オリジナル投稿者： Minho ,
It could be a bad replacement battery. If the original battery was still usable, I would re-install it to see if the problem is consistent with the board or the battery. However, the symptoms look more like the battery SWI line was damaged. Look for damage in the area surrounding the battery connector. Sometimes components get damaged when lifting the connector and some of those connectors allow the battery to communicate it’s charge state to the CPU. When they are damaged or missing, the device behaves just like yours.