NEO-MVH MV1FS Battery Replacement?

Hansuke

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Just came into one of these in a cabinet and it's going to be my first mvs machine. Took a look at the board and the battery is really corroded, green acid on the coin battery, etc. Some of the acid has dripped onto legs of chips, but fortunately, everything seems to still be working.

I was wondering what's the best way to replace this with a coin battery holder and an equivalent rechargeable battery? I don't want to have to cut any traces to disable the charging circuit.

Is there a specific battery holder that's recommended?

Would it be alright to just remove the current battery while waiting for the replacement and will the mvs will still work fine? Well, without settings saving of course.

Also, would using IPA and a toothbrush be sufficient in removing the corrosion from the board and legs of chips?
 
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GohanX

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The work is the same, just don’t remove the resistor and use a rechargeable 2032.
 

Hansuke

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The work is the same, just don’t remove the resistor and use a rechargeable 2032.
Cool! Can you help me with my other questions that I have in the OP?

Also, do you have a product link to a specific battery holder?
 
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ack

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I'm pretty sure the spacing between the + and - through holes for the battery is 20mm, which is the standard distance you will find on most all 2032 holders.
 

Hansuke

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I'm pretty sure the spacing between the + and - through holes for the battery is 20mm, which is the standard distance you will find on most all 2032 holders.
I have some experience replacing the battery in Dreamcasts and those have a 3 pin layout for the 2032 battery holder.

Would a regular 2 pin 2032 holder work for the MV1FS and still enable the charging properly?
 

GohanX

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Cool! Can you help me with my other questions that I have in the OP?

Also, do you have a product link to a specific battery holder?
I don't have any recommendations for a specific holder, haven't ordered one in ages. Sorry.

The system will play just fine with the battery removed, just no saving settings and such.

IPA will work if the corrosion is very minor, but my go to is Deoxit. I love that stuff. Deoxit leaves a bit of a mess though so I usually clean up the Deoxit with regular contact cleaner (I buy electrical connector cleaner from the local auto parts store) or IPA. Deoxit won't harm anything if left on, but it's a bit greasy and will likely attract dust.
 

Hansuke

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I don't have any recommendations for a specific holder, haven't ordered one in ages. Sorry.

The system will play just fine with the battery removed, just no saving settings and such.

IPA will work if the corrosion is very minor, but my go to is Deoxit. I love that stuff. Deoxit leaves a bit of a mess though so I usually clean up the Deoxit with regular contact cleaner (I buy electrical connector cleaner from the local auto parts store) or IPA. Deoxit won't harm anything if left on, but it's a bit greasy and will likely attract dust.
Thanks for the tips about using Deoxit!
 
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