Forum Discussion
Whangler
Dec 01, 2020Explorer II
CA Traveler wrote:The panel wattage seems to be adequate, the batteries are up to 12.6 by afternoon, however the battery voltage is about 11.9 in the mornings after a night with 2 cpap machines running.
Battery voltage should rise to 14V+ for bulk charging and then taper down to absorb on the way to 13.4V for float. Up to 12.6V is way low for a full charge.
Experience is a fantastic teacher. Recommend you buy 2 more AGMs, a battery moniter I suggested in your other thread and learn. Then you'll have a better base of knowledge for upgrades. Start with your battery specs - what are the recommended charging voltages?
The 12.6 I mentioned is what the zamp monitor shows once the sun goes behind mountain and the charging is done for the day. When the sun is up and hitting the panels, it shows 14+ on a good afternoon, usually about 13.4+.
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