This series of comments and pictures I took a while back walks you through a typical replacement of the older 3.6 volt rechargeable barrel battery for older motherboards and some "super i/o" type ISA cards with a real time clock which required a battery. I hope it helps show you some of the steps and how to avoid problems. If you have not done one of these before you may overlook potential problems with corrosion or damaged paths on the board. The following was from a page on the original PCFixes.com site and has been adapted to fit into our new layout. If you have questions or comments, please use the contact page to let us know. Thanks
A "TYPICAL" LEAKY
BARREL BATTERY REPLACEMENT
The old leaky battery
The negative end - at first glance not so bad on corrosion, considering this battery was in the board over 20 years.
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