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Ho all. Recently bought one. But the battery has been removed from case along with bms. I've wired another battery in that powers it but battery indicator on screen shows 0. Guessing the bms tells the bike the battery info. Anyone know where I can get a bms board from or is there a way round it.

any one any ideas. so just reprogrammed a bafang hd, used the software and update supplied. (did one few weeks back no bother) so when i finished set it away and the throotle is only spinning the wheel at 6 kmh, the last one i did was fine. the PAS is working perfect loads of power. anyone...

just converterd my first fat bike, the original plan was for a 5000w rear wheel. but after i bought the bike and saw it had thru axles that plan went out the window. so i ended up puting a bafang 750w mid on it. its a 100mm bottom braket, but waether experance or being caught out with...

https://www.ebay.co.uk/itm/163886071696?ul_noapp=true so when you buy it, if you want full power you sign a disclaimer and get sent a code. now looking at it, it looks like the okfeet gp which the do in a 36v 500w. so i would defo say not legal, as im guessing that all it is, is restricted...

so luna have them in again, so ive ordered a one. anyone know or recommend what you can change or sup up on a 750w, or know where theres more info on the preset programmes.

good evening all so i bought a new toy to mess with, to save time on testing cells. the trouble is the instructions tell you how to work it, but little help on what settings to put in on cycle tests. has anyone use, or have any experience using one. what i want to do is charge fully -...

hello all. so just got a new type of case to try but the off/on switch wires seem stange. the black and red are quite thin, they go to the led power indicator and then to the of and on switch. does anyone have a clue where they wire to. theres only 2 wires that are very thin. thanks

so i'm trying to get an old chap a 20 inch 36v 250w rear wheel kit with an lcd, cant seem to find any apart from china. plenty of front but no rear. any ideas thanks

does anyone know if they have shut down. tried the number and it saying no connected, also sent some messages. the reason is i'm trying to find a 250w rear wheel 20 inch kit but not having much luck, only can find in china. any ideas

yes ive been playing and working out. so we have the smaller 36v and big brother 48v. both with on and off switch, xlr female charger ports, xlr male power out ports. and led power indicators. i'm really happy with them, ive also made a couple of straps but will have to decide weather to fix...

so using my new test on cells i made a 8.5A 36v. i used Sanyo cells all between 1700 and 1750mAh. decided a proper test was in order. give it a bit hammer so to speak. been on on the mountain bike with a bafang 250w mid drive. where i live is a bit hilly. so i did just under 12 miles in 45...

so ive just built my first battery out of used cells (50 Sanyo) its 8A plus so i put the cells through what i think was a harsh test and these 50 were passes. all the cells had 1800 to 1850mAh. that battery has charged to just under 42V. i have a bafang 250w mid drive and was thinking 10...

so on building a battery put the BMS board in and it didnt work. output vault age was wrong and it wouldnt charge. changed the board and straight away no proble. double checked the wiring diagrams on the board that didnt work and it didnt add up. contacted the seller and ended up more baffeled...

Oops first big mishap lol so building a battery today new Samsung 2600mAh while i was doing the spot-welding was getting the other wires ready, stripped soldered ect. so started putting the wires on the cells. now i'm not 100% sure what happened, but i think one of my live connected with a...

has anyone got one. ive tried and searched and can not figure out how to use the discharge mode on it. anyone no how thanks

not sure if this is the right place to post but i'm sure someone will move if not. so i built the full suspension B-Twin last year it had a bafang 750 mid drive and flew. first time out on a steep gravely hill, came of. hurt myself, worsted was the ripped tendons in my knee. so a few weeks ago...

this may be of interest for someone who has similar issues, so today i at last received the correct screen for my 250w 700c rear wheel, its a kt lcd3 screen. so i put it on span the bike wheel and thought emmm i dont think its doing 43mph lol. anyway did some googling and found out that it may...

so ive been reading up on cells amp discharge ect. but cant figure out why you need to use flat top batterys. why do you not use button top. is there a reason? i ask because button top seem to have higher capacitys and are often cheaper.

please read carefully so theirs no mix ups so first the bike, its a DDG Mutha Frame that i bought new. air suspension. sadly when i built it i didnt like it, so took it back to bits. being moved around the garages ahs caused marks on the frame so i am classing as used now. all parts used are...

please read carefully so theirs no mix ups so i had a new 250w kit left from another project. also a 15am 48v rack battery. so i but it on a used medium carrera vulcan. the bikes in decent condition for its age. 5 levers of assist and a throttle. Its been set at 250w and and the speed is...