Leisure Battery Capacity. Advice.

[PaulRainbow]

Yes.
the results.
and an hour later with everything on.

Looks better than before. Can you not set the battery capacity on the monitor ?

Bearing in mind your charging thread, keep a close on on the charging with these or you could kill them in a short time. The 12.6V in the first pic is not fully charged.

The Ebay advert states "Totally maintenance free – NON sealed unit" that's a load of rowlocks. If they are not sealed they will vent and need periodic topping up, keep an eye on this.

Otherwise, good luck.

 

[oldgit]

Looks better than before. Can you not set the battery capacity on the monitor ?

Almost certainly.....possibly .......would this possibly involve actually reading and understanding the instructions ?

There are definately vents in the top of the batteries.
Eventually came down to..............
A. Batteries that would actually fit inside the battery box .
B. Then chose with the heaviest battery , in an optimistic hope it contained the most lead ?

Of course the extra height of the batteries now means the £$%^? lid no longer fits on top.
Suspect that two of the batteries under consideration come from the same factory but with different labels.

Do appreciate your efforts .
If you should ever venture down to the more civilised part of the country by car or boat ,owe you a beer.
Fred.

 

[PaulRainbow]

Almost certainly.....possibly .......would this possibly involve actually reading and understanding the instructions ?

Real men don't read instructions

There are definately vents in the top of the batteries.
Eventually came down to..............
A. Batteries that would actually fit inside the battery box .
B. Then chose with the heaviest battery , in an optimistic hope it contained the most lead ?

Of course the extra height of the batteries now means the £$%^? lid no longer fits on top.
Suspect that two of the batteries under consideration come from the same factory but with different labels.

Do appreciate your efforts .
If you should ever venture down to the more civilised part of the country by car or boat ,owe you a beer.
Fred.

You're welcome Fred.

 

[Alex_Blackwood]

Almost certainly.....possibly .......would this possibly involve actually reading and understanding the instructions ?

There are definately vents in the top of the batteries.
Eventually came down to..............
A. Batteries that would actually fit inside the battery box .
B. Then chose with the heaviest battery , in an optimistic hope it contained the most lead ?

Of course the extra height of the batteries now means the £$%^? lid no longer fits on top.
Suspect that two of the batteries under consideration come from the same factory but with different labels.

Do appreciate your efforts .
If you should ever venture down to the more civilised part of the country by car or boat ,owe you a beer.
Fred.

You may need one of these.
Top Tech Battery Hydrometer Tester | Euro Car Parts
And some of this
CarPlan DIW005 De-Ionised Water - 5L | Wickes.co.uk

 

[Akestor]

After my last "deep cycles batteries" that survived for 4 years, with the previous 2 years in a bad condition, I said I never buy again the crap batteries they sell for deep cycle at a high price when in reality they are starting batteries at best...
With a little more money you can get a top-notch battery that's actually deep cycle.
For approximately 100 euros more than the crap, I bought 2x100AH lead carbon technology which is the best thing after Lithium. Plus you don't need BMS and alternator protection etc...only a good MPPT
The analogy is like buying overpriced junk shoes for 14$ or a Nike for 19$...Worths getting the Nike as they will last much longer and do the job perfectly...

 

[wingcommander]

Just one point regarding the 1/10th off fully charged. All the readings taken are always surface voltage, which will appear lower ( especially if their is a low load due to the internal chemistry) . This is the main reason we are told to allow the battery to sit for an hour or so ( surface voltage can continue to rise even with charging sources disconnected) before final readings.
Apologies if this has been allready mentioned, its a long thread and teas ready.