Search found 5447 matches
- Nov 14 2017 6:56am
- Forum: EBike General Discussion
- Topic: Source for Q128 motors AND repair parts
- Replies: 7
- Views: 1516
Re: Source for Q128 motors
I looked at the Aikema web site and couldn't determine which motor was which. There also, doesn't seem to be any ordering or price information. I may try communicating with them to see if they sell directly. I tried to talk BMSbattery into using a slower, cheaper shipping method but they only use D...
- Nov 02 2017 5:48pm
- Forum: EBike Technical
- Topic: Mean-Wells
- Replies: 13
- Views: 1680
Re: Mean-Wells
Rockin' tip.
If you have a moment could you share the measured highest/lowest voltage that model outputs adjusted maximum? Specs show 27-54VDC so if it reaches 54.6V it could be useful solution for 48V pack charging?
If you have a moment could you share the measured highest/lowest voltage that model outputs adjusted maximum? Specs show 27-54VDC so if it reaches 54.6V it could be useful solution for 48V pack charging?
- Nov 01 2017 6:26am
- Forum: EBike General Discussion
- Topic: More ebike questions
- Replies: 39
- Views: 3376
Re: More ebike questions
Li-ion/poly 13S (48V) fully charged = 54.6V Practically empty = about 40Vs4turn wrote:interesting, battery charges to 54v?
is that normal for a 48v battery?
- Oct 31 2017 12:29pm
- Forum: General Discussion
- Topic: Dogman Dans E bike burns his house.
- Replies: 180
- Views: 28888
Re: Dogman Dans E bike burns his house.
Happy for you Dan! Enjoy, the new'ish digs....
- Oct 31 2017 12:25pm
- Forum: EBike Technical
- Topic: Mean-Wells
- Replies: 13
- Views: 1680
Re: Mean-Wells
Safe travels road dog… Yeah, this stuff is reaching roughly 1lb per 100Wh and fairly well protected via BMS. Good times! But I would still treat ANY battery pack with care due a large amount of stored energy. Think about where you charge? Avoid messy, flammable areas as much as possible. RC Lipo can...
- Oct 30 2017 4:47pm
- Forum: EBike Technical
- Topic: Mean-Wells
- Replies: 13
- Views: 1680
Re: Mean-Wells
Other than storage don't mess with 80-90% SOC on any BMS equipped pack. Most BMS will never balance unless charged 100%. In practice, the main thing to avoid is sitting full SOC for more than couple days at time. If you know you won't use a pack for a few days or longer, merely charge to 80%. Do a q...
- Oct 26 2017 8:50am
- Forum: EBike General Discussion
- Topic: Criminalizing e-biking
- Replies: 56
- Views: 7055
Re: Criminalizing e-biking
So it's ALL still Obama's fault? Precious, just absolutely precious, ROTFLMAO.... +1 eBike GWB... Bill de Blasio, born and raised Warren Wilhelm, is your standard issue left wing Democratic which has overrun my formerly great party in the last 10 years and ran it into the ground. It should come as n...
- Oct 23 2017 3:11pm
- Forum: EBike General Discussion
- Topic: Criminalizing e-biking
- Replies: 56
- Views: 7055
Re: Criminalizing e-biking
Cellphones are more dangerous to the public than eBikes...
de Blasio's a bum and tool for caving to the likes of Jessica Lappin and her cronies with their misplaced irrational vendetta against eBikes.
de Blasio's a bum and tool for caving to the likes of Jessica Lappin and her cronies with their misplaced irrational vendetta against eBikes.
- Oct 22 2017 11:13pm
- Forum: EBike General Discussion
- Topic: how about this instead of a bms?
- Replies: 7
- Views: 1180
Re: how about this instead of a bms?
Balance only not for protection.
- Oct 21 2017 10:10am
- Forum: Battery Technology
- Topic: Is it OK to replace 40ah scooter batteries with 35ah?
- Replies: 27
- Views: 2720
Re: Is it OK to replace 40ah scooter batteries with 35ah?
SLA capacity ratings when used for EV purposes should be divided in half. In other words, 40Ah labelled SLA capacity is only about 20Ah in the real world. That's why someone mentioned going to Lithium 20Ah and it would deliver the same range as the original 40Ah SLA.
- Oct 21 2017 10:05am
- Forum: EBike Non-hub Motor Drives
- Topic: Most travelled BBSHD ?
- Replies: 8
- Views: 2367
Re: Most travelled BBSHD ?
Over 2k miles each on both a BBS02 and BBSHD and never greased anything. The 02 got a new controller after getting wet but that’s been the only work I’ve done to either system. I hear some freewheel noise in BBSHD when it releases but until it becomes nastier I’m not gonna bother opening it up. The ...
- Oct 20 2017 11:22am
- Forum: General Discussion
- Topic: Any Auto AC Mechanics Here?
- Replies: 9
- Views: 1701
Re: Any Auto AC Mechanics Here?
My shade tree trick to determine if an AC system is undercharged is blocking some air flow from a portion of the condenser coil. If the evaporator air goes colder while some of the “capacity” has been reduced then it can probably use a little more Freon. I learned this by accident on my home AC. Ear...
- Oct 07 2017 8:53am
- Forum: EBike Non-hub Motor Drives
- Topic: Voltage reading in Display Cable, please advise. BBS02B
- Replies: 7
- Views: 1047
Re: Voltage reading in Display Cable, please advise. BBS02B
Some people use the USB programing cable for troubleshooting display/dashboards. It connects to the display plug and jumpers power ON pins without the risk of applying B+ to the comm wires.
