Is Jimmywu66 & EastUnitedMusic the same person?
- Thread starter Sacman
- Start date
dogman dan
1 PW
Hey they may turn out to be a damn good pack. Who knows till the brave ones try it? Too bad his delivery is so poor, but maybe it will improve now that the Olympics is over. At one point we were just as skeptical of Ping's cells.
dnmun
1 PW
i would appreciate some pictures. i looked over the current listings on ebay, seems like there are 3 or 4 vendors in hongkong and shenzen who are reselling battery packs assembled somewhwere in china, i doubt in hong kong. the guy who is selling in all likelyhood is a friend or relative of some guy who has dragged several friends and their wives into building batteries. entrepreneurs is what you call them here. what i didn't understand out of the pages of diatribe back there is whether anybody really got ripped off, or if they were sold a defective battery by these evil prison factory labor workers who were forced to make these batteries and filled them with their vomit and yaddayadda.
give it a rest.
which batteries were duct tape batteries, prismatic like mr ping's batteries, and who got cylindrical cells, what is the welding like, how good is the workmanship on the BMS, ugly joints, bad solder joints, cheap PCB? pictures, pictures, please
also, check the voltage when it arrives, it would be helpful to check the voltage output of the charger too, and why won't the BMS work from the start? already charged or already discharged?
i also saw a cheap bid for a 24V10Ah pack with case and locking rail $80, a closeout from a shop in US, but some of the bid prices on the hongkong lifepo4 batteries seem real cheap, toyiko just got a 48V20Ah for $325 i think, seemed too cheap to believe, but i think the first of mr ping's batteries sold for $300.
the guy who had the amplifier stuff in the background is still on ebay selling lifepo4 , i saw a buncha his specific recommendations, all about amplifiers and vacuum tubes, same guy most likely.
give it a rest.
which batteries were duct tape batteries, prismatic like mr ping's batteries, and who got cylindrical cells, what is the welding like, how good is the workmanship on the BMS, ugly joints, bad solder joints, cheap PCB? pictures, pictures, please
also, check the voltage when it arrives, it would be helpful to check the voltage output of the charger too, and why won't the BMS work from the start? already charged or already discharged?
i also saw a cheap bid for a 24V10Ah pack with case and locking rail $80, a closeout from a shop in US, but some of the bid prices on the hongkong lifepo4 batteries seem real cheap, toyiko just got a 48V20Ah for $325 i think, seemed too cheap to believe, but i think the first of mr ping's batteries sold for $300.
the guy who had the amplifier stuff in the background is still on ebay selling lifepo4 , i saw a buncha his specific recommendations, all about amplifiers and vacuum tubes, same guy most likely.
Sacman
10 kW
dogman said:
I didn't want the discussion of my BMS take this topic off into a tangent direction so I continued it ...here http://endless-sphere.com/forums/viewtopic.php?f=4&t=6329
Sacman
10 kW
leamcorp said:
Hey leamcorp do you got any specs on these Valence Saphion cells? Somewhere I read that the nominal voltage on these cells was 3.2v/cell... Can you verify this?
Are these the 18650 cells you are reffering to??? http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=3071
Oh and yeah please post some pics of your cells when you can. I'm really curious to see what the cells look like and the construction of the pack inside and I don't feel like cutting open my battery packs just yet.
Also, I read on your other post that you said your charger's final voltage is 55.4v, mine is 54.4v, Ping said his 48v LiFePO4 chargers are 61v. Hmmm... I'm wondering which is the best charger to use.
Lastly, my charger looks like this... Does your's look the same?
Sacman said:leamcorp said:
Hey leamcorp do you got any specs on these Valence Saphion cells? Somewhere I read that the nominal voltage on these cells was 3.2v/cell... Can you verify this?
Are these the 18650 cells you are reffering to??? http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=3071
Oh and yeah please post some pics of your cells when you can. I'm really curious to see what the cells look like and the construction of the pack inside and I don't feel like cutting open my battery packs just yet.
