u/Lord_Alvin

Hi, how are you?

I semi-successfully converted my AA Logitech G603 from taking 1 or 2 AA to work to a 1000mAh LiPo.

For this project I basically carved a cavity in the mouse, where the AAs used to be and crammed a LiPo battery, it's charging module and a step down converter that takes the 3.7V - 4.2V of the LiPo, down to 1.5V.

Parts used:

1000mAh LiPo (3700 mWh)
Charging module TP4057 USB Type C
Voltage converter: step-up-down XL6009 (I think this part is the problem, relates to my next question)

My mouse used to last 8 months using 2 AA batteries around 8000mWh? So, a single LiPo should be giving me 3-4 months of usage. However, I'm getting 1 week max.

I believe there is a problem of efficiency when stepping down ushing the previously mentioned XL6009 module, it even has an audible electronic hiss which is probably wasting even more energy.

Can anybody give me any suggestions on what to do to fix the self - discharging of the mouse over time? Or at least recommend a more efficient step down only module? I find it very weird that there is no "readymade" solution for stepping down a LiPos Voltage to 1.5V.

I'm attaching a picture with the solution, looks rough, I know. But it works just fine so, I'm happy with the results.

Thank you!

Hi, how are you? I have just bought a new padel racket, and yesterday was my first time using it.

Today I noticed it had a portion of the handle chipped off, I wanted to make sure it was paint and not a portion of the carbon fiber. Because if it was I'd feel quite scammed.

On that same line, if it is in fact the carbon fiber, is there a way to repair it?