foxxxnick wrote:
If I have a 12vdc 100AH battery that has a BMS in it that is 100A max discharge, does this mean if I parallel two of them together I can do a max 200A discharge now?
I want to make sure my BMS will support my batteries and the discharge rates that will be necessary for my TT.
Thanks
StirCrazy wrote:foxxxnick wrote:
If I have a 12vdc 100AH battery that has a BMS in it that is 100A max discharge, does this mean if I parallel two of them together I can do a max 200A discharge now?
I want to make sure my BMS will support my batteries and the discharge rates that will be necessary for my TT.
Thanks
yes. but make sure you get the same brand battery that has the same model bms so you know they will be compatible.
for fusing, I don't know if I would be that restrictive. What battery do you have? some BMS will have an overdraw capability that will exceed the rated output for a time. You need to have that factored into your fuse size also. By caping it at one hundred amps you're restricting the battery rather than protecting it and you could have false fuse pops a lot.
The batteries are rated to a 5C discharge although you don't want to do that and for max life, we limit that to 1C usually, so you need to know what the BMS in the battery is capable of to properly select a fuse size. So not knowing what BMS you have I would say to use 125 to 150amp resettable brakers or fuses to protect the individual batteries. This is high enough that it won't interfere with the BMS function but low enough it will protect the battery.
Steve
