v.2025-09-13
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Wobkey Std Edition Rainy 75 Batteries

New Ali Express Batteries

  1. 40$ for 2 Batteries
  2. ali express link
  3. Brand Name - LISM
  4. Origin China
  5. Certification CE,FCC,KC
  6. LJXH might be company name
  7. 1574ACB02
  8. G820E1 YL
  9. 3500mAh
  10. Standard GB 31241-2022

Questions/Tests/Installation

  1. I installed one battery on the right channel instead of the default left channel to see if it would work
  2. It did and fully charged only shows max power at yellow level 5
  3. I connected 2nd battery to left channel so both channels are used now.
  4. Took over 2 hours to charge and pulled 8 amps
  5. Now see max power at 9/0 green.
  6. From this pretty sure both are being used now.

New Batteries Picture

Original Battery

  1. I got the rainy 75 standard edition instead of the pro, so it came with only one battery.
  2. This single 3500 mAh battery has been very flakey.
  3. Charge never gets full on it
  4. Keyboard freezes every now and then. Like it's in a sleep mode or something.
  5. I really think all the problems I am having with this keyboard are due to this battery.
  6. After one to two hours of use it drops from level 9 to level 3,2,1.
  7. So I purchased two new batteries off of ali express to see if I can fix it and get the longer pro battery life 7000 mAh vs 3500 mAh
  8. There was some kind of tape glue that held it in place and it bent it trying to extract it
  9. Not sure how safe it is now or if it even still works. I did not use tape glue on new batteries.

Original Battery Picture