Also, I read on your other post that you said your charger's final voltage is 55.4v, mine is 54.4v, Ping said his 48v LiFePO4 chargers are 61v. Hmmm... I'm wondering which is the best charger to use.
Lastly, my charger looks like this... Does your's look the same?
I didn't take any pictures before closing and yes its same charger.
As for the spec, I'm not 100% sure but I think it's same cell. The actual part # is - IFR-18650EC. Did a google and spec found was same.
Sacman
10 kW
leamcorp said:
Hmmmm... these 18650 cells seem to be a common name among battery manufacturers. Here's a link to one that has the built-in circuit protection. It also has a higher nominal voltage (3.7v/cell) and a higher charge capacity (2200mAh).http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=2114
But these cells look too nice. I'm pretty sure these aren't the ones used in our battery packs.
rguy56
100 W
Just to let dnmun know, I was personally ripped off.
I received two non functioning batteries, a smashed charger, and, bonus...one functioning charger at a cost of over $1,500 plus duties and taxes. Just for the record, in case the condition was caused by transport, I was billed for shipping insurance by the vendor.
I had numerous email contacts with Lau Chan that amounted to him having no interest in providing any service.
I had to send the batteries and chargers back to Hong Kong to ARRIVE within a week to satisfy the standards for "paypal protection" at a further cost of over $300, and in spite of that being done, paypal has not even responded to my inquiries regarding coverage, and has certainly not compensated me in any way for my losses.
I am truly glad that someone has received working batteries.
bob
I received two non functioning batteries, a smashed charger, and, bonus...one functioning charger at a cost of over $1,500 plus duties and taxes. Just for the record, in case the condition was caused by transport, I was billed for shipping insurance by the vendor.
I had numerous email contacts with Lau Chan that amounted to him having no interest in providing any service.
I had to send the batteries and chargers back to Hong Kong to ARRIVE within a week to satisfy the standards for "paypal protection" at a further cost of over $300, and in spite of that being done, paypal has not even responded to my inquiries regarding coverage, and has certainly not compensated me in any way for my losses.
I am truly glad that someone has received working batteries.
bob
dnmun
1 PW
ok, thanks, that's what i wanted to know. i had a dispute and ebay sided with the seller, not ripped off as much as you though. any idea what happened to the batteries, was it like the BMS that sacman had? did you save any pictures from them so we can compare them to the other batteries that are currently on ebay? i was able to send an email to one person who just bot a cheap lifepo4 on ebay, asked them to contact this board and let us know how they worked. it would be neat if someone asked the seller to come onto endless-sphere and establish an identity, like mr ping has done, also randy bot one of those on ebay too:
http://picasaweb.google.com/bobdiode/48V15AhLifepo4Pack?authkey=v3t6kw1HPEU#
does yours look like that?
http://picasaweb.google.com/bobdiode/48V15AhLifepo4Pack?authkey=v3t6kw1HPEU#
does yours look like that?
Sacman
10 kW
I don't know if this will help or not but...
I now people send emails and negative feedback to the seller with threats to do... things like (open a PayPal dispute or claim, report them to ebay for fraud...etc.). I know it's difficult not to do especially when you're frustrated that the seller isn't servicing you, or not giving you information on the progress of your order, or even just not replying to you. I wanted to send my seller similar threats but resisted. I never sent any letter with threats. I'd tell him how dissapointed I was (very elaborately) and I'd even include the number of days I've been wating for him to deliver in each email... but I never made threats. Even when I opened a PayPal dispute and escalated it to a claim. I didn't threaten him. I'd wait 2 or 3 weeks and when I got no response I just opened the dispute or claim.
I really don't know if that made a difference or not. I just didn't want to give the seller a reason to do anything to retaliate. I'd be curious tho how many of us who got their batteries finally delivered or got a refund from thier seller made threats or not.
