Duo PWM - seperate battery types

Q&A and troubleshooting
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1

I think ive made a mistake but im not sure. I have a BlueSolar PWM Charge Controller (DUO) with output 1 connected to a lithium battery and output 2 connected to a starter battery which is lead acid. The Duo was purchased to attempt to keep both batteries charged while the motorhome is not in use for extended periods of time. Im watching the charge voltage across both batteries and wondering if the lead acid battery is being charged with the same profile as the lithium battery.

can anyone provide any information to me if I can have 2 different battery chemistries (lead acid and lithium) connected to the duo charger?

2

It can charge two separate batteries, but not with separate profiles. It’s not really an issue though, any Pb battery should be fine being charged with the LFP (b04 for 12vNom) profile.

1 Like
3

Thanks for the confirmation. have a good day