Which Battery is Best for Off-grid Solar?
Off-grid batteries will be deeply cycled regularly and often operated in a Partial State of Charge (PSOC) situation. Off-grid batteries should be efficient so as not to waste valuable energy generated by solar or diesel generators. Off-grid batteries need high power capability to support the high surge draw, discharge and charge current of off-grid inverter-chargers. Access to off-grid sites is not always easy, so a maintenance-free battery is highly desirable. High and low temperatures need to be considered as this will affect the useful lifetime of the chosen battery. State of Charge (SoC) monitoring is critical for off-grid users and systems which rely on accurate battery SOC for functional operation.