Powered by lithium ion this versatile 20v max 15 ah 1 500mah spare battery will ensure your vonhaus garden tool is always ready to use r r benefitting from no memory effect and virtually no self discharge this powerful battery is chargeable irrespective of its current state even if your tool isnrsquot used for months at a time charging the battery and operating the tool at optimum power wonrsquot be an issue maximum productivity less downtimer r easy to fit and remover r compat