2 batteries in parallel: double max charge current?

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question

tr001 asked Mar 17, '21

Dear Victron community,

I currently charge 1 SiO2 battery (max charge current 25A) with a Victron Orion-Tr Smart DC-DC charger 12/12-18.

Can I double the charge current if 2 of the same batteries are wired parallel?

The idea is to use 2 SiO2 batteries in parallel with the Victron Orion-Tr Smart DC-DC charger 12/12-30.

Thank you!

battery charging orion-tr smart

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Peter Buijs - NL answered · Mar 17, 2021 at 09:29 PM

When the 2 batteries come in to service at the same time it is no problem

When the 2nd battery is added to an existing setup this might be a problem, depending on the age of the first battery

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Answer 1 · 2021-03-17T21:59:42Z

tr001 answered · Mar 17, 2021 at 09:59 PM

Great, thank you Peter! It will be two brand new batteries of the same brand and size. Cheers

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