Its a genius idea to Say goodbye to remote control batteries,I made rechargeable gadget for tv remote control so I dont need to buy new batteries every time when remote control its not working.
To make this battery eliminator only you need is small lithium ion battery and lithium ion battery charger board TP4056 which you can order online for under 1 dollar.

Check these videos for batteries:
-Size C Battery Eliminator DIY [ Ссылка ]
-How to Make Battery Eliminator size AA [ Ссылка ]
-How To Make Battery Eliminator 2xAA [ Ссылка ]

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