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How many years does an NES cartridge battery last?

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  • What? You mean they are battery driven and loose all savegames when the battery dies? Oo Does that only affect the savegames or will it make the whole game unplayable?
    – Dave
    Commented Jul 8, 2010 at 10:37
  • 2
    @Dave: Only save games
    – Kip
    Commented Jul 9, 2010 at 12:50
  • Someone oughtta figure out a way to replace/recharge those, otherwise my collection is going to devalue seriously right before they become serious collectors items :-p
    – Ritwik Bose
    Commented Jul 12, 2010 at 1:47
  • @Mechko: they've been replacing them for years: the9thkey.com/games/Nesbatt.htm
    – MGOwen
    Commented Sep 2, 2010 at 5:31

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35

According to this page, the batteries last 15-20 years.

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  • 1
    may come in handy one day
    – Keaanu
    Commented Aug 17, 2010 at 0:17
  • 2
    Wow. Truly impressive quality, considering 5-10 years wouldn't have hurt their sales in the slightest.
    – MGOwen
    Commented Sep 2, 2010 at 5:32
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    While batteries do eventually die, only save games are affected by a dead battery. At least that's the way it works on my gemfire game.
    – user286231
    Commented Jan 27, 2022 at 21:13

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