I now people send emails and negative feedback to the seller with threats to do... things like (open a PayPal dispute or claim, report them to ebay for fraud...etc.). I know it's difficult not to do especially when you're frustrated that the seller isn't servicing you, or not giving you information on the progress of your order, or even just not replying to you. I wanted to send my seller similar threats but resisted. I never sent any letter with threats. I'd tell him how dissapointed I was (very elaborately) and I'd even include the number of days I've been wating for him to deliver in each email... but I never made threats. Even when I opened a PayPal dispute and escalated it to a claim. I didn't threaten him. I'd wait 2 or 3 weeks and when I got no response I just opened the dispute or claim.
I really don't know if that made a difference or not. I just didn't want to give the seller a reason to do anything to retaliate. I'd be curious tho how many of us who got their batteries finally delivered or got a refund from thier seller made threats or not.
rguy56
100 W
dnmun,
I have pictures, but I can't figure out how to copy them to the bulletin board this morning. They don't look like the ones in your link, and the charger didn't look as slick as the one posted by leamcorp.
Bob
I have pictures, but I can't figure out how to copy them to the bulletin board this morning. They don't look like the ones in your link, and the charger didn't look as slick as the one posted by leamcorp.
Bob
dnmun
1 PW
to load a picture, click on 'download attachment' at the bottom of the page, then browse to where you pictures are stored, you can find where the pictures are stored by looking in your image transfer program, then click on the folder, down to the actual image, and then when you hit 'open' it copies it into your post.
any pictures would help so we can just start collectiong enuff info about the individual sellers to know who is who, since they change their names twice a year and i think there are really on 3 people besides yesa and mr ping. hard to believe how sceptical people were of mr ping just a few months ago, but performance, response to the buyer, and honor seem to tripled the price he can get for his batteries now. i wonder when shenzen electric will do that, maybe they already do under the headway brand, they are both in shenzen.
any pictures would help so we can just start collectiong enuff info about the individual sellers to know who is who, since they change their names twice a year and i think there are really on 3 people besides yesa and mr ping. hard to believe how sceptical people were of mr ping just a few months ago, but performance, response to the buyer, and honor seem to tripled the price he can get for his batteries now. i wonder when shenzen electric will do that, maybe they already do under the headway brand, they are both in shenzen.
I just got the battery from jimmywu66 delivered to me today. Should I charge it up before connecting it to my controller? If so how long will the charge be? I'll let yall know how it'll go but I don't have any voltmeter or cycle analyst to test it.
thanks for any reply
thanks for any reply
dnmun
1 PW
picture? do you have little voltmeter? even the $3 digital multimeters from harbor freight will do a lot, measure the voltage on the battery pack, through the BMS to insure it is turned on, and also check the voltage on your charger, it will be high when open circuit but it will drop down when you conect it and it starts charging the battery.
by comparison to the batteries pictured on ebay now, which one of the ebay batteries is this, from cammy-cc or asales? or free shopping? toyiko has dissapeared since he got his battery, would be neat if he sent us pictures of it too. if we can characterize the batteries by their appearance, then we can keep track of who is who, no matter how many times they change their names on ebay.
by comparison to the batteries pictured on ebay now, which one of the ebay batteries is this, from cammy-cc or asales? or free shopping? toyiko has dissapeared since he got his battery, would be neat if he sent us pictures of it too. if we can characterize the batteries by their appearance, then we can keep track of who is who, no matter how many times they change their names on ebay.
Ok, I took that bad girl out for a ride it was awesome. The battery performed fine with the small hills around here with plenty of torque from my golden motor. On a straight way with small incline it was the fastest I ever been on a bicycle period (and i'm in shape). One problem that I did have was that when the breaks that came with golden motor kit are connected to the controller the whole thing wouldn't work. At first I thought the battery had voltage but after I disconnected the breaks from the controller it worked fine. I hope one of you guys could let me know why. I know its connected correctly because thats the way it was connected from the box, and its the only other male female connecter that fits each other perfectly, lastly colors of wires matches. Also, the very first time I connected battery to the controller there was a big spark that scared the crap out of me. Then the more I touch the connecter to the battery the less dramatic the spark & it calmed down. It did leave a black mark on my connecter though.
