Hi all. So I looked at a few LiFePo4 manufacturers websites, and saw several that list pretty clear limits on series/ parallel connections, mostly due to voltage I assume, but most (including battle born and power queen) state that there is no theoretical limit to the number of batteries you can have in just parallel (no series) for the batteries themselves.

I imagine the limitations would come from wire sizes, fuses, busbar combinations..?

For my specific scenario, I am looking at 200 AH 24V (25.6v technically) batteries with 200 amp BMS rated at 200 amp max continuous discharge and 100 amp max continuous charging per battery, and using the lynx power in to parallel the batteries under the busbar method, and fuse each one.

Questions: If the lynx power in/shunt/ distributer is rated at 1,000 amps, is it safe to assume that five if these batteries is absolute max, or, since I don’t forsee getting anywhere close to 1,000 amp draw at any given time, can you go past five of the above batteries in parallel on the lynx system( with a second power in bolted in line for 5th batteries- so Power in, power in, shunt, distributor, distributor)? (Also assuming all batteries are identical of course)

I’ll have each battery individually fused. Using the lynx system I don’t see how to add a master cutoff switch for the battery bank, especially using busbar method with the power ins, so I assume I would add a victron/blue sea cut off switch for each battery before they connect to the power in…? Especially since each battery will have 200 amps at 24 volts. Safer to be able to isolate each one individually I’d think.

Silly question, I saw a massive 24 volt system this guy did. Duel quttros, auto transformer for 240, and every other blue box you could name. What I thought was odd was he had red and black battery disconnects- both positive and negative battery cables had blue sea battery disconnect switches…. Is there a reason for this? A pro or a con to do that? Is it safer or somehow more dangerous? Why would you need to disconnect both the positive and negative/neutral lines of a battery bank? Or is it just overkill for overkill sake?

Thanks!! 😊