Bren-Tronics

Bren-Tronics

Bren-Tronics Defense LLC

Commack, NY, United States

Soldier EquipmentLand Systems & VehiclesUnmanned SystemsAir SystemsDual-use
Founded 1973Component Supplier, Contract ManufacturerSupplies Land Forces, Air Forces, Naval Forces
Profile last updated: April 25, 2026

About

Founded in 1973, Bren-Tronics is a defense component supplier based in Commack, United States working in soldier equipment, land systems & vehicles, unmanned systems +2 more.

Bren-Tronics is a manufacturer of rechargeable and primary batteries, chargers, adapters and portable power systems, primarily for military use. It was founded in 1973 by Leo Brenna, initially producing primary batteries for military and industrial applications, and moved into rechargeable nickel-cadmium batteries in the 1980s. Its product range covers lithium-ion, NiMH and NiCd cells, vehicle batteries (including the 6T form factor), soldier radio batteries, drone and robotics power, directed energy power systems, and custom battery designs. The company describes itself as a custom battery manufacturer, developing bespoke solutions including submersible, airframe-specific and high-capacity (up to 1000 Wh) batteries. Its products are designed to meet DOD standards and are field-tested for harsh environments. EnerSys has announced an acquisition of Bren-Tronics to expand its presence in critical defense applications.

Location

Commack, United States

Founded

1973

Company type

Subsidiary

Legal name

Bren-Tronics Defense LLC

VAT number

CZ6130017110

Focus areas

batteriesrechargeable batterieslithium-ionmilitary batteriesbattery chargersportable powervehicle batteriescustom batteries

Languages

EN

Products & capabilities

Defense domains

Soldier EquipmentLand Systems & VehiclesUnmanned SystemsAir SystemsCommunications & SATCOM

Supply-chain role

Component SupplierContract Manufacturer

What they offer

HardwareComponentsManufacturing ServicesEngineering Services

Markets

Also sells to civilian markets

Products

BB-2590/U

Rechargeable lithium-ion battery

Lithium-ion battery used in radios, robots, sensors and other military systems; long-standing military standard for small systems.

BB-2557/U

Rechargeable lithium-ion battery

Military-standard lithium-ion battery built for harsh environments and certified for use in many devices, including UAVs.

6-PACK Portable Power System

Portable power system

BB-2590/U based portable power system that can act as a UPS, power supply or standalone battery unit.

CSEL Battery

Radio battery

Battery designed for high reliability in CSEL radios, with cold temperature enhancement and water immersion capability.

AN/PRC-148 Battery

Radio battery

Radio battery providing improved power over a wide operating temperature range and compatible with solar charging.

6T Lithium-Ion Vehicle Battery

Vehicle battery

MIL-PRF compliant lithium-ion 6T battery for military vehicles, with about half the weight of lead-acid batteries.

Soldier Portable Charger (SPC)

Battery charger

Portable field charger for military batteries, with Lite, CE and vehicle-mounted variants.

NETT Battery

Battery

Lightweight 14.4V battery for robotics, training and simulation vests, and radio communications.

End users

Land ForcesAir ForcesNaval Forces

Standards, platforms & customers

Defense standards

MIL-PRF-32565CMIL-PRF-32565BMIL-PRF-32383MIL-PRF-32052/1

Platforms & programmes

StrykerLRAS3TOWJAVELINSINCGARSAN/PRC-148AN/PRC-152

Named customers

U.S. Army

Credentials & affiliations

Awards

Award for production of military-grade batteries used by U.S. and Allied troops during the Persian Gulf War

Electronics Command, Ft. Monmouth, NJ

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