I installed 2 Battle Born 100ah 12v batteries, ~Aug, 2018, wired in series for 100ah 24v system. In Jan, 2020, I added 2 more batteries in a 2s2p config for 200ah 24v system. Last summer I added 2 more [2s3p] for 300ah 24v. I'm still running out of power when I watch movies all day [HD projector system], so I want to add more. However, I can't afford any more Battle Born batteries! They are down to $799 at Amazon [from the $949 I paid], but there are several brands offered now that are much cheaper, such as Ampere Time, for $374 [less than 1/2 price!].
Can I safely add these batteries to my system as a new 24v 100ah "segment" to get a 24v 400ah system? Would it be better to get a single 24v 100ah battery [$819], or stick with two 12v 100ah batteries [2x$374=$748] wired in series, then add whichever to system in parallel?
Is there a better brand that is still significantly cheaper than BattleBorn?
Can I safely add these batteries to my system as a new 24v 100ah "segment" to get a 24v 400ah system? Would it be better to get a single 24v 100ah battery [$819], or stick with two 12v 100ah batteries [2x$374=$748] wired in series, then add whichever to system in parallel?
Is there a better brand that is still significantly cheaper than BattleBorn?