NES Cartridge Battery Replacement Guide

Is your beloved NES game no longer saving your progress? Chances are, the internal battery has finally given out. But don't fret! In our NES Cartridge Battery Replacement Guide, we'll show you exactly how to replace the battery in your NES cartridge.

Music used.
Intro: "Pixelland" by Kevin MacLeod
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[ZeroTheth]

Great guide! Something every retro gamer needs to know about

[MrUnknownName]

Is it only the NES games in NTSC versions who have these batteries in them? I have never seen any PAL NES games with functions for saving the game yet as I have opened who had these batteries in them.

[ninjaguyYT]

I hate how difficult they make this stuff. I applied solder and resin and it still wont pop off. I even used copper (it stings if you hold the copper lol).

I'm not applying too much soldering iron to the connectors because batteries get set on fire if it's too hot, but it seems like I have little recourse.

Gameboy batteries are so much easier to desolder, though you shouldn't have to do that at all when so many devices exist that run on 2032 without soldering being needed.

[chadcoady]

Hmmm....I wonder if it's possible to replace the battery without losing your save?