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Battery Monitors


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#51 bigal.nz

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Posted 03 June 2019 - 08:59 PM

Looks like before summer a new starter battery will be required :-(

 

The current one is a BP100-12 100Ah VRLA (2012 vintage).

 

I am thinking of replacing with Victron 90Ah - like this: https://www.waveinn....cle/136917205/p

 

I think I can get away with 90Ah.

 

Does this battery look suitable?

 

Cheers

 

AG
 


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#52 Island Time

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Posted 03 June 2019 - 10:11 PM

No. It's not a cranking battery. You want a battery with a CCA rating. Probably 750 CCA or so.
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#53 Frank

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Posted 04 June 2019 - 04:49 AM

What do you think would have caused this battery meltdown on the weekend

Great if somewhat disturbing photo, looks like the reactor core went critical :-)


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#54 wheels

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Posted 04 June 2019 - 04:56 AM

To add, Re sealed LA batteries, Gel batteries are not the best choice for boat use, even for deep cycle House use. AGM is the better choice. Gel is a type that is better suited for backup use, like remote power backup, where they remain fully charged for extended periods. Gel does not like high current discharge/charge which tend to be most boat house requirements. The Gel can suffer from bubbles of gas forming in it. AGM does not suffer from that, but is still a sealed battery design.


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#55 bigal.nz

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Posted 05 June 2019 - 07:20 PM

No. It's not a cranking battery. You want a battery with a CCA rating. Probably 750 CCA or so.

 

Any recommendations on brand and where to get one IT?


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#56 Island Time

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Posted 05 June 2019 - 07:57 PM

PM Sent.


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#57 bigal.nz

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Posted 08 June 2019 - 05:35 PM

I think new battery could be on cards. I completely disconnected it 6 days ago 13.7v and today at 12.9. 0.8v in 6 days seems a bit much with no loads. The battery is 7 years old.
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#58 Island Time

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Posted 08 June 2019 - 05:40 PM

That means nothing. Fully charged lead acid is 12.8v after 10 hours rest. 12.9 is higher than normal. What matters is voltage drop with load for a cranking battery, or capacity for a deep cycle. Any battery place, even supercheap or repco, can easily test a starting battery with a CCA tester. Normally free.


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#59 Priscilla II

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Posted 08 June 2019 - 05:46 PM

I think new battery could be on cards. I completely disconnected it 6 days ago 13.7v and today at 12.9. 0.8v in 6 days seems a bit much with no loads. The battery is 7 years old.

Quite possibly after 7 years it is well due for replacement.
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#60 bigal.nz

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Posted 09 June 2019 - 12:00 PM

Right - well I will get it tests before I replace it, but given its age, and that the battery monitory was showing 1 red bar, I think its pointing to it being stuffed.


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