Final thought on my first ride is that people were looking at me. I don't like that very much because I feel like somebody is going to steal it. I also hate being first to use a technology because people will look and stare. So I guess I just have to fake pedal when I'm around peoople. Now my next challenge is mounting my battery. I have an enclosure that will go into the bicycle frame. The 48v 10a that I got is very thin in middle so it won't stick out like the bigger batteries. Now I just have to get somebody to hack off my enclosure precisly to the shape of my middle biccyle frame. As to what the battery looks like, its the same set up with blue duck tape as the person who started this post. The box came very neatly packed and seems sturdy enough for protection.
I don't have a camera to take pictures right now. I have a camera phone with no flash memory card, but if I can borrow from some one i know then i can take pictures and post for you guys.
o
Final thought on my first ride is that people were looking at me. I don't like that very much because I feel like somebody is going to steal it. I also hate being first to use a technology because people will look and stare. So I guess I just have to fake pedal when I'm around peoople. Now my next challenge is mounting my battery. I have an enclosure that will go into the bicycle frame. The 48v 10a that I got is very thin in middle so it won't stick out like the bigger batteries. Now I just have to get somebody to hack off my enclosure precisly to the shape of my middle biccyle frame. As to what the battery looks like, its the same set up with blue duck tape as the person who started this post. The box came very neatly packed and seems sturdy enough for protection.
I don't have a camera to take pictures right now. I have a camera phone with no flash memory card, but if I can borrow from some one i know then i can take pictures and post for you guys.
o
Sacman
10 kW
Hey MrHat,
I'm the one who started this topic. It's good to hear another person got their battery successfully and that they're happy with the way it performs. Makes me think that some of these vendors are not as rouge as I initially thought they were (that's really good thing).
Anyway, the big spark you got on initial connection is normal and typical of may controllers since they got capacitors with stored energy in them. Mine does that too if I just plug and unplug the connector. That's why it's best to use a switch between the battery and controller.
Does your BMS work fine? Mine don't seem to work at all.
I'm the one who started this topic. It's good to hear another person got their battery successfully and that they're happy with the way it performs. Makes me think that some of these vendors are not as rouge as I initially thought they were (that's really good thing).
Anyway, the big spark you got on initial connection is normal and typical of may controllers since they got capacitors with stored energy in them. Mine does that too if I just plug and unplug the connector. That's why it's best to use a switch between the battery and controller.
Does your BMS work fine? Mine don't seem to work at all.
Hey Guys,
Great thread. I wish I could have come across it earlier. I would have felt a little more comforted as I dealt with Mr. Lau/JimmyWu66/chan71@gmail.com/and all those other names. I just joined endless-sphere tonight just to make this post. I have so much to say about this JimmyWu66 guy, my overall expericence with him, and so far only a little to say about the battery. In short, it took forever to get the battery and the battery seems to be good but I am not getting the distance that I hoped I would get out of it.
I bought a 36 volt 10 ah LiFePo4 battery from Mr. Lau and am getting about 6 miles with an average speed of 20 mph before it cuts off. Maybe this is normal for this size battery and the speed I am going, I don't know. I was hoping to get at least 10 miles out of it at this speed.
From my first of three rides, here are some specs:
0.0 miles 40.7 volts (wasn't fully charged, full charge is around 41.8 volts I think, maybe 40.8)
2.3 miles 39.1 volts
4.5 miles 38.9 volts
5.4 miles 38.4 volts
The volts readings were taken by getting off the bike and putting a volt meter up to the battery.
After reaching the 38.4 volts, the battery would keep cutting off.
For this ride, the average speed was in the neighborhood of 18-20 mph.
For my second ride, I got around 6.4 miles at around 18 mph average and with a fully charged battery.
My third ride I'm estimating around 5-6 miles. Estimating because I made a 13 mile ride but switched over to my 24 volt 10 ah lead acids a lot because I needed to make the whole distance and was afraid that the 36 volt 10ah battery would cut out on me too soon.
