crwdns2934241:0crwdne2934241:0 oldturkey03
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@marcusrexcus both the system battery and the RTC battery are lithium batteries. Download the service manual from here [document|31546]. Page 44 will show you how to change the battery and even the part number for a proper replacement. The same manual, on page 53 will show you how to replace the RTC battery. Part number is also included.
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open