We need to protect an off-grid solar system that is primarily used to power an 240VAC 80W sewerage system aerobic pump that is supposed to operate 24/7 and at least 4 hours per day in unattended use (private camp-ground). The battery is a Eclipse Power 280AH Deep Cycle AGM. We have purchased a Battery Protect BP220 to provide a low voltage cut-off to inverter however I notice that the highest low voltage cut-off on the BP220 is only 12.0V [Setting 8]. This is way too low in my research which should be 12.5 to 12.8V. When there is poor light or after use at night, we need the battery protect to kill the load until the batteries are charged sufficiently. Am I using the right product? Are there alternate settings?
| Cycle Use | Initial Charging Current less than 75A. Voltage 14.4V~15.0V at 25oC (77o F) Temp. Coefficient -30mV/oC |
| Standby Use | No limit on Initial Charging Current Voltage 13.5V~13.8V at 25oC (77o F) Temp. Coefficient -20mV/oC |
