Solar Battery Backup Calculator

Input values below and click "Calculate" to populate the other values on the page
Load Voltage	Inverter Efficiency Rating

Load Amperage

Input Amps of electricity needed as measured by multimeter: Appliances, Inverters, lights, etc.

SunXtender 12 Volt Solar Batteries	Batteries Necessary for Reserve Power (+/- 1) @ 50% Depth of Discharge
Sun Xtender #PVX-340T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-420T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-490T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
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	5 day reserve =
Sun Xtender #PVX-560T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-690T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-840T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-1080T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-1040T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-890T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-2120L	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-2580L	5 hour reserve =
	12 hour reserve =
	1 day reserve =
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Sun Xtender #PVX-1040HT	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =

Sun Xtender 6 Volt Solar Batteries	Batteries Necessary for Reserve Power (+/- 1) @ 50% Depth of Discharge
Sun Xtender #PVX-1380T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-1680T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-1780T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-2080T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-2160T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-2240T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =

Sun Xtender 2 Volt Solar Batteries	Batteries Necessary for Reserve Power (+/- 1) @ 50% Depth of Discharge
Sun Xtender #PVX-4140T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-5040T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-5340T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-6240T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-6480T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =
Sun Xtender #PVX-1030T	5 hour reserve =
	12 hour reserve =
	1 day reserve =
	3 day reserve =
	5 day reserve =