December 7, 201213 yr Hi guys! I'm new to this forum and am looking for some help. Basically i built a custom bike with a rear wheel 48v 1000w wheel powered by a lifepo4 48v 30ah battery. Things were good for about a year but then one day it stopped working. So not knowing about ebikes i irdered a new controller. Once i connected the controller it still didn't work and after some investigation i found that the bms had gone! I found this out by opening the bms case and the board was giving a funny smell and some of the diodes/chips had blown, visibly i could see scorch marks on the board. So i ordered a new bms and once arrived i connected the bms up and it still didn't work. I then ordered a new wheel kit consisting of new controller, new wheel and new throttle and brakes. I have now connected this up to the bms ready to take power but nothing! So then realised i had not charged the battery for at least 8 months so i tried charging the battery through the new replaced bms and once i connected the charger, it blew up. So i have today received my new charger (48v 5amp). It has now been plugged in for over 6 hours and on the charger both green and red lights are on. Even when i unplug the charger from the bms the charger still has green and red lights on. So hopefully will check in the morning to see if it has charged or if charger lights have changed after 12 hours. Just in case it doesn't do u think its advisable to plug the charger directly onto the battery bypassing the bms? This is really doing my head in. I'm based in birmingham west midlands and would appreciate it if someone could tell me how to fix it. Or if local i could drop it off or get someone to come round and check it. I really don't wanna throw it all away as i have spent in excess of £1500 on the bike so far and it would be a shame just to bin it. Please help i am contactable on azzkhan (at) yahoo (dot) co (dot) uk. Hope to hear from some one soon. Regards Azz!
December 7, 201213 yr If you can get it to Telford, I'll fix it for you. The charger won't charge unless the LEDs are both red, so no point in leaving it on. You need to ckeck the voltage on the charge socket on the battery before going any further.
December 7, 201213 yr Author If you can get it to Telford, I'll fix it for you. The charger won't charge unless the LEDs are both red, so no point in leaving it on. You need to ckeck the voltage on the charge socket on the battery before going any further. Great! Do you have an email or phone number i can contact you on? Mine is azzkhan@yahoo.co.uk Thank you ever so much. Hope to hear from you soon mate!
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