How to change out a battery for your wireless mouse

**Why change it?**

You might want to change your mouse battery for a few reasons like increasing your mouse’s battery life or more commonly done to reduce weight.

**Choosing the battery** (**Very important**)

Choosing the battery of your mouse is super important because it can destroy the mouse and the battery. First of all make sure that the battery you think of putting in your mouse is the same type of battery already in your mouse (For example, mostly used are LiPo batteries but make sure which battery your mouse is using before changing it out). Make sure that the voltage of the battery is the same and of course if the battery connector is the same type (there is a way to get around this a bit later). Most wireless mice have a two pin connector or a three pin connector. Then determine what kind of connector it is (The third cable other than red and black is commonly used to monitor the battery level). Also some mice don’t work without the default battery PCB, so if your mouse is not charging after accumulator swap - it means that this mouse needs the factory PCB with all 3 wires connected to work. You can also desolder the stock accumulator from the stock PCB, then solder up the new accumulator to the stock PCB and it should work.: **(Someone who has better knowledge of this please write here).**

**What to do if your mouse uses AA, AAA batteries**.

If your mouse is using them you can still mod your mouse with different batteries. Lithium batteries are the lightest ones you can use and that already can decrease some weight. If your mouse uses AA batteries you can get an adapter or use some aluminium foil so you can put in a AAA battery therefore decreasing more weight. There is also an option to use a rechargeable battery and mod your mouse so it’s rechargeable, a good video about this is a video by Beardedbob modding a model O-:

**If the connector isn’t the same**

You’ll need: Soldering station, solder, electrical tape/ or heat shrink.

If the connector isn’t the same, still make sure that the replacement battery also has the same amount of wires as the old one. Take the old and new battery and see which wire is what on each battery. On most mice batteries the red wire is positive, black is negative and if you have a battery with three wires then the white one is signal, make sure to never mix these up. After understanding which wire should go where, snip off the old battery connector but make sure to leave some wire so that you can solder on the new battery. When snipping the old battery connector off make sure to only snip one wire at a time. After snipping one wire, cover it with electrical tape (the wire on the battery side) so that the wires don’t touch. Then do the same for the new battery. After the connector and the new battery are both prepared you can start soldering the wires together (make sure they go to the right wire multiple times to not make any mistakes). After soldering together two wires make sure to cover the solder point with electrical tape or put heat shrink on one of the two wires you want to solder together and then heat shrink it so that the solder joints don’t show **do not pass this step or the solder joints can touch and kill the mouse/battery.** After soldering up each of the wires to the right place the battery is prepared to go in the mouse.

**How to change the battery**

You’ll need: New mouse feet, double sided tape, some kind of plastic prying tool (like a spudger).

Open up your mouse and disassemble it enough to take out the old battery. Be careful while removing it, because it can still be useful (Be careful not to use any sharp or metal objects to remove the battery so that it doesn’t pierce it which can cause smoke to come out of it). After removing the old battery you can start trying different places to put in the new battery. Look where it will fit but try not to put it on the PCB because that can potentially cause some problems. Ifou are trying to change the weight balance of your mouse, then this is one way to do it, just try different battery placements. After finding a good spot for the battery, stick some double sided tape on it and stick it in place, then check again if the wires are in the same place and connect it and that's the mod done.

something something enncoo battery modkit idk what to put here somebody else do it for me https://enncoo.com/products/enncoo-modkit-for-mouse-modding (yeah really should do this ya know)