What is the max Amps I can charge my 300Ah LifePo4 bank and can I use 2+ chargers?

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ben-battery asked Dec 10, '20

What is the max Amps I can charge my 300Ah LifePo4 bank and can I use 2+ chargers?

I have a bank of 3 x 100Ah Victron Lifepo4's all connected with a shunt, a BMS, bmv 712 and a battery protect 12/65 for charge protect. Atm I have the victron 10A and 30A chargers connected via the BP12\65 in parallel to (hopefully) get 40A of charge.

I am looking at swapping the 2 chargers for the new Phoenix 50A charger but was wondering what the max Amps was that I can charge my back with and if there was any risk in leaving the 10A charger connected to give 60A?

Does 2 chargers mess with the Bulk, Abs, Float cycle? I presume not as most of us have solar with MPPT too which is similar?

Lithium Battery Phoenix Inverter charge current limit

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Answer 1 · 2020-12-10T08:41:49Z

Matthias Lange - DE answered · Dec 10, 2020 at 08:41 AM

The datasheet says that you can charge the 100Ah battery with max. 200A (150A recommended).
So you can charge you batteries with up to 600A (450A recommended).

https://www.victronenergy.com/upload/documents/Datasheet-12,8-&-25,6-Volt-lithium-iron-phosphate-batteries-Smart-EN.pdf

There should be not problem with using the chargers in parallel.

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