Anyways.......... the battery performance is very strong and from the outside the battery seems well made. I just wanted more distance. I'm not sure if the BMS is cutting the battery off too soon.
As far as JimmyWu66,
I too had to wait a long time to receive my battery.... in the neighborhood of 50 days. I also wrote well over 50 emails to him but never threatened him with anything. I just kept letting him know how anxious I was to receive the battery and, basically, how ridiculous it was having to wait so long. I think the olympics may have played a little into the delay. I think the main reason for the delay was that he never had the battery before selling it (and that was not cool). I think maybe he was able to get some of the parts but not all of them (battery, charger, or bms) so he had to keep coming up with terrible, non sensesical, numb headed excuses. The reason he may not have gotten one or all of the parts may have been due to the Olympics. If he just spoke better English and explained REALLY what was going on, I would have felt better about my experience with him. I never really thought that I was going to get ripped off by him but came to the conclusion that it could be a real long wait to receive the battery.... which it was. This was my first Ebay purchase (and was a gamble in a way) and now I am scared to order from Ebay again. This is not fair to ebay and to me as the buyer.
The good news and very, very important to me was that the battery fit perfectly into the case that I was trying to fit it into so I was totally excited about that. I confirmed the dimensions with Mr. Wu several times. When I finally took the bike and new battery for a ride, I was thrilled at first. But, then, the battery cut off after 5.4 miles so I was a little disappointed. Not sure what to think about the battery at the moment. It is a good, strong, fun ride though.
BTW, I have a 2007 ezip Trailz with a 36 volt 600 watt brushed Wilderness Energy front hub. I removed the original 24 volt rear DC earth magnet motor from the ezip and used all the original controllers, etc.
I'll return later for more input but need to go to bed for now. I'll get another ride in tomorrow morning. Just wanted to let everyone know that the battery seems good and well made (from the outside) but there may be a problem with the BMS?
Great thread. I wish I could have come across it earlier. I would have felt a little more comforted as I dealt with Mr. Lau/JimmyWu66/chan71@gmail.com/and all those other names. I just joined endless-sphere tonight just to make this post. I have so much to say about this JimmyWu66 guy, my overall expericence with him, and so far only a little to say about the battery. In short, it took forever to get the battery and the battery seems to be good but I am not getting the distance that I hoped I would get out of it.
I bought a 36 volt 10 ah LiFePo4 battery from Mr. Lau and am getting about 6 miles with an average speed of 20 mph before it cuts off. Maybe this is normal for this size battery and the speed I am going, I don't know. I was hoping to get at least 10 miles out of it at this speed.
From my first of three rides, here are some specs:
0.0 miles 40.7 volts (wasn't fully charged, full charge is around 41.8 volts I think, maybe 40.8)
2.3 miles 39.1 volts
4.5 miles 38.9 volts
5.4 miles 38.4 volts
The volts readings were taken by getting off the bike and putting a volt meter up to the battery.
After reaching the 38.4 volts, the battery would keep cutting off.
For this ride, the average speed was in the neighborhood of 18-20 mph.
For my second ride, I got around 6.4 miles at around 18 mph average and with a fully charged battery.
My third ride I'm estimating around 5-6 miles. Estimating because I made a 13 mile ride but switched over to my 24 volt 10 ah lead acids a lot because I needed to make the whole distance and was afraid that the 36 volt 10ah battery would cut out on me too soon.
Anyways.......... the battery performance is very strong and from the outside the battery seems well made. I just wanted more distance. I'm not sure if the BMS is cutting the battery off too soon.
As far as JimmyWu66,
I too had to wait a long time to receive my battery.... in the neighborhood of 50 days. I also wrote well over 50 emails to him but never threatened him with anything. I just kept letting him know how anxious I was to receive the battery and, basically, how ridiculous it was having to wait so long. I think the olympics may have played a little into the delay. I think the main reason for the delay was that he never had the battery before selling it (and that was not cool). I think maybe he was able to get some of the parts but not all of them (battery, charger, or bms) so he had to keep coming up with terrible, non sensesical, numb headed excuses. The reason he may not have gotten one or all of the parts may have been due to the Olympics. If he just spoke better English and explained REALLY what was going on, I would have felt better about my experience with him. I never really thought that I was going to get ripped off by him but came to the conclusion that it could be a real long wait to receive the battery.... which it was. This was my first Ebay purchase (and was a gamble in a way) and now I am scared to order from Ebay again. This is not fair to ebay and to me as the buyer.
