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Battery Tender by Deltran

Arguably some of the world’s most advanced fully-automatic battery chargers for longer battery life, dependability, and far less maintenance! Deltran Battery Tender ® is the official factory authorised manufacturer of Harley-Davidson and BMW battery chargers.

Battery Tender ® assures some of the highest quality, fast-charging convenience and performance on the market. The choice of collectors, dealers, and fleet owners, their state-of-the art chargers can actually save hundreds of dollars in replacement batteries!

About Battery Tender

The company was started as a family business in 1965 and is based out of DeLand, Florida, and are best known for their BTP Microprocessor Technology incorporated in many of the products designed to maintain and protect your batteries.

From motorcycle, quad bikes, cars, vans and trucks to boats and other marine craft Battery Tender have specialist battery care products for most uses.

Deltran Battery Tender Warranty

So confident are they in the quality of their products, in general Deltran provide a 10 year warranty period on their battery charger products, depending on the model and region. The warranty covers both defective material or workmanship.

Why the Battery Tender® vs. conventional battery chargers?

Avoid the potentially damaging effects caused by most trickle chargers!

Their BTP Microprocessor Technology and quick-connect convenience automatically maintains the batteries in all your vehicles so they are ready to go when you are!

You just set it, and forget it, assuring the highest quality, fast-charging convenience and performance.

Want more proof?

* Rider Magazine: Product of the Year!
* Rated #1 by Motorcycle Consumer News.
* The #1 Selling Charger in the U.S. Powersports Industry!
* Endorsed & Recommended by Motorcycle Mechanics Institute (MMI) & the American Motorcycle Institute (AMI).
* Featured on Speed TV’s My Classic Car & Corbin’s Ride On.

Most Popular Products
Bestseller No. 1
Battery Tender 3 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Fully Automatic for Cars SUVs and Trucks - Lead Acid & Lithium Battery Charger - 022-0202-COS
1,173 Reviews
Battery Tender 3 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Fully Automatic for Cars SUVs and Trucks - Lead Acid & Lithium Battery Charger - 022-0202-COS
  • STAY CHARGED: The powerful 3 AMP charger provides a full charge to your automotive vehicle’s battery before automatically going into float mode to maintain proper voltage levels without overcharging. 5 amps 12 volt charger and maintainer
  • CONNECT AND FORGET: With a low maintenance design, our universal vehicle charger and maintainer is compact, lightweight, and easy to operate even in small storage space for your convenience
  • INCLUDES: 3 AMP battery charger, ring terminal and alligator clip combo cable, 5 year warranty, and lifetime customer service
  • MONITOR POWER LEVELS: A solid state two-color LED light indicates the charging status and if the battery voltage drops too far under load, ISM adaptive charging will resume full charger output power. It is UL/CSA, CE and BC approved
  • SAFE AND SECURE: Spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power.
SaleBestseller No. 2
Battery Tender 021-0123 Junior 12V, 0.75A Battery Charger and Maintainer, Black/Green (021-0123)
  • STAY CHARGED: Battery Tender battery chargers and maintainers provide a full charge to your powersport vehicle’s battery before switching to float mode to maintain proper voltage levels for safe, long-term storage
  • EXTEND BATTERY LIFE: Compatible with all 12V lead-acid, flooded, AGM, and gel cell batteries. Complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode) allows for optimization of battery power, without overcharging or battery damage. Smarter than a trickle charger.
  • INCLUDES: 12V, 750mA battery charger and battery maintainer with 12-foot output cord, fused-ring terminal harness for hard-to-reach batteries and alligator clip accessory cables, 5-year warranty, and lifetime customer support
  • SIMPLE & SAFE: Low maintenance, easy-to-use, universal battery charger is just 3.3 x 1.3 x 2.4 inches, 1 lb (charger only). Spark-proof circuitry ensures no-spark connections, and automatic reversed hook-up detection verifies correct connection
  • MONITOR POWER LEVELS: Two-color charge status LED light indicates the state of the charge and if the battery voltage drops too far under load, adaptive charging will resume full charger output power. Automatic charge cycle functionality switches to float mode after fully charging the battery
Bestseller No. 3
Battery Tender Plus 12V Battery Charger and Maintainer: 1.25 AMP Powersport Battery Charger and Maintainer for Motorcycles, ATVs, UTVs - Smart 12 Volt Automatic Float Charger - 021-0128
  • STAY CHARGED: Provides a full charge to your powersports vehicle’s battery before switching to float mode to maintain proper voltage levels for safe, long-term storage without overcharging
  • EXTEND BATTERY LIFE: Compatible with all 12V lead-acid, flooded, AGM, and gel cell batteries. Complete 4-step charging program (Initialization, Bulk Charge, Float Mode) allows for optimization of battery power, without overcharging. Smarter than a trickle charger.
  • INCLUDES: 12V, 1.25 AMP battery charger, fused ring terminal and alligator clip accessory cables, 10-year warranty, and lifetime customer support
  • EASY TO USE: Low maintenance design is quick and easy to use, this universal powersport vehicle charger and maintainer is 4.87 x 3.25 x 2.93 inches, 1.45 lbs (charger only)
  • MONITOR POWER LEVELS: Solid state two-color LED light indicates the state of the charge and if the battery voltage drops too far under load, charging will resume full charger output power
Bestseller No. 4
Battery Tender 4 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Fully Automatic for Cars SUVs and Trucks - Lead Acid & Lithium Battery Charger - 022-0209-BT-WH
  • STAY CHARGED: The 4 AMP car battery charger automotive provides a full charge to your machine's battery before automatically switching to float mode to maintain proper voltage levels for your battery without overcharging
  • FULLY SELECTABLE: With the push of a button, easily switch from AGM or flooded and lithium ion (LiFePO4) batteries to provide and maintain an optimal charge level for 6 and 12 volt batteries alike
  • HIGH POWERED: 4 amp switchable car battery charger automotive delivers a powerful charge to keep your car, SUV, pickup truck, or boat battery at peak performance by providing reliable engine starts and extended battery life
  • EASY TO USE: A low maintenance design that's quick and simple to use, our switchable automobile charger and maintainer is compact and lightweight to operate everywhere, even in small storage spaces
  • SAFE AND SECURE: Our car battery charger automotive and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power. 5 Year Industry Leading Warranty
SaleBestseller No. 5
Battery Tender® 12V, 800mA Weatherproof Battery Charger for Marine Applications Designed for Lead Acid, AGM and Gel Cell Batteries
  • - Spark proof included connections (alligator clip with ring terminal combo cables) will not spark when touched together, the charger will not produce output voltage until it senses at least 3 volts from the battery
  • - Reverse polarity protection that ensures the charger will not charge unless the connections are attached to the correct polarity
  • - A safety timer that will shut off the charger after 80 hours of continuous use
  • - Meets agency approvals and safety standards from UL, CSA, BC, FCC, and IP67
Which Battery Tender® product is for you? 

The Battery Tender Power Tender Plus is ideal for most applications: Automobiles, Motorcycles, RV’s, ATV’s, Golf Carts, baTrucks & general use.

The Waterproof 800 is unique for Boats, Watercraft & outdoors.


Their range of battery chargers and maintenance products are perfect for ensuring your battery is fully maintained whatever the weather, but even more so a part of your winter car care and winter motorcycle care.