Battery Tender

About Battery Tender®

Battery Tender®, a flagship brand of Deltran, has been a trusted name in battery maintenance technology since 1965. Founded in central Florida, Battery Tender® by Deltran is a trusted name in the industry. Deltran's roots lie in power conversion and electronics, culminating in the pioneering of the world's first line of fully automatic smart battery chargers under the Battery Tender brand in 1988. That single innovation changed how the world thinks about battery care.

A Legacy Built on Smart Charging

What set Battery Tender apart from the start was the intelligent engineering behind every product. The Battery Tender line of battery chargers revolutionized the industry by incorporating microprocessors that regulate proper charge algorithms and prevent overcharging — a common issue associated with legacy trickle chargers. Today, that same commitment to precision is embodied in their proprietary ISM (Infinite Sequential Monitoring™) technology, which delivers a precise 4-stage charge sequence — Initialization, Bulk Charge, Absorption, and Float — preventing the overcharging and sulfation that permanently destroy batteries.

The result is a brand that has emerged as the preferred choice of collectors, dealers, fleet owners, racers, and enthusiasts alike.

A Full Range of Power Solutions

The Battery Tender line has expanded from just battery chargers to jump starters, solar charging battery testers, inverters, and accessories. Today, Battery Tender offers a comprehensive lineup of charging solutions ranging from 750mA to 48 AMP chargers, multi-bank systems, jump starters, EV chargers, and solar accessories — all designed and engineered in the USA.

Across automotive, powersports, marine, and RV applications, Battery Tender has a solution for virtually every vehicle and every season. Their vehicle batteries and battery chargers are engineered to work together, giving owners a complete ecosystem for keeping their vehicles powered and ready. Their versatile chargers are designed for quick recharging and maintenance of automotive, marine, and powersports vehicles — users simply connect the unit and select their required voltage and battery chemistry, including Lithium LiFePO4, AGM, or lead-acid.

Built in the USA, Trusted Worldwide

Family-owned and operated in Central Florida, Battery Tender® by Deltran has been a trusted name in battery and charging technology for generations. They specialize in the design, manufacturing, and distribution of technologically advanced power-related products, with a strong focus on innovation and customer satisfaction across the automotive, powersport, marine, and RV markets. Whether you're storing a classic car for winter, maintaining a fleet of work vehicles, or keeping a motorcycle ready for weekend rides, Battery Tender delivers the reliability enthusiasts and professionals depend on.