A 52V 20Ah battery can last approximately 1 to 4 hours depending on the load it supports. The actual duration varies based on the efficiency of the device and the battery's discharge rate.
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A typical 5kW solar + storage system in Niamey ranges between $8,000-$15,000. Why the variation? Pro Tip: Battery type accounts for 40-60% of total system costs. This report is available at no cost from NREL at www.
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You're more likely to deal with uneven self-discharge that will take the batteries out of balance while in storage, and you'll need to jack with them before putting them back into service. If you really want to discharge, a standard 120VAC 60W Incandescent or halogen light.
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Its size is 750*520*1952mm, and it weighs 845kg. It is especially suitable for applications that require high power output but have limited installation space and need a long cycle life.
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