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Its a Sanyo. It also says rabbit tools usa in the side. I've found out that it is a torque sensor. There is a self test you can do with the handlebar controller that allows you to test the hall sensors and torque sensor The more pressure you put on the pedal the more leds light up on the...

Hopefully the charger will work once the mosfet has been replaced, if not could probably fit a 7s bms and then use a generic charger. The battery pack only has a 2 pin output so seems normal. I've checked around and the cheapest I can find a standard charger is 70 euros from holland, I dont...

Just picked up my own ebike today. Giant twist express rs2. Was listed on ebay as not charging after being stored for 2 years in his shed. I was expecting the battery to be scrap after being stored for so long however when I got it home it turned on fine. I checked the pack and it was at...

Thanks. Managed to sort it. You were correct it was a menu setting. Setting p3 has 2 options 1 or zero. It was set to one I changed to zero on the speed reading now works from the front sensor. Below is a photo of the display I have its very basic with just 4 parameters to adjust

Recently installed a brainpower controller but as the hub didn't have a speed sensor white cable from the hall sensors in the rear hub we only get a speed and distance reading while the motor is running. I've bought a 3 wire speed sensor kit off ebay with a spoke magnet. I attached the sensor...

Sorry I'm a newbie with this sort of stuff I would have to check the wiring diagram to see if it was suitable. I think my bms had 11 thin cables 1 negative and 10 positive also plus a ihad to solder on the battery negative negative output and and negative charger cable

Well I got tired of waiting for the cell holders to be delivered and went ahead last night with glue and heat shrink. Started at 10pm and finished around 5am Did have a few brews though and also wasted time having to find a wiring diagram for my bms. Also had to wait for the bodged up spot...

OK I've sorted the cells out now and they are all equal. I decided to go with the square type cell holders as there is enough space for them, I carnt build the pack yet as I'm still waiting for the nickel strips the cell holders. I think the bms will arrive today but I've also bought so...

Yes fogstar Ive already started charging, should a discharge the 8 I've done so far back to 3.6?

Well I received my cells this morning, 24hr uk delivery so really good. I've tested all 42 I bought and they are all sat at 3.6v exactly. Before I start building the pack I'm going to fully charge them individually. I've just got to wait for my nickel strip

Roughly how much do these spacers increase the pack size. I want to keep the pack inside the existing battery holder and I'm already going from a 3p pack to a 4p pack which there is space for inside the holder if I remove some of the foam packers that are around the existing pack. I've seen 2...

I've ordered some 0.2mm 8mm nickel strip and was going to double up the series connections. From the info I've found online the controller is rated at 15a and and it says 250w however a max or 540w. Sorry the bike is a powa cycle Milan 2 not a powa byke. On there website they say it has a...

Hello all. I'm just ordering all the parts to build my first ebike battery. So far I've ordered 40 LG m29 cells rated at 10a continuous discharge, and a 20a continuous balancing bms. I'm going to make a 36v 10s4p pack to replace the battery in my missus powabyke Milan 2. The current pack...

I couldn't find the exact cells online. I took a photo of them in my first post. The 4.06v group are now fully charged but while it's apart I think I will charge each row individually to give its the best chance of working. I will also make a external test point so I can watch the voltage...

Used to race model cars so still have my old multi charger so it comes in handy

I've set my charger to 3.7v lipo pack and amps to. 2a it will auto cut off at 4.2v would you still recommend using a old phone charger instead of a dedicated charger like I'm using?

Yeah I know its probably had it now due to age I just wanted to know if a. 14v difference in voltage was a significant imbalance. I just made a 36v lead acid battery to test the bike with some np17s I had lying about and the bike seems to operate fine with that. I might solder on a couple of...

Hello I found your forum after googling about battery issues on my mrs ebike. We bought it used last year very cheap, it was sold because it cuts out occasionally on hills. My Mrs used it a few times but it only cut out once or twice as she is a bit lighter than the bloke we bought it off. It...