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Old 16 March 2012, 19:17   #11
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*How does the amperage of the charger affect the battery I'm trying to charge?

*Will a higher amperage charger charge it better?

*I.e what amperage do I need, or does it not matter?

Thanks.
*The higher the Amp rating on the charger the more Amps are available for the battery to draw from it during charging.

*Itl charge it quicker but with leisure batteries slower is better.

*As a rough rule of thumb you divide the battery Amps by 10 to give you the charger you require, basically for your 100A battery you should be looking for a 10A charger.
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Old 17 March 2012, 17:36   #12
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Jonny; you might want to do a search for a good on-line battery primer and read up. Knowledge is a good thing.

jky
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Old 20 March 2012, 17:23   #13
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So, my Sealey Autocharge 12Amp battery charger arrived today (with thanks to A1an for his advice) and my battery is now on trickle charge.

On trickle charge it's currently drawing about 2amps and one fast charge it draws about 6amps, this sound about right?

Will let it charge fully and see how good it is after. Finger's crossed it has the beans to get the motor going!

Thanks for everyone's input.
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Old 20 March 2012, 17:42   #14
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Originally Posted by Jonny2488 View Post
So, my Sealey Autocharge 12Amp battery charger arrived today (with thanks to A1an for his advice) and my battery is now on trickle charge.

On trickle charge it's currently drawing about 2amps and one fast charge it draws about 6amps, this sound about right?

Will let it charge fully and see how good it is after. Finger's crossed it has the beans to get the motor going!

Thanks for everyone's input.
If it is drawing 2A from dead flat then it could be a little tired, my 120A Leisure will take 6A from dead on SLOW and 9A on FAST.

You will find as the battery gets older and more tired it will draw less from dead flat.

The good news is your battery isnt fubar and I would have every confidence in it being OK.

Did you check the electolyte levels in it?

The good thing about the Autocharge is that you can leave the battery on it during the winter and itl keep it topped up and healthy.
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Old 20 March 2012, 17:57   #15
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Thanks for that mate. It's between the min and max so presume that's ok?

I took one of the caps off and had a peer in, there seems to be a solid mass inside with some liquid around it, what's that all about?

Yeah will be useful being able to leave it on over winter and not have to worry about coming back to a flat battery in the spring!
J.
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Old 20 March 2012, 18:02   #16
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*Thanks for that mate. It's between the min and max so presume that's ok?

*I took one of the caps off and had a peer in, there seems to be a solid mass inside with some liquid around it, what's that all about?

J.
*Yep, as long as its taking something then its good news, when a flat battery draws 0A then its srappy time.

*Have a read up on how a Lead Acid battery works, all will become clear. The fluid level needs to be slighty above the lead plates.
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Old 21 March 2012, 14:50   #17
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Got back from work today to find that my battery was fully charged having been on trickle charge for 24 hours.

Plugged it into the boat and hey presto, the engine started first turn of the key! Good times

Is it safe to assume that as long as I look after it from now on, it should be ok? Or is there a chance it could die on me at some stage for no reason?

Thanks.
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Old 21 March 2012, 17:23   #18
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Got back from work today to find that my battery was fully charged having been on trickle charge for 24 hours.

Plugged it into the boat and hey presto, the engine started first turn of the key! Good times

Is it safe to assume that as long as I look after it from now on, it should be ok? Or is there a chance it could die on me at some stage for no reason?

Thanks.
It is rare for a battery to just FAIL, there are usually warning signs, the starter being lazy is the easiest to spot, losing its charge quickly when not in use is another.

All should be well as long as the engines charge circuit is healthy and not under or over charging.
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Old 25 March 2012, 17:06   #19
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Thanks a lot for your help and advice A1an and everyone, it's much appreciated. With any luck I shouldn't have anymore battery issues. Fingers crossed for happy boating

Cheers, J.
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Old 25 March 2012, 17:08   #20
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Happy boating
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