Fogstar announced the launch of the Fogstar Drift 48V 125Ah Lithium Leisure Battery on 14 October 2025, describing it as a 48V addition to its Drift range designed in the UK1.
The battery carries a 150A battery management system, which the maker says provides "Full protection against over-discharge, over-current, and extreme temps" and "Continuous 150A output"1. It offers CANBus and RS485 communication for direct inverter integration, and the maker states that Victron, Pylontech, Growatt, Solis and Goodwe are all supported1. Battery-to-battery communications are included so that systems stay in sync when scaled up1. A low-temperature heating system is built in, which the maker says enables safe charging in freezing conditions1. Bluetooth monitoring comes as standard, with voltage, cycles, temperature and charge state available through the Fogstar Drift App, which is free on iOS and Android1.
"we stand by it, with a rock-solid 10-year warranty"
Fogstar says the battery was designed in the UK by its own team and is supported by a UK-based in-house support team1. The maker lists marine and boating setups, larger off-grid systems, high-demand inverters, and installations where smaller cabling is wanted among the intended applications1. Capacity in kilowatt-hours, price, dimensions, weight and chemistry are not given in the announcement and have not been reported1.
Why it matters for households
A 48V battery sits at the higher-voltage end of the leisure and off-grid market, where the same power can be delivered through thinner cabling than a 12V or 24V system of comparable output1. For a home running an off-grid or backup system, that affects how an installation is wired and how much current the cabling has to carry. The 150A continuous output and inverter communication protocols matter where a battery is expected to work alongside an existing inverter rather than as a standalone unit1.
The low-temperature heating addresses a known limit of lithium batteries: charging below freezing can damage cells, so a pack that can warm itself extends where and when a system can be charged1. The battery management system is the part that enforces those limits, and the protections listed here cover over-discharge, over-current and extreme temperatures1. Buyers weighing lithium against older lead-acid designs can compare the trade-offs in our guide to lithium-ion versus lead-acid, and safety and disposal questions are covered in our lithium battery safety page.
What happens next
No availability date, price or shipping details were given in the announcement1. Fogstar states that it will be exhibiting at Solar & Storage Live 2025, which it describes as its next appearance, but no further dated steps for this battery have been reported1.