1、WIDELY COMPATIBLE: Applicable for Worx 20V WU172 WU279 WU388 WU185 WU179 WU189 WU294 WU296 WU398 WU230 WU808 WU386 WU533 WU535 WU629 WU630 WU389 WU231 WE270 WE389 WE362. 2、VERSATILE INSTALLATION: The battery dock holder can be installed, inverted, or placed on a wall mounted storage rack at any angle. 3、EASY CARRYING: These battery mount dock holders can also be fixed to the waist through a belt, making batteries easy to carry around with you. 4、FIRM FIXATION: The battery could be securely fixed on the holder in place through its own clip, will not easily fall to the ground. 5、STURDY ABS MATERIAL: The dock battery holder is made of ABS plastic, which has strong support, sturdy and strong, has a longer service life.