SuperSmashMedia® - 5 x GameBoy Battery CR1616 Replacement with Tabs for Pokemon Emerald/Ruby/Sapphire [5 Pack]

Works well, resurrected a 23-year-old Game Boy cartridge which had lost its ability to save. Just make sure you check you have the right battery before ordering. Some use these, whereas others use the larger CR2025. You'll also need a soldering iron, solder, de-soldering wick, and a Gamebit screwdriver.

Works fine. Soldered into an old gameboy cartridge so if you’re wondering if it fits, it does. Only problem I saw was that they normally have a + & - symbol to clearly show which side is which. You can figure it out easy enough but could be confusing and annoying if you happen to solder it in the wrong way round and re do it.

Brought for replacing my GB game batteries. Worked like a charm.

They work. Not sure for how long though. The tabs are a little bit flimsy.

Replaced the dead battery in a Pokemon GBA cartridge. Once soldered in worked perfectly!

Good batteries. All hold the correct charge. These are hard ti find elsewhere

had to replace pokemon red battery. works like a charm

Arrived quick and sorted the problem out easy