Batch Battery-Clip Install
OCD Repro was able to do this for a batch of 18 games I already owned. Very smooth transaction. Very quick turnaround. All batteries were upgraded to battery-clip. Probably erased my saves as a result but not having to ever solder new batteries is worth it. Batteries are nice upgrade from password system but a battery will go bad after 10-15 years so this is a good investment for a collector.