Dead Leisure Battery?

[Alanmh]

So after a long day out in overcast weather yesterday, the leisure battery was only at about 95% cahege according to the Victron smart shunt.

This morning I was awaken at about 7am by the fridge doing its start then stop low battery voltage thing.ao I looked at the Victron to find it saying 71%charge. However its the voltage dip when the fridge kicks in as shown in the pic that makes me think the battery is dead.

Anyone more knowledgeable can offer a more expert opinion?

 

[Dellmassive]

6a for 10sec shouldn't drop the battery volts down to 8v.

So either the battery is flat or defective.

Got a pic of the battery.?

And bmv battery setting page.?

 

[Alanmh]

6a for 10sec shouldn't drop the battery volts down to 8v.

So either the battery is flat or defective.

Got a pic of the battery.?

And bmv battery setting page.?

That's what I thought.

 

[AussieMick]

Send screenshot of this page. This is with my fridge running right now.

 

[Alanmh]

I ran the engine for 30 minutes ad immediately got a charge of 14 amps into it.

 

[Alanmh]

Send screenshot of this page. This is with my fridge running right now.
View attachment 81991

Yep, that's what I normally get if the voltage stays high enough.

 

[Dellmassive]

Setting page looks good for a 110ah SLA battery.

What dc-dc charger have you got?

It will take 5-10hrs with engine running to fully charge that battry.

Try giving it a full 24hr charge with proper 240v charger...

 

[Dellmassive]

This my settings. 110ah SLA loach extreme.

..

.

 

[Alanmh]

It's a ctek250sa. Battery was fully charged on the mains on Sunday, and a 4.5 hour journey faster that. So pretty sure started at 100% and a sync on the smart shunt.

Ned to see if I can move some things around to get the bigger AGV battery in or have to get the 100 AHr one.

 

[Dellmassive]

Thats good.

D250 is about 20A charge rate...

 

[Dellmassive]

cool,

have a look over these threads . . .

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[Guide] DC-DC Charger (for leisure battery) -- How I Done It --

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Fridges & Cold Beer -- How I Done It --

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Battery Chargers - How I Did It -

Battery Chargers - How I Did It - So its that time of year again, cold, rainy. . . . . . . flat battery =[ This time we look at Battery Chargers. Our vans will most likely come with a AGM style starter battery, for this type of battery we need a "Smart Charger" . . . . but what does this...

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Dellmassive`s -- "how I Done It" -- Thread
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Kit List And Stuff -- How I Done It & What I Use --
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