Hello everyone,
I have a makita 7,2v drill with ni-cd batterys.
All the batterys made for the drill are all dead.
So i taught i could but a 2s2p 18650 pack in the drillso i did.
There is enoughroom for a bms and a charger.
So i ordered a bms from aliexpress:
After i received it i wire it in the drill exactly as the diagram shown.
NOTE: i did not wired the drill on the power output of the bms it can only handle 2 amps or less.
the drill was connected directly to the pack.
But after a couple of days i checked the voltages of the groups ofcells and they where still the same.
After a couple of weeks still no balancing. So i begin thinking i had a faulty bms, So i ordered a different bms
EDIT: the voltage of the battery's where 3,87V 3,96V
This one but the same fault, Do i something wrong or was i just unlucky a second time?
Maybe someone can suggest a good bms for a 2s battery pack.
Thanks in advance,
Greetings Lux.
PS. If i will get back to my solar powerwall some people really liked the solar bitcoins
I have a makita 7,2v drill with ni-cd batterys.
All the batterys made for the drill are all dead.
So i taught i could but a 2s2p 18650 pack in the drillso i did.
There is enoughroom for a bms and a charger.
So i ordered a bms from aliexpress:
After i received it i wire it in the drill exactly as the diagram shown.
NOTE: i did not wired the drill on the power output of the bms it can only handle 2 amps or less.
the drill was connected directly to the pack.
But after a couple of days i checked the voltages of the groups ofcells and they where still the same.
After a couple of weeks still no balancing. So i begin thinking i had a faulty bms, So i ordered a different bms
EDIT: the voltage of the battery's where 3,87V 3,96V
This one but the same fault, Do i something wrong or was i just unlucky a second time?
Maybe someone can suggest a good bms for a 2s battery pack.
Thanks in advance,
Greetings Lux.
PS. If i will get back to my solar powerwall some people really liked the solar bitcoins