Napa 85-5000 battery charger manual
Does anyone know where I can get a manual for a Napa 85-5000 battery charger? My dad is using one of these chargers to charge 8 GC2 batteries in his offgrid cabin. It's not an RV, but the setup is...
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That 115 AT 75 goes with a 6v at 226AH more or less. Two of those in series would be a bank of 226AH at 12v.
It would take about 2 hrs to recharge that pair from 50-90% with an 80a smart charger. Add another ten minutes if you start with a 60amper instead of an 80.
If you do several 50-90s in a row on that pair their capacity drops due to "progressive sulfation" until they won't get you through one night. Then you need shore power to get them back to 100% and start over. Two weeks was our max for that.
To go longer with the same daily draw, you need solar. This negates some of your daily draw so you can stay out longer --ie, same number of 50-90s, but with longer times to drop from 90 to 50.
If you have solar but go home every so often, then while you are away with no draw, but with solar coming in, you can catch up. This lets you keep going with a fresh start doing 50-90s.
It would take about 2 hrs to recharge that pair from 50-90% with an 80a smart charger. Add another ten minutes if you start with a 60amper instead of an 80.
If you do several 50-90s in a row on that pair their capacity drops due to "progressive sulfation" until they won't get you through one night. Then you need shore power to get them back to 100% and start over. Two weeks was our max for that.
To go longer with the same daily draw, you need solar. This negates some of your daily draw so you can stay out longer --ie, same number of 50-90s, but with longer times to drop from 90 to 50.
If you have solar but go home every so often, then while you are away with no draw, but with solar coming in, you can catch up. This lets you keep going with a fresh start doing 50-90s.