The good news and very, very important to me was that the battery fit perfectly into the case that I was trying to fit it into so I was totally excited about that. I confirmed the dimensions with Mr. Wu several times. When I finally took the bike and new battery for a ride, I was thrilled at first. But, then, the battery cut off after 5.4 miles so I was a little disappointed. Not sure what to think about the battery at the moment. It is a good, strong, fun ride though.
BTW, I have a 2007 ezip Trailz with a 36 volt 600 watt brushed Wilderness Energy front hub. I removed the original 24 volt rear DC earth magnet motor from the ezip and used all the original controllers, etc.
I'll return later for more input but need to go to bed for now. I'll get another ride in tomorrow morning. Just wanted to let everyone know that the battery seems good and well made (from the outside) but there may be a problem with the BMS?
dogman dan
1 PW
First off, your battery should develop some more range after a few more charge cycles, like half a dozen or so. That is the good news.
Now the not so good news.
A ping battery starts out at 44.5v, so if your full charge voltage stays around 40v, you either have some bad cells in there, or an 11 cell battery as opposed to most, that are 12. Not sure why they still call it a 36v, when it's more like a 41v but anyway, one less cell, or 3.5 less volts is gonna mean a few less watts stored in the battery. The cut out voltage of your bms seems about right to me. I think mine goes at around 39 v.
The other thing is your battery is undersised. So you will have some voltage sag that is worse than that a 20 ah battery will have. Your battery is really only going to produce close to 10 ah at a slower speed, whatever draws 10 amps or less. So your battery will act more like 9 ah than a 10. Plus, 10 ah is a theoretical sise, so most of us leave a significant ammount of the theoretical capacity in the battery when the bms cuts out, like a half amp hour or so.
I think with this battey you will see about 8 mile range you can count on at full throttle, but not much more unless you slow way down. What I get out of my 36v 20ah Ping is 20 miles at full throttle. So 10 would be your max potential. The WE brushed is not known for being thrifty with the watts as you no doubt allready know from the sla's.
Do keep us posted down the road 500 miles or so, and let us know if the pack stays as good as it is, or degrades slowly over the next 100 cycles or so. Start a new thread about your real world experience with the thing, this one is getting long.
Now the not so good news.
A ping battery starts out at 44.5v, so if your full charge voltage stays around 40v, you either have some bad cells in there, or an 11 cell battery as opposed to most, that are 12. Not sure why they still call it a 36v, when it's more like a 41v but anyway, one less cell, or 3.5 less volts is gonna mean a few less watts stored in the battery. The cut out voltage of your bms seems about right to me. I think mine goes at around 39 v.
The other thing is your battery is undersised. So you will have some voltage sag that is worse than that a 20 ah battery will have. Your battery is really only going to produce close to 10 ah at a slower speed, whatever draws 10 amps or less. So your battery will act more like 9 ah than a 10. Plus, 10 ah is a theoretical sise, so most of us leave a significant ammount of the theoretical capacity in the battery when the bms cuts out, like a half amp hour or so.
I think with this battey you will see about 8 mile range you can count on at full throttle, but not much more unless you slow way down. What I get out of my 36v 20ah Ping is 20 miles at full throttle. So 10 would be your max potential. The WE brushed is not known for being thrifty with the watts as you no doubt allready know from the sla's.
Do keep us posted down the road 500 miles or so, and let us know if the pack stays as good as it is, or degrades slowly over the next 100 cycles or so. Start a new thread about your real world experience with the thing, this one is getting long.
docnjoj
1 GW
Concur about voltage after charge. Should settle in at about 43.5 after sitting for a while off charger! My wife gets 15 miles with 36 volt 10ah Ping, but she weighs a little less than me!!! 
