Lego Mindstorms EV3 Rechargeable Battery 45501 + Charger 45517 - good used cond. | eBay
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10v 700ma Au Plug Ac Dc Adapter Charger For Lego Mindstorms Ev3 Nxt 45517 Power Supply For Lithium-ion Batteries Uk Eu Us Plug - Ac/dc Adapters - AliExpress