My third-party Ipad pencil is not very powerful, so I bought another brand and it is very easy to use, so I have one more on hand. I originally used as a backup, but today I had a sudden idea to add a 18650 battery to it, making it a "disposable" product that only charges once [laughing]
Apple official iPad pencil first generation specifications are 3.82 v and 0.329 Wh lithium battery, which is almost 86mAh. The second generation seems to be checked online for 53mAh, and the 2000mAh 18650 battery on hand. Even if the capacity attenuation is considered, it is 20 times the original power supply. Considering the low power consumption of the pen, it will probably be used for a long time to charge it once.
The design of the pen is very exquisite, and it is not fixed with any glue or anything. It is very convenient to disassemble it
Its structure is also modular, and the nib part is ipad The core module of pencil, the pen tip is the battery module, including charging, indicator light, switch and battery
disassembled, it is like this
Next is the material used for modification, a flashlight switch, a charging and discharging chip, and a 18650 battery
First use AB glue to fix the 18650 battery and pen shell
Then fix the switch and charging and discharging chip, and also use AB glue
10
101
Come on, connect the line
Test the charging function, there is no problem
All connection tests OK, I also found that the switch and the charging and discharging chip stick inversely, and it should be stuck on the other side, forget it, just like that, then wrap a coat on the whole body with plastic soil and it is done
The original dust-proof hat can also be used
Check the effect
