MVS-1FS Battery Swap

[DarkSol]

Could I replace the OEM battery with a LIR2032 without having to remove the 430Ω charging resistor?

LIR2032s are rechargeable, IIRC.

 

[Kujako]

Yes, but not without some degree of risk. The Neo Geo will be providing 5v to recharge the 3.3v battery. This is outside of the specs of a LIR2032. While I have never seen a failure, it is possible that the over voltage could cause the battery to fail catastrophically.

for example: this one has a 4.2v maximum charge voltage.

 

[DarkSol]

Yes, but not without some degree of risk. The Neo Geo will be providing 5v to recharge the 3.3v battery. This is outside of the specs of a LIR2032. While I have never seen a failure, it is possible that the over voltage could cause the battery to fail catastrophically.

for example: this one has a 4.2v maximum charge voltage.

Hmm... that's good to know.

 

[Neo-Alec]

The LIR2032 just isn't worth it. It's difficult to install correctly and keep charged. You're much better off with a non-rechargeable CR2032 coin cell, which will last years.

 

[DarkSol]

The LIR2032 just isn't worth it. It's difficult to install correctly and keep charged. You're much better off with a non-rechargeable CR2032 coin cell, which will last years.

Can you point me to a good CR2032 holder? Obviously I only need 1, but Amazon has a ton and I want to make sure that it would fit.

 

[nem]

The Neo Geo will be providing 5v to recharge the 3.3v battery.

There's a resistor before the battery. Charging voltage should be around 3.7V.

I have rechargeable lithium coin cells in most of my Neo boards.

 

[Neo-Alec]

Update: The CR2032 I installed in my MV1C in 2017 died earlier this year. 2017-2026 R.I.P.