Logitech Freespace MX Air mouse : How to replace battery

Stage 1 Initially, make sure the mouse is shut off. There are 2 small short screws near the top and two small longer screws near the contacts at the bottom. Remove all 4 screws. Carefully open the two halves without disconnecting any cables. Slide the larger ribbon cable out from it's retainer. It should come out easily, but don't put stress on it. This will allow you to get the back further out of the way. Then see 4 larger short screws holding the front on. Stage 2 These screws are all near the battery. This separates the front, but you have to lift the front at the bottom and slide it down to get it open. Once that's open you will see the battery. It is not secured with screws, but can be dropped out. Insert the new battery then slide the front back on towards the top. It can be a little tricky to get it lined up properly. Once that's slid in from the bottom you can press the bottom of the front in place. Then reinsert the 4 larger screws to secure the front, return the ribbon cable under its retainer and close the back. Finally put the mouse in its charger. If you did everything correctly the mouse should start to charge.