Recent content by pauldo

Ok i have another meter that say's 3.68v while charging. Anyway it does not seem to be balancing,it only turns off and on and the other cells do not catch up. How do i manually discharge dogman dan wrote: Contact those two wires to the terminals of the cell you need to discharge, if you have...

I cannot get to the individual cells,how do i discharge through the bms,do i use the 2 sense wires that i detect the high voltage. Thankyou Paul

Does this bms balance, http://www.aliexpress.com/snapshot/6290240442.html?orderId=64171138909262. I have 12s 5p. lifepo4 It seems to turn off when 1 cell gets to 3.65, the other cells are from 3.4 to 3.55. When the top cell goes down to 3.5, the others are 3.25 to 3.4, the bms chargers again...

It is already at 43.1 by my multimeter

Not at the moment

I have a 12s 5p lifepo4 pack. I charge through this bms http://www.aliexpress.com/snapshot/6290240442.html?orderId=64171138909262 The charger is http://www.aliexpress.com/snapshot/6486119718.html?orderId=65738565059262 it has 43.1 volts at the pin by my multimeter. When the batteries get to 3.3...

My mistake it is 12s What output do i need.

Would there be any problems using a li-ion charger on a 36 volt 16s 15a lifepo4 pack with bms. Charger is 42 volt, 1.8a. Thankyou Paul

e-beach like i said previously it only went as far as 0.8v then dropped back to 0.4v while still on the charger.

e-beach,i charged the cell individually like your earlier post. I thought the bms lvc would cut out when any cell dropped below 2.0v or what ever it is.

Ok,i do not have the battery connected at the moment to the bms,the one cell does not charge. Also why does the motor start through the bms on 15s.

I do not know how to test the shunt transitor,but i was just thinking,the motor still runs on 15s,should it not shut down the bms because 1s is dead.I have pulled the pack apart and tried to charge the dead cell,it only goes up to 0.8v then with the charger still on drops back to 0.4v.

I have a dead cell. vpower tell me they are 26650 3.2v 3000mah batteries. I need 7,vpower want $10usd each plus delivery,i am considering my options

Please be patient,i do not even know what a shunt transistor looks like,can you see it on this board

because 7 have no voltage