Hello,
As my first lithium battery project, I'm going to build a LiFePO4 1P4S battery to replace the original 12V14Ah 260A CCA lead-acid motorcycle battery.
Basically, I only need to battery for starting the engine. After that, the alternator will keep it topped up and provide the power for the auxiliaries.
Since the starter motor power draw behaviour is a bit different than for solar banks, I'm not quite sure which BMS would be suitable.
The old battery had a CCA rating of 260A. If I would take that value, I would need a big beefy Daly 250A BMS for my tiny 7Ah cells, which does not make sense. But if I assume that the starter motor draws 200A for a split second on startup, will a 40A (constant current) BMS blow up? Will a 20A blow up?
Thanks in advance!
As my first lithium battery project, I'm going to build a LiFePO4 1P4S battery to replace the original 12V14Ah 260A CCA lead-acid motorcycle battery.
Basically, I only need to battery for starting the engine. After that, the alternator will keep it topped up and provide the power for the auxiliaries.
Since the starter motor power draw behaviour is a bit different than for solar banks, I'm not quite sure which BMS would be suitable.
The old battery had a CCA rating of 260A. If I would take that value, I would need a big beefy Daly 250A BMS for my tiny 7Ah cells, which does not make sense. But if I assume that the starter motor draws 200A for a split second on startup, will a 40A (constant current) BMS blow up? Will a 20A blow up?
Thanks in advance!