Got rechargeable Ni-MH or Ni-CD batteries for your RC car, toy, or other gadget? This Heyiarbeit USB charging cable makes topping them up a breeze. Just plug it into any USB port – like your laptop, power bank, or wall adapter – and connect it to your battery via the SM-2P plug. It outputs 6V at 250mA, so it's a slow and steady charge that's gentle on your cells. There's a red LED indicator that lights up while charging, so you know it's working. It's got built-in overload and overvoltage protection to keep things safe. The cable is black, compact, and easy to toss in a bag. Perfect for hobbyists who need a convenient way to charge their RC vehicle batteries without a bulky dedicated charger. Just make sure your battery is compatible (Ni-MH or Ni-CD, and matches the plug type). A handy little tool to keep your toys running!