The makita bl1041b is a 12v cxt cordless lithium ion battery delivering 4.0ah capacity for extended runtime on compatible tools. Designed for professional tradespeople who demand reliable power throughout the working day, this battery features advanced protection circuitry to safeguard against over discharge, overheating and overload conditions. Individual cell monitoring technology ensures optimal performance and longevity, whilst the battery maintains excellent performance even in cold working conditions. The anytime charge capability means there's no memory effect and no need to fully discharge before recharging, providing flexibility on site. A 4 stage led fuel gauge provides clear visibility of remaining charge at a glance, allowing you to plan battery changes without interrupting your workflow. The high capacity design makes this battery ideal for electricians, carpenters and general contractors working with makita's 12v cxt tool range where sustained power is essential. Features and benefits bull 4 stage led battery fuel gauge for clear charge status monitoring bull high battery capacity for extended runtime between charges bull individual cell monitoring technology for optimal battery performance bull battery protection circuit safeguards against over discharge, high temperature and overload bull low temperature performance maintains power in cold conditions bull anytime charge with no memory effect and no discharge required specifications voltage 12v capacity 4.0ah battery type lithium ion platform cxt