Battery  Tender® Chargers


All Battery Tender® battery chargers are designed to fully charge and maintain a wide range of styles of lead acid batteries in ways that avoid the potential damaging effects that can be caused by most trickle chargers.

 All Battery Tender® battery chargers have the five following characteristics:

  • Fully Automatic: At the end of the regular charger cycle, every Battery Tender® battery charger automatically switches its output voltage to a safe, storage or float level that eliminates the need to constantly check on the conditions of the battery.
  • Full Output Power at Low AC Line Conditions: Battery Tender® battery chargers will deliver full output power with input AC line voltages as low as 90 VAC. (Excluding chargers with output current of 2 amps or less).
  • Zero to Minimal Current Draw from Batteries: When the AC power is disconnected, most Battery Tender® battery chargers draw zero current from the battery. A few of the higher power models draw less than 1 milliamp from the battery.
  • Compact, Lightweight Construction: At any given power level, Battery Tender® battery chargers offer some of the highest charging power density in the industry.
  • Visual Indication of Charge State: Every Battery Tender® battery charger has some combination of colored lights to indicate the progress of charging.


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Battery Tender® Plus 12V @ 1.25A

Temperature compensated to ensure optimum charge voltage according to ambient temperature.

Automatically switches from full charge to float charging mode.

Battery Tender® at 1.25 amps will charge as fast or faster than any 3 amp charger available.

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).


Battery Tender® Junior 12V @ 0.75A

Perfect for all lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell).

Complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode).

Automatically switches to float / maintenance voltage after fully charging the battery.

If the battery voltage drops too far under load, full charger output power resumes.

Solid state two color LED indicates stage of charger.

Spark proof.

Reverse polarity protected.

12' output cord.


Waterproof 800 International - 12V @ 800 mA - USA & Western Hemisphere

This compact 800 mA battery charger has all the charge characteristics of its cousin the Battery Tender® Junior. 

"Supersmart" Technology

Spark Proof

Short Circuit Protected

Reverse Polarity Protected


Weighs only 1 Pound



Battery Tender® battery chargers offer a variety of power levels: 5, 7.5, 10, 15, 60, 70, 300 & 600 watts, maximum charge currents: 0.75, 0.8, 1.25, 2, 2.5, 4, 5, 10, 15 & 20 amps, and nominal battery voltages: 6, 8, 12, 24, 36 & 48 volts. Various charging algorithms are available to accommodate the wide range of lead acid battery styles: Flooded, Sealed, VRLA, GEL & AGM. Check with the factory for the combination of power, current, voltage and battery style that best meets your needs. Battery Tender® battery chargers are equipped with a variety of safety and interconnect options, not available on all models. Safety options include: spark free operation, reverse polarity protection and continuous short circuit protection. Interconnection options include: alligator clips, fused ring terminals and quick disconnect DC output cable harness. A variety of AC input power options are available.

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