Well, we over-did it a bit this time. Our battery bank has not been charged to 100% yet this month - actually hasn't been above 85% SOC. We been running A/C and that takes all the power all the RE equipment can make, plus some prime generator power to keep it lit. We got a nice cool breeze off the lake today so we shut the A/C down. The solar panels absorbed the battery for 8.7 hours today and finally got 'em down to 30 amps. They need to get to 23 amps for full charge. I check the SG's on some random cells and they were only at 1.240
When the batteries are that close and haven't been charged for that long, I do something I normally don't do. I enabled the charger in the XW and started up the genset to finish absorbing them with Power Charging. Three hours of that Power Charging now and I finally got 'em down to 25A:
I checked SG's again and now I got 1.250-1.255. It's gonna take at least another 3 hours to get 'em to 23A and 1.265 and they're up to 40C so they're pretty warm. I'm thinking I might stop this process tonight and let the solar panels finish it tomorrow. And even then it'll take two more full days of absorbing to get 'em back to 100%.
That freakin' air-conditioning is hard on batteries
When the batteries are that close and haven't been charged for that long, I do something I normally don't do. I enabled the charger in the XW and started up the genset to finish absorbing them with Power Charging. Three hours of that Power Charging now and I finally got 'em down to 25A:
I checked SG's again and now I got 1.250-1.255. It's gonna take at least another 3 hours to get 'em to 23A and 1.265 and they're up to 40C so they're pretty warm. I'm thinking I might stop this process tonight and let the solar panels finish it tomorrow. And even then it'll take two more full days of absorbing to get 'em back to 100%.
That freakin' air-conditioning is hard on batteries
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