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Calcium Batteries

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GI Auz

Post subject: Calcium Batteries

Posted: Sat Dec 24, 2016 5:59 am

Shark

Joined: Wed Dec 24, 2014 9:12 pm
Posts: 149

My Xantrex Truecharge2 40 is set to "Flooded" battery type.
However my battery bank looks to be "Calcium Lead".
There is a Calcium setting on the charger. Anyone know any reason for not using that setting which provides a higher absorption voltage?

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GI Auz
2004 288 Vista
Twin 4.3 Merc

Previously:
Beneteau 411 Non-Stink

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tklass

Post subject: Re: Calcium Batteries

Posted: Sun Feb 05, 2017 1:14 pm

Tadpole

Joined: Sat Feb 04, 2017 6:58 pm
Posts: 4

IT has to do with gassing during a charge and the charge voltage. in the flooded mode you will be charging with 13.5 volts a max at 14.4 and in a true calcium-lead they have a slightly higher absorbed voltage around 15.5. If they are both Calcium-lead and are new then you could probably do the 15.5 but if you are not 100% just leave it in the flooded mode since that will reduce the risk of overcharging.

After a long charge you could measure each with a volt meter or check with the battery MFG on the absorbed charge if you want to change it to calcium-lead

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