Hello,
I understand for a 48V system the max number of LiFePO4 Battery 12,8V/300Ah is 20 units (4 series by 5 parallel). For a PV system that requires 220kWh in battery bank can can I use multiple sub battery banks of 20 units?
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Hello,
I understand for a 48V system the max number of LiFePO4 Battery 12,8V/300Ah is 20 units (4 series by 5 parallel). For a PV system that requires 220kWh in battery bank can can I use multiple sub battery banks of 20 units?
For a battery bank with such a capacity I wouldn't use Victron batteries, they are too expensive.
The 12,8V 300Ah Victron battery has a price of 880€/kWh(price list + VAT).
A BYD B-Box 13,8 has a price of around 500€/kWh(average price I found quickly with google in German shops).
If you want a big battery bank, you really should be using batteries designed to be used in such a big bank, including things like cell balancing and monitoring, you can't just put lots in series/parallel and hope that they'll work. For example, the BYD LVL Premium 15.4 is designed and verified for up to 64 batteries (about 1MWh) and also costs a lot less than the Victron batteries.
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