what is the best e-bike kit??

[o00scorpion00o]

and this battery is this a good whan: http://www.bmsbattery.com/48v/129-48v-1 ... -pack.html

I don't have any experience with their batteries nor do I know anyone who has, maybe if you post in the battery section someone might be using one.

But the specs are O.K for lower power use, 40 amps max on acceleration, so I would set my controller to 20 amps or just buy a 20 amp controller, most 1000 Watt kits won't come with more than a 20 amp controller anyway.

It probably won't last quiet as long as the LiFeP04, but it will be smaller and lighter, just don't forget the rack for that battery if you decide to get it.

It has a claimed 800 cycles, if you charge twice a day, 7 days ( because it's only 10ah ) That's 730 cycles, so you might get just over a year, less if you pull too many amps. You can always save for a better kit in the mean time.

I think you wanted something like 12 miles each way ? if so you should just about manage 1 trip full throttle and no pedal on level ground and charge at your destination.

[parmenps]

how far can I get with a 15AH battery ?

[Racer_X]

I have that battery on the wife bike. I think it is a good deal for first time battery and It works as it is supposed to.
The problem for beginners is that you have to make a discharge cable for the female prong connector that plug into the back of the battery.


I have a picture of how it looks just have to look for it.

[parmenps]

as i the 15ah battery but can I then 18 miles on full speed (45/50 kmp)

[parmenps]

which battery is beter the Lifepo4 48v 9,5ah or Li-Ion 48v 15 ah

[o00scorpion00o]

which battery is beter the Lifepo4 48v 9,5ah or Li-Ion 48v 15 ah

I would say the bmsbattery.

[parmenps]

i go but this battery: http://www.bmsbattery.com/48v/403-48v-1 ... -pack.html
and this motor (1000w) : http://www.conhismotor.com/Diy_eBike.asp

how fast and how far I get with this set?

[o00scorpion00o]

i go but this battery: http://www.bmsbattery.com/48v/403-48v-1 ... -pack.html
and this motor (1000w) : http://www.conhismotor.com/Diy_eBike.asp

how fast and how far I get with this set?

The motor doesn't show up, but is it the 1000 watt kit ? it should do 40-48 kph max, but it will take a little while to get there at 15-20 amps, I know the controller they sent me was set to 15 amps, but don't know how they are set now!

The 48V 15 ah should get you 30kms. And it should be fine, if you charge it twice a day it should last a year maybe more, if you get away with only one charge you might see it last 2 years.

[senoritoriver]

I have been looking into that same kit from conhismotor and it seems like thats the best way to go. you can get all the parts you need in the kit so theres no need for a parts list (which he requested earlier i believe) and you have lots of options. he can get a 48v1000w motor, a 48volt 20ah lifepo4 battery with BMS, a battery bag and a charger, he can upgrade to 60A continuous BMS, and can get a 5Ah fast charger for $687+ shipping. that seems pretty unbeatable. (and as far as the pedelec sensor, i've read that it isn't recommended with 1000w kits)

[parmenps]

do you know a cheap and good battery for my 1000w 48v motor ??????????

[o00scorpion00o]

do you know a cheap and good battery for my 1000w 48v motor ??????????

I thought you would have settled for something by now ?

Unfortunately batteries are not cheap. Ping battery is probably the best value you are going to get. 48V 15-20 ah! If you can't get it now, wait until you have saved up enough, you won't regret it. I would go with the 20 ah. For best range!

Cell-man's battery would be best for performance!

[parmenps]

will this battery: http://www.e-bikekit.com/shop/index.php ... 9&parent=2
as fast as the ping battery

[o00scorpion00o]

will this battery: http://www.e-bikekit.com/shop/index.php ... 9&parent=2
as fast as the ping battery

No, lead acid is not really suitable, as far as I'm aware you can only pull 1C or less from lead acid, maybe someone with better knowledge of lead acid could advise you better but 9ah won't get you far because you will really get maybe 6 if you are lucky as the voltage sag on lead acid is supposed to be terrible!

