オリジナル投稿者： jayeff ,
Hi, Does the clock work OK when the charger is connected to the unit? You didn’t specify. If it does and it doesn’t work when on battery only I’m wondering if the battery is failing and needs to be replaced. How old is the unit? Even rechargeable batteries have a lifespan. Here’s a link to the ifixit [guide|2954] guide which maybe of some help. Replacement batteries are available online. Just search for 6027A0090721 to get results for suppliers. Here’s a link to just one [https://www.ebay.com.au/itm/Battery-800mAh-type-6027A0090721-For-TOMTOM-Start-45M/282425559448?hash=item41c1e00998:g:BL0AAOSwuLZY1AdT&frcectupt=true|supplier]. It it shown only to give an idea of the cost of the part. There are other suppliers online that may suit you better.