PGM battery variations

[shmupsrocks]

I've read that the PGM motherboard has issues with leaky batteries but mine and most of the ones I've seen online have a coin battery. Are those all modded or were some PGM motherboards shipped with coin batteries?

[RWK]

Hi there,
it seems there are multiple revisions of the IGS PGM, version 3 seems to come with coin battery in a holder stock.
I have had some of the older revisions modded with coin battery holders, if you still have the barrel battery replace it asap.

[shmupsrocks]

Interesting! How can you determine the version of a PGM motherboard?