Quick battery question

[WESTY66]

I am in southern Austria at moment and my battery readings are all over!
I have 100w Solar Panel and the Controller has battery 1 light and battery 2 light, and the Moho panel with a leisure reading. Battery 1 light is on yellow (running down) battery 2 light is flashing green (fully charged) and the Moho panel says leisure battery 0% or 12.1v. The tv turned itself off last night, I presumed down to low batt1. Question is Do dual batteries go down at same level or does one go flat then the other? Is battery 1 on its way out? And im presuming my Moho panel doesn’t have a clue it’s got 2 batteries fitted, sorry to be so thick but electrics are a dark Art to me.

 

[RowleyBirkinQC]

Electrickery is a dark art to me too, but I’ve seen it stated multiple times on here that a ‘bad’ / failing battery can drag down a second ‘good’ battery.

 

[WESTY66]

Electrickery is a dark art to me too, but I’ve seen it stated multiple times on here that a ‘bad’ / failing battery can drag down a second ‘good’ battery.

Sorry I maybe should have worded the first question better, what I meant by both going down at the same level was down to usage, not necessarily because one is faulty or about to expire. I can Give it an analogy akin to gas bottles, if they’re both open and you use the gas, the levels go down the same in both bottles, if one has an auto changeover, one bottle goes empty then the second, does that make sense?

 

[Lenny HB]

Battery 1 & Battery 2, I think refer to starter battery and habitation battery.
Sounds like your hab battery has had it. If you have two in parallel one duff one will drag the other one down.

 

[Jev88]

Get some disconnected battery readings with a multimeter for starters. Should show you if both or one are kaput.

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[WESTY66]

Battery 1 & Battery 2, I think refer to starter battery and habitation battery.
Sounds like your hab battery has had it. If you have two in parallel one duff one will drag the other one down.

Im pretty sure both 1+2 wires run down to the two leisure batteries, (but what you say makes sense) and they do probably run in parallel. I’m on hook up from tomorrow, I’ve been on solar and the two leisure batts since Saturday

 

[Lenny HB]

Im pretty sure both 1+2 wires run down to the two leisure batteries, (but what you say makes sense) and they do probably run in parallel. I’m on hook up from tomorrow, I’ve been on solar and the two leisure batts since Saturday

The lesiure batteries will be in parallel so the panel will see them as one battery.

 

[HandyAndy]

I doubt very much you'd have more than one "bank" of leisure battery information displayed no matter how many actual hab batteries you had connected together.
So one can only assume the garbled readings you are seeing are Hab and starter batteries..
Does it start?

 

[autorouter]

Are you absolutely sure the two batteries are both leisure batteries? Is it possible that one is the leisure battery and the other is the starter battery?

 

[Camping Gaza]

Buggered. multimeter on each one, disconnect both to find the duff one. chuck them both out and fit new ones and use the better duff one one for something else, not camper related, cheap enough.

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[WESTY66]

I doubt very much you'd have more than one "bank" of leisure battery information displayed no matter how many actual hab batteries you had connected together.
So one can only assume the garbled readings you are seeing are Hab and starter batteries..
Does it start?

Yes it starts fine, I think you and Lenny HB are spot on with the hab and starter batts!!
Thanks all, got 250km driving to charge them, also on hook up tonight?

 

[WESTY66]

Update, arrived in Rottenbuch leisure batts flashing full, showing 100% on panel, have plugged in ehu though just to make sure (part of price anyhow).
Well I’ve learnt that the panel shows the % of BOTH the batts, and learnt that the batt1 and batt2 is the hab and starter batts!!
Thanks guys?

 

[Lenny HB]

As you are in EHU you could turn off the charger to see how they perform tonight then turn it back on to recharge overnight.

 

[WESTY66]

As you are in EHU you could turn off the charger to see how they perform tonight then turn it back on to recharge overnight.

TBH Lenny I’ve not been on hook up since I left home week last Friday and have had 3 days sunshine, rest of time been grey and sometimes raining, so I’m guessing the 100w solar power wasn’t keeping up with our power consumption! On the grey days we was watching the avtex DVD’s a lot! I guess I could do an extra solar panel and upgrade batteries, something to think about over the winter???

 

[RowleyBirkinQC]

Maybe a B2B so you can charge effectively when in situ on grey days when no EHU?

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