Battery charging Question
#6
Tech Master
what are you going to do with it? allot of those are for motorcycles and lawnmowers. the cheaper ones done have electronics in them and it looks like your doesnt. search for BMS or battery management system on ebay. get 1 that does the amperage at 4s. it should be super cheap. then you can use any charger you want including an alternator on a motorcycle or car or …
the better/newer ones have an integral BMS. but china has taken the tech and sells it as a standalone green board.
the better/newer ones have an integral BMS. but china has taken the tech and sells it as a standalone green board.
#7
This one has an internal BMS.
#9
2 different website have specifications for this specific battery:
An internal battery management system (BMS) ensures all cells are uniformly charged and discharged, as well as providing short circuit, over current, and reverse polarity protection. This provides you with a higher degree of protection than a traditional lead acid battery which is unprotected, and can discharge rapidly under short circuit conditions, causing fire and damage. The internal BMS will also limit discharge and manage cut-off voltage, to further protect the internal cells.
Can still have a BMS and use CC-CV charging.
An internal battery management system (BMS) ensures all cells are uniformly charged and discharged, as well as providing short circuit, over current, and reverse polarity protection. This provides you with a higher degree of protection than a traditional lead acid battery which is unprotected, and can discharge rapidly under short circuit conditions, causing fire and damage. The internal BMS will also limit discharge and manage cut-off voltage, to further protect the internal cells.
Can still have a BMS and use CC-CV charging.
#10
Tech Champion
iTrader: (2)
2 different website have specifications for this specific battery:
An internal battery management system (BMS) ensures all cells are uniformly charged and discharged, as well as providing short circuit, over current, and reverse polarity protection. This provides you with a higher degree of protection than a traditional lead acid battery which is unprotected, and can discharge rapidly under short circuit conditions, causing fire and damage. The internal BMS will also limit discharge and manage cut-off voltage, to further protect the internal cells.
Can still have a BMS and use CC-CV charging.
An internal battery management system (BMS) ensures all cells are uniformly charged and discharged, as well as providing short circuit, over current, and reverse polarity protection. This provides you with a higher degree of protection than a traditional lead acid battery which is unprotected, and can discharge rapidly under short circuit conditions, causing fire and damage. The internal BMS will also limit discharge and manage cut-off voltage, to further protect the internal cells.
Can still have a BMS and use CC-CV charging.
#11
this battery is bot intended for a motorcycle it is a powerwheels battery. it gives all details on side label 4 cells at 3.7 volts max at 3 amps do some online checking on life or A123 cells
#12
Tech Master
if it requires external cc/cv it doesnt have the type of BMS that it should have. A bms on an automotive lithium based battery is designed to take alternator/generator power and condition it for the battery to not need another charger.
for example. most people will not use a lithium based battery on a motorcycle. they are half the weight, retain voltage much longer than lead acid, dont need to be topped off….there is a huge list of advantages and 1 main disadvantage. Originally none had a BMS and had to be charged by a cc/cv charger. you can still get them without the BMS. Motorcycle guys still read all the posts out there of horror stories posted on the internet and are waiting for a new technology that manages the cc/cv charging. what they dont realize is the BMS is designed to do that. I run a lithium battery on my motorcycle. it has a BMS and is charged from the alternator. Ive been running it this way for years. something weird here.
If it says cc/cv then thats what I would use. But you could get a BMS that can handle the cc/cv externally to charge it properly or just get a cc/cv charger like we use in rc.
for example. most people will not use a lithium based battery on a motorcycle. they are half the weight, retain voltage much longer than lead acid, dont need to be topped off….there is a huge list of advantages and 1 main disadvantage. Originally none had a BMS and had to be charged by a cc/cv charger. you can still get them without the BMS. Motorcycle guys still read all the posts out there of horror stories posted on the internet and are waiting for a new technology that manages the cc/cv charging. what they dont realize is the BMS is designed to do that. I run a lithium battery on my motorcycle. it has a BMS and is charged from the alternator. Ive been running it this way for years. something weird here.
If it says cc/cv then thats what I would use. But you could get a BMS that can handle the cc/cv externally to charge it properly or just get a cc/cv charger like we use in rc.
#14
isnt life cell full charge 3.7 so 4 x 3,7 is 14.8