Deltran, 021-0123, 4 Pack Battery Tender Jr. Model # 021-0123 12 Volt 750mA Motorcycle PWC BRAND NEW Genuine Deltran brand Fully automatic 2-stage lead-acid battery charger 3-step fully automatic charging program (Bulk Charge, Float Mode) Charges/maintains sealed maintenance free, AGM, or flooded lead batteries After reaching peak 14.4 VDC, charger automatically switches to 13.2 VDC float voltage If voltage drops below 12.6 VDC, charger automatically resumes charging back up to 14.4 VDC Four step chargine program Manufacturer 5 year warranty