I have Motorola Moto 360 2st edition smartwatch and watch original battery is dead. I have converted smartwatch into table watch in DIY wooden block and added 18650 3.7v battery instead and now its works fine for 2 to 3 days but then battery dies and I have to remove 18650 and charge with its charge.
Dead Smartwatch original battery photo.
Can I convert regular phone charger with 5V output to 3.8V output to run my smartwatch continually? If yes what I have to do ?