- If you are using a Rechargeable 9V Battery in your Viper Combat Robot or in your Playable Battle Robot Kit, this 9V Charger Adapter Cable will let you recharge without having to remove the battery from the robot!
- Simply plug the connector from your 9V Charge Switch (Viper version)/(Playable Battle Robot version) into this Adapter Cable and it's charging!
Required:
- You must be using a rechargeable 9V Li-ion Battery *Do not attempt to recharge an alkaline battery.
* Other rechargeable 9V batteries may work as well, but make sure they recharge through the top two main power sockets and not via a USB side port.

- You will need to use a 9V Battery Charger that charges through the battery's top power sockets
Recharging your robot:

Plug the Charge Adapter Cable into your 9V charger. You can keep this always plugged here.
Warning: Because this cable is designed to plug into a 9V Charger and not into a 9V Battery, it has swapped polarity. Do not plug this Charge Adapter Cable into a battery because the output +/- will be reversed.

To charge the robot:
1. Turn off the robot by inserting the On/Off/Charge Plug.
2. Connect the On/Off/Charge Plug to the 9V charger via the Charge Adapter Cable.