Power tool battery for AL-KO devices. Compatible replacement battery, not an original battery from the manufacturer! Refer to the device and battery numbers listed to select the right battery for your device! Replacement battery suitable for: AL-KO: Rasentrimmer GTLi, Trimmer GTLi 18V Comfort Worx: RW9161, WG150, WG151, WG151.5, WG151E, WG151E.5, WG152, WG153, WG154, WG155, WG156, WG157, WG160, WG163, WG170, WG180, WG251, WG251.5, WG251E, WG540, WG540E, WG540E.1, WG540E.5, WG891E, WU287, WU289, WU381, WX163, WX163.1, WX163.2, WX163.3, WX163.M, WX164, WX164.3, WX368, WX368.1, WX502, WX502.1 Identical to the following batteries: Worx: WA3511, WA3512, WA3512.1, WA3516, WA3520, WA3523, WA3525, WA3575 Please note: Opening your device voids the warranty. Installing this battery is especially complex and follows at your own risk. We do not assume any liability for damage and failure with devices and/or batteries. https://elecena.pl/product/19543548/82843-power-tool-battery-for-al-ko-devices-20-v 2021-09-29 https://elecena.pl/product/19543548/82843-power-tool-battery-for-al-ko-devices-20-v 2024-03-23