Part of the Power X-Change battery system, featuring Plus technology. High quality Li-ion cells provide a powerful, compact and lighter design, as well as consistent high power with no memory or self-discharge effects. 3-level LED charge status indicator and active battery management system (ABS) offers optimal battery monitoring, improving device performance, runtime, safety and service life. Short-circuit protection ensures that the battery can be used once dry if it has been immersed in water. Rubber coating with recessed grip offers high impact protection and easy removal from all units. Suitable for compatible cordless power tools, including twinpack use in 36V applications. IP57 Sealed Housing Waterproof & Dustproof Short-Circuit Protection IP57 Sealed Housing Waterproof & Dustproof Short-Circuit Protection