- Oct 01 2017 9:05pm
- Forum: EBike Non-hub Motor Drives
- Topic: BBSHD 21h error code and its "5 minute ride"....
- Replies: 19
- Views: 5919
Re: BBSHD 21h error code and its "5 minute ride"....
No harm and if you want to prevent it from powering OFF disable the "auto-off" feature under display/dash settings.doubledipsoon wrote:Voltron, so if I choose to run this baby in this inconvenient manner, and keep re-turning it on, over and over and over again, am I doing it any harm?
- Sep 30 2017 9:23am
- Forum: EBike Technical
- Topic: Rear Wheel Battery
- Replies: 3
- Views: 1098
Re: Rear Wheel Battery
I believe hub mounted battery pack is one of the dumbest things ever attempted for eBikes. Give 'em credit for trying but seriously, what a mess when something goes wrong.
- Sep 28 2017 10:07am
- Forum: EBike General Discussion
- Topic: Ebike brakes
- Replies: 41
- Views: 5955
Re: Ebike brakes
One trick I've learned over the years is that it's often possible to cut open the supplied levers, remove brake switching guts and somehow rework them to whatever levers we need to use.
Hot glue to test positioning of the components and then seal the deal with some Epoxy.
Hot glue to test positioning of the components and then seal the deal with some Epoxy.
- Sep 28 2017 10:02am
- Forum: EBike General Discussion
- Topic: What soldering iron do you use for soldering ?
- Replies: 18
- Views: 2488
Re: What soldering iron do you use for soldering ?
Don't need Watts/heat as much as Mass/amount of heat. Hammerhead tips are much harder to find nowadays but check these images to get an idea of large tips (some DIY) which allow soldering heavy gauge wire, connectors and battery tabs: https://www.google.com/search?q=soldering+iron+hammer+head+tip%5B...
- Sep 28 2017 9:52am
- Forum: EBike General Discussion
- Topic: Differences between different 1000w 48v hub motors
- Replies: 7
- Views: 4444
Re: Differences between different 1000w 48v hub motors
It also depends on the calibration of your speedo. But 35 mph, no wind, maybe even slightly downhill but not enough to see it, is plausible when your battery is full, and 58v with low sag, and if your controller is a 30 amps controller. 58v x 30 amps is 1500 amps after all, with sag very likely you...
- Sep 27 2017 9:03pm
- Forum: E-Vehicles General Discussion
- Topic: Dyson EV
- Replies: 31
- Views: 5819
Re: Dyson EV
We recently bought Dyson cordless vacuum - wife and I very impressed and totally satisfied. If they ever do EV's we'll take a serious look. Is there Dyson "hype"? Of course, but the product we bought is actually pretty well thought out and a much better cordless vacuum than the Bissell cor...
- Sep 23 2017 6:44pm
- Forum: EVents
- Topic: Interbike 2017, Las Vegas, Sept 18-22 (Mon-Fri)
- Replies: 52
- Views: 10961
Re: Interbike 2017, Las Vegas, Sept 18-22 (Mon-Fri)
Thanks for the video Luke - enjoy your trip!
- Sep 23 2017 11:57am
- Forum: EBike General Discussion
- Topic: How do you carry groceries on your ebike?
- Replies: 52
- Views: 5523
Re: How do you carry groceries on your ebike?
In addition to carrying groceries I can stuff up to 2000Wh battery under the tub and ride crazy distances….
- Sep 23 2017 11:14am
- Forum: Battery Technology
- Topic: What is the "Light Weight" go to "Hobby" Lithium packs
- Replies: 43
- Views: 5437
Re: What is the "Light Weight" go to "Hobby" Lithium packs
Good to see you Tommy L, ‘wondered what you were up to? Sorry about the missus - I hope your touring gig doesn’t take you too far for too long? I still use combinations of 20C 5Ah RC Lipo with a cheap/small eBay BMS installed for charging only. While discharging the bike LVC will probably catch anyt...
- Sep 11 2017 10:12am
- Forum: EBike General Discussion
- Topic: 800W Q128c commuter build
- Replies: 80
- Views: 16351
Re: 800W Q128c commuter build
if the clutch is sticking, I'll guess/predict one of the roller springs ground down and became wedged between roller/drum. Akiema used springs more suitable for ballpoint pens than a bicycle motor, IMO. I eventually found some much hardier, heavier gauge springs which slowed this problem down but ev...
- Sep 08 2017 10:35am
- Forum: Battery Technology
- Topic: How can I discharge a 36v battery pack
- Replies: 11
- Views: 2064
Re: How can I discharge a 36v battery pack
Take the element out of an old 2000w heater and dump the power into that. it'll probly run near 6-700w (assuming you're on 110v) if that's too high choose a lower wattage one. Put it in a bucket of water if it needs cooling or blow it with a seperate fan. Old school kettle would probly work too. Pl...
- Sep 06 2017 12:03pm
- Forum: EBike General Discussion
- Topic: Kit recommendation for hilly commute
- Replies: 15
- Views: 2210
Re: Kit recommendation for hilly commute
BBSHD is the tool for this job, IMO. I see "measurable" chain wear/stretch around 1000 miles. New chain ($12 8spd) at 1st sign of wear to save the more expensive sprockets. Yes, carry a chain breaker and couple master links in case of chain suck and it damages the chain plates and breaks. ...