Forum Discussion
full_mosey
Mar 28, 2020Explorer
Price wise you can look into used AGMs. I am in a good place where we have a retailer that sells AGMs that are rotated out from industrial use on a regular cycle.
$75 for 110Ahs.
I recently got 4 x 155Ahs to build a 620AH bank at $428 OTD. Hardly more than the price of a single new retail AGM. They are dated Mar 2013. I charge with a 2200W/75A inverter/charger, plus 400W solar. In another system I have 2 of them dated Oct 2009. I expect the last 4 to last 10+ years as well.
Flooded batteries are not as much a worry over extensive maintenance; whereas the penalty of letting the plates run dry is catastrophic.
An ammeter is the key to knowing the SOC of AGM during charging.
HTH;
John
$75 for 110Ahs.
I recently got 4 x 155Ahs to build a 620AH bank at $428 OTD. Hardly more than the price of a single new retail AGM. They are dated Mar 2013. I charge with a 2200W/75A inverter/charger, plus 400W solar. In another system I have 2 of them dated Oct 2009. I expect the last 4 to last 10+ years as well.
Flooded batteries are not as much a worry over extensive maintenance; whereas the penalty of letting the plates run dry is catastrophic.
An ammeter is the key to knowing the SOC of AGM during charging.
HTH;
John
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