The Power X-Change PLUS 18 V 4-6 Ah Multi-Ah system by Einhell is part of the multifunctional and completely interchangeable Power X-Change battery range from Einhell. These powerful and durable universal Power X-Change batteries power all cordless devices in this product range used for gardening and DIY jobs. The benefits for the customer are clear: with a universal battery and charger system compatible with all devices, significant savings can be made at the time of purchase, the environment is preserved, and flexibility is gained for work in the home and garden. Additionally, it avoids the clutter caused by using multiple batteries and chargers for a single device. Thanks to MULTI-Ah technology, this device can operate in 6 Ah mode for maximum runtime or in 4 Ah mode to preserve the battery and triple its overall lifespan.