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Oleksandr avatar image

RS 48/6000 and Pylontech batteries (how many?)

Hello everybody,

I have an offgrid installation with RS 48/6000 and 2x US2000 Pylontech batteries and I am wondering if two batteries is enough.

I can see that Victron has suggestion on how many batteries one needs for a properly functioning system depending on what Inverter/Charger one has. But the latest RS 48/6000 in not on the list!

It would be greatly appreciated if someone can provide any suggestions on how many Pylontech batteries are needed in a system with RS 48/6000.

Regards,

Alex

offgridPylontech
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1 Answer
wkirby avatar image
wkirby answered ·

Inverter RS has the followin parameters that we need to pay attention to:
5300W maximum continuous output @ 25°C
9000W peak output for 3 seconds.

Pylontech battery has a maximum continous output of 1200W and 4800W peak (15s).

So, five Pylontech US2000 batteries would be a good match for the Inverter RS.
5x US2000 batteries gives you 6000W continuous and 24000W peak (15s).

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Thanks a lot, WKirby! Very well explained the logic behind.

I would be grateful if you can also consider the following question - if I know 100% that I will never use more than 2000W continuous, do you think I can get away with just two batteries (1200W*2 > 2000W)? Will the system be exposed to any other shortcomings in that case?

Many thanks and kind regards,

Alex

If you are 100% sure the of course you can use fewer batteries.
In that case you should also ensure that the charging current is limited to the maximum that two batteries can withstand, 50A maximum for two batteries.

Hi @WKirby,

Great! Thanks for your comment!

Regards,

Alex