Orion smart 12:12 30 charging question

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alandr asked Feb 27, '23

Orion smart 12:12 30 charging question

Hi,

I have a T6 campervan with an orion 12:12 30 installed. It's charging 2 Lead acid leisure batteries but after driving for over 4hrs the batteries don't appear any more charged.

Is this expected and how could I check it? (Also the fridge was on during the drive and for an hour or two after I got home).

Before 12.3v which is pretty low to start with.

after what I was expecting to be a thorough charge the voltage was sitting at 12.33v... Any thoughts? Thanks Al

battery charging orion-tr smart

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Answer 1 · 2023-02-28T08:13:27Z

JohnC answered · Feb 28, 2023 at 08:13 AM

Hi @AlanDR

What I see there is pretty normal. 12.3V isn't so bad if the batts are cold. They seem to have got a decent charge. Not a long Absorb time, but ok for batts in a good state. Good long Float, and came out like 12.6V, all good. The downward spikes after suggest a load applied in short bursts, and have drawn V down a little each time. Perhaps your fridge, maybe you forgot to turn it off?

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alandr commented · Feb 28, 2023 at 09:10 PM

Hi, Thanks. I guess I am comparing it to when I use the hookup charger, another victron. After that the batteries appear to settle at a higher voltage and stay there for longer. (I.e 4hr drive charging from the 12:12 30a Vs 4hr plugged in the plugged in which is 20a seems to do a better job).

Also, yes I think you're right the little drops in voltage are the fridge kicking in and I must have left it on for a while.

Thanks again

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