As I said if you can't afford it now then wait until you have enough money saved and get a proper battery, no point spending money on a battery only wishing you waited for a much much better one!

[motomech]

Wow,
This thread has strung on for two months and 8 pages and the guy still can't make a decision

[Chalo]

No, lead acid is not really suitable, as far as I'm aware you can only pull 1C or less from lead acid, maybe someone with better knowledge of lead acid could advise you better but 9ah won't get you far because you will really get maybe 6 if you are lucky as the voltage sag on lead acid is supposed to be terrible!

I've routinely pulled 2C from ordinary UPS-type absorbed glass mat batteries without noteworthy voltage sag. Current capacity is one of their relative strengths.

The real lameness of SLA batteries is the combination of serious Peukert effect and intolerance of deep discharge. I always consider SLA batteries in an electric vehicle application to be good for half their rated amp hours (if you want to get a couple of hundred cycles out of them). Drawing 6Ah at high discharge rate out of 9Ah SLAs is just pounding the crap out of them; they won't last long under such conditions.

Chalo

[wesnewell]

will this battery: http://www.e-bikekit.com/shop/index.php ... 9&parent=2
as fast as the ping battery

$240 for 9ah of lead is really high. And no, it won't go as fast, but only slightly slower.. FWIW, four of these is 48V and you can get a 2a 48V charger for maybe $20.
http://www.batteriesasap.com/ps1290.html
And if I had to use sla batteries, I'd just pedal instead.

[parmenps]

will this battery: http://www.e-bikekit.com/shop/index.php ... 9&parent=2
as fast as the ping battery

$240 for 9ah of lead is really high. And no, it won't go as fast, but only slightly slower.. FWIW, four of these is 48V and you can get a 2a 48V charger for maybe $20.
http://www.batteriesasap.com/ps1290.html
And if I had to use sla batteries, I'd just pedal instead.

will this battery as fast as the ping battery?

[o00scorpion00o]

you mean the lead acid be as fast as the Ping ?

I would thing no, but it's not the speed that would concern me, it's the weight. And you won't get 9ah out of a 9ah lead acid battery! And may last 300 cycles compared to 1000+ for the Ping and 70% capacity thereafter!

[wesnewell]

will this battery as fast as the ping battery?

No. 48V sla maxes out at about 56V during warm weather, and it sags a lot too. A 16s lifepo4 battery will max out about 59V. Higher the voltage, the more speed you get. But to be honest, it won't be much more.

[parmenps]

I go with a 20Ah battery as hard as a 10Ah battery

[o00scorpion00o]

I go with a 20Ah battery as hard as a 10Ah battery

I don't understand the question ?

[parmenps]

I go faster with a 20Ah or 10Ah battery or it does not matter

[o00scorpion00o]

I go faster with a 20Ah or 10Ah battery or it does not matter

Well that depends on a few things really such as the batteries ability to deliver the power under load.

For instance if the 20ah battery can only provide 20 amps or 1C, acceleration will be slow compared to a 10ah battery that can supply 50 amps + or 5C

That really effects acceleration and hill climbing, top speed on level ground would be much the same!

For lower powered applications a geared hub makes the most sense because you will get more torque from it over a direct drive, and it will be far easier to pedal. In fact peddling a geared hub even a little up a steep hill can really reduce your energy consumption, it works much better than a direct drive, so you and the geared hub help eachother.

[wesnewell]

A (amps)=torque
V (volts)=torque and speed
Ah (amp hours)=how long the battery will run before being discharged
C rate= how many amps your pack can provide. IOW's ah x C rate=max amps. A 10ah 30C lipo pack provides up to 300A
There are some variances to consider, like voltage sag under load, but that basically sums it up. Just make sure your battery can provide the max A of your controller and you'll be good.

[parmenps]

I just got my motor within (the 1000w motor ----- http://www.conhismotor.com/Diy_eBike.asp )

Now only one battery order

Im happy