Also on recumbent.
otherDoc
Also on recumbent.otherDoc
Ypedal
100 TW
If at all possible, hook up your volt meter to the battery and tape it to the bike frame so you can see the voltage while you ride, report back pls!
It might be the BMS that is cutting out, or it could be the motor controller if the voltage sags bad enough under load.
Does the pack get hot after the 6 mile ride ?
It might be the BMS that is cutting out, or it could be the motor controller if the voltage sags bad enough under load.
Does the pack get hot after the 6 mile ride ?
rguy56
100 W
OOOO...VERY BAD NEWS ABOUT LAU...
Lau sent me an email saying that they tested my returned battery, and that there was nothing wrong with it. For what it's worth, I returned two. As well, I have very clear, very detailed photos of the testing I did on the batteries.
Now, the interesting/bad news is that he photographed his "testing", and while his duct tape was grey, and one of my batteries was grey, I have my own pictures of both batteries, and that battery is not the same as the one I sent back. The tape has been changed, and there are different wires coming out of the bms.
I can't think of a positive light to put this in. This is not an honest way to do business. Every time that I want to think well of eastunitedmusicjimmywuu66peterwong228mp3hk, Lau absolutely lets me down. It's not just an olympic thing. He has proven to me that he can't be trusted.
Bob
Lau sent me an email saying that they tested my returned battery, and that there was nothing wrong with it. For what it's worth, I returned two. As well, I have very clear, very detailed photos of the testing I did on the batteries.
Now, the interesting/bad news is that he photographed his "testing", and while his duct tape was grey, and one of my batteries was grey, I have my own pictures of both batteries, and that battery is not the same as the one I sent back. The tape has been changed, and there are different wires coming out of the bms.
I can't think of a positive light to put this in. This is not an honest way to do business. Every time that I want to think well of eastunitedmusicjimmywuu66peterwong228mp3hk, Lau absolutely lets me down. It's not just an olympic thing. He has proven to me that he can't be trusted.
Bob
Sacman
10 kW
Only 8 mile range? Are you pedaling at all?dogman said:
I was getting 17-18 miles on my 36v 10ah at full throttle all the way but I always pedal.
Does your wife pedals when she rides? ... that range sounds about right.docnjoj said:My wife gets 15 miles with 36 volt 10ah Ping, but she weighs a little less than me!!!
otherDoc
docnjoj
1 GW
Yeah! She tries to stay off the throttle as much as possible!
otherDoc
otherDoc
dogman dan
1 PW
WE bd36 is a notroiously bad motor for range. Fast sucker though. Now that I have a big battery, I like mine fine.
On the other post, we really need a way to tell who's name mr Lau is selling under this week. Of course, it won't help those who don't read our posts.
On the other post, we really need a way to tell who's name mr Lau is selling under this week. Of course, it won't help those who don't read our posts.
I got 7 miles on my JimmyWu66/Mr. Lau/Lau Chan/chan71@gmail.com/peterwong228/EastUnitedMusic/etc and NOW mp3hk 36 volt 10ah special. Bike is a 600 watt brushed WE. Average speed was 18 mph. There was lots of cruising at 20 mph, some stop and gos, and long small inclines and declines. No, I didn't pedal asssist all that much. My gears aren't that helpful above 17-18 mph. Looks like I need some bigger bike gears if I want to assist at these higher speeds and get some more mileage. So that was 7 miles mostly battery. Not bad I guess. The battery case was ever so slightly warm on the outside after the ride. I don't quite understand how the charger works. While definately charging there were two red lights. One of the red lights turned green after 2-3 hours so I figured it was done charging. The charge right after removing the charger was 41.5 volts and has seemed to settle out at 40.2 volts after a half hour. Maybe I need to keep the charger on longer despite the green light. I'm a little disappointed I'm not getting the 44.5 volts like the Ping specials. Feels like I may be getting cheated out of a mile or two.
