can I use this charger for my 4 Battle Born batteries?

[marcfest]

I've got the ExpertPower 12V 20A Smart Charger for Lithium LiFePO4 Deep Cycle Rechargeable Batteries. I've got four 100 Ah 12V Battle Born Batteries. I've used the expert power charger to charge up a single Battle Born before. Can I also use it to charge all four batteries at once (connected 2S2P)? Thank you.

 

[Charleswgibbs]

It appears that charger is only for a 12v battery. It will charge them individually but if you connect them 2s2p you'll have a 24v bank and that charger won't work.

 

[marcfest]

It appears that charger is only for a 12v battery. It will charge them individually but if you connect them 2s2p you'll have a 24v bank and that charger won't work.

Thank you! What kind of charger would work? Would it have to be a 24V charger, I suppose?

 

[marcfest]

Just ordered the Victron Energy Blue Smart IP67 24-Volt 12 amp Battery Charger (Bluetooth) 120V

I think it's what I need for my 24V 2S2P config...

 

[Charleswgibbs]

Just ordered the Victron Energy Blue Smart IP67 24-Volt 12 amp Battery Charger (Bluetooth) 120V

I think it's what I need for my 24V 2S2P config...

Should work perfect! Although at only 12a it might be a bit slow to charge, as your only charging at about 300w. Should take around 16 hours to charge fully if the bank is totally dead.

 

[Substrate]

Just a note about the ExpertPower EPC 1220 - it is one of the few among the bunch that purposely has a slightly lower CV of 14.4v vs just about all of the rest that are higher at 14.6v. The lower 14.4v is still high enough to trigger bms resistor bleeders. No lead acid features like float. BMS reset.

Might not seem like much, but I liked the slightly lower CV of the ExpertPower - which *could* help keep a runner inside say a sealed drop-in that likes to trigger a bms disconnect.