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Battery Tender Plus 12v 1.25 Amp 4 Stage Smart Charger

Was: $71.95
Sale Price: $54.95
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Product InformationStore Part Number: 021-0128


Keep your batteries fully charged without the adverse effects possible with traditional trickle chargers. The Battery Tender Plus smart charger makes optimal battery storage a reality with its 12V, 1.25 amp design. In addition, leave the charger wiring attached to the battery while operating the vehicle with its E-Z quick disconnect harness.

Each Battery Tender ships with one each quick disconnect ring set and alligator clips.


  • Temperature compensated to ensure optimum charge voltage according to ambient temperature.
  • Automatically switches from full charge to float charging mode.
  • Reverse Polarity Protection to ensure user safety. Red & Green Lights Alternately Flash in this condition.
  • Complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode).
  • Perfect for all lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell).
  • Safety timer: 72 hrs.
  • Certification: UL/CSA. FCC.
  • AC Power Cord Length: 6 ft. - 18AWG
  • DC Output Cord Length 4.5 ft. - 18AWG
  • DC Accessory Length 1.5 ft. - 18 AWG
  • 10 year Warranty!


* Flat Rate shipping is for the lower 48 states only.

Tech Specs

  • Dimensions (LxWxH): 4.875 x 3.25 x 2.875 in
  • Weight: 2.75 lb
  • Shipping Weight: 3.0 lb
  • DC Output Amps: 1.25
  • Absorption Voltage: 14.6 V
  • AC Input Volts: 115 V
  • AC Input Volts Freq.: 60 Hz
  • Max Inrush Current, Single Cycle: 0.36 A
  • Float Voltage: 13.3 V
  • Model: 021-0128
  • Manufacturer: Deltran
  • Power Factor: 0.8
  • Maximum Power (+/- 3%) @ 25° C: 18 W
  • Charge Reset: Battery Voltage Threshold: 12.5 V
  • Working Temperature: -20° to 60° C
  • Enclosure: Powder Coated Aluminum Chassis
  • Output Banks: 1
  • Temperature Compensation: Yes
  • Regulatory Approval: UL/CSA/FCC
  • Manufacturer Part #: 021-0128
  • Made In: Asia

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