The Topband B-Series are high quality lithium batteries with a 4000+ cycle life that are perfect as drop-in replacements for lead-acid batteries in leisure, marine, solar, power backup, and other deep cycle applications. A built in BMS ensures comprehensive safety and Bluetooth functionality allows connection to the battery via the TBEnergy App where you can view real time SoC, charge/discharge current, charge time remaining, battery temperature, warnings, error logs and more.

This 150Ah variant also has a built-in heater that takes its power from the charging source. This raises the battery temperature slightly and enables it to be safely charged even when the ambient temperature is below 0°C. This battery also has standard SAE terminals and a low height of 190mm that allows it to be installed in small spaces such as under vehicle seats.

Lithium Iron Phosphate (LiFePO4) technology is fast becoming the new standard in deep-cycle applications with superior cycle life, useable capacity and charge/discharge rates, along with a much lower weight and very low self discharge.

Topband B-Series features

• High quality design with Bluetooth connectivity & heater
• Built-in BMS (Battery Management System) for complete protection
• 4000+ cycle life @ 80% DOD
• Up to 2x useable capacity compared with an equivalent lead-acid
• Light weight (35% of the weight of an equivalent lead-acid)
• Support for series and parallel expansion (up to 4 in series and 10 in parallel)
• Low temperature discharge down to -20°C
• Very low self-discharge
• 5 year warranty
• Dimensions: 355 (L) x 176 (W) x 190 (H) mm

Further information

The TBEnergy app can be found on the Google Play or Apple App Store.