Short guide to upgrading battery of a Wireless logitech G930 headset.
Step 1: Remove the Battery
Follow this picture to remove the existing battery
Step 2: Unsolder the Molex Plugs.
Already done in this picture, the 3 solder points on the IC board is where the wire was.
Step 3: Find a 3.7v Battery Lying Around, and Solder the Wires on the Contacts.
Red to positive, black to negative, yellow/green to the last contact.
Obviously, pick a battery with the same voltage, and preferably, also LI-ion, but with a bigger capacity (thats why its an upgrade right?)
All LI-ion battery should be 3.7v, so dont have to worry too much.
Step 4: Cut the Battery Holder
Using a rotary tool, cut the battery holder if needed to accommodate the new battery
Step 5: Plug In, Arrange Cable
Dont cover back, to have access for feel/visual inspection of the replacement battery. On any signs of thermal runaway, you are able to react.
Anyways all LI-ion battery is always 3.7v, only the capacity differs due to cell arrangement.Dont worry about exploding blablabla. Only way for LI-ion to explode is an internal short leading to thermal runaway, and it dont happen instantly, theres a build up of heat during charging before it explodes.