Battery Tender 021-0156 Battery Tender Plus 12V Battery Charger True Gel Cell Model

Temperature-compensated to ensure optimum charge voltage according to ambient temperature Unique Gel Cell battery adjusted software allows for a slightly lower charge voltage and higher store voltage to protect sensitive true Gel Cell batteries Lower voltage for specific use on GEL batteries only Complete 4-step charging program (initialization, bulk charge, absorption mode and float mode) allows for optimal constant battery levels without overcharging Automatically switches to float/maintenance voltage mode after fully charging the battery