... voltage protection, over-charge protection, battery status indication, adjustable output voltage, ... SummaryItem No.SBB6-0.6DescriptionSolar Battery Back-upInput voltageDC8VOutput voltageDC6VOutput voltage ... pump itemsBP320603/AStorage batteryNi-Mh, 6V, 600mAHBattery box material PlasticOn/off ... charged, 70% DOD)Operate at 6V, run at least 11 hours ... year Solar Battery Backup (SBB6-0 ...