How to Replace Batteries In Your Sega Master System and Genesis Games

What did my girlfriend want for her birthday?  A Sega Genesis.  I’m so happy.  Unfortunately, my Generation 1 system disappeared a long time ago.  It never stopped working but I think I loaned it away and never got it back.  Therefore, I Ebay’d a new one (Generation 1 of course).

I knew that I saved some of my cartridges for a reason including the epic Phantasy Star series (my favorites).  However, I had two problems.

1) The beloved Phantasy Star 1 was not a Genesis game.  It was made from the precursor, Sega Master System (SMS).

Best game ever made.

Best game ever made.

2) Phantasy Star 1 was released in the US in 1988.  I bought it immediately.  Therefore, in this little plastic container was a 25 year-old battery!  I just hoped it wasn’t leaking all over the printed circuit board (PCB) by this time.
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