Bren-Tronics is an advanced designer and manufacturer of Li-Ion rechargeable batteries, universal chargers and complete energy storage systems from watt hours to megawatt hours.

Founded in 1973 by Leo A. Brenna, a Vietnam-Era veteran, Bren-Tronics started to design primary batteries which shifted to secondary (rechargeable) batteries in the 1980s.

In 1995, Bren-Tronics introduced the first Li-ion rechargeable military battery.

Today, we continue to innovate with advanced chemistries and solutions tailored with various input sources such as solar panels, AC or DC.

Rechargeable Li-Ion batteries and Universal chargers

• trusted supplier of rechargeable batteries for over 20 years.
• Over one million of rechargeable batteries supplied for the warfighter
• Battery standards defined upon Bren-Tronics specifications.
• Universal chargers that can charge more than 100 different types of batteries

Compact and renewable Power Station

• Smart solar power station to power 12/24 V devices
• Versatile solution that can be used as a UPS, Power Supply or Stand-Alone Battery Unit
• Uses up to 6 BB-2590/U batteries for energy harvest

High capacitive 6T Li-Ion Battery – BRENERGY

• Latest generation of 6T format batteries for military vehicle
• High capacity and cranking performances
• Tremendous life cycle and weight saving
• Smart CAN-BUS monitoring

Soldier Modernization Power

• Design of a complete, light and robust power solution dedicated for soldier modernization programs
• Safe and enduring Li-Ion technology with an ergonomic shape

Engineering Excellence

• Fully staffed engineering department – each battery, charger and power system present a unique set of mechanical, electrical and software engineering challenges.
• Rapid prototyping and in-house qualification testing
• Quality standards

In Spain:

• GDELS
• UROVESA
• GTD
• AUNAV

All armies in Europe and in the USA