Logitech MX keys fast discharge

[KD305]

Hi there
I recenlty bought a few logitech mx keys bluetooth keyboards from ebay, quite cheap:

- one with all the keys but the pcb seemed not to work at all even with a usb lead attached
- one missing a space bar
- one missing a enter key and unable to hold a charge

I have cobbled together the good parts and have two working keyboards. Th one that was missing the space bar now works perfectly. The other still has an issue remaining.

It still seems to discharge within a few hours from fully charged to nothing within a few hours. I have swapped the batteries between the keyboards, the other keyboard with the same battery will hold a charge (its been several days has not diminished at all)

What could be causing it to discharge, both have the same backlight settings on them.

 

[kellys_eye]

Since you have two working units you can power them both and compare measurements at points in the circuitry (say the onboard regulators etc) and report the results (or figure it out from there yourself).

 

[Lioness]

Since you have two working units you can power them both and compare measurements at points in the circuitry (say the onboard regulators etc) and report the results (or figure it out from there yourself).

I agree with you. That should help.