Please see the enclosed pictures of new trolley, asYou can see, upper handle be adjustable, theLower locked while fold and unfold, theBattery pack located in battery case close toThe driving wheel, it is reliable has moreClimbability, controller with different socket, soEasy to replace, ...
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Address:No. 226, huangshahe (E) Rd, xiangxi management area, liaobu town, dongguan city, Guangdong provoince China523408City, China