Olympus Digital Camera batteries

I have an olympus tough 850SW camera and need to replace the battery. Has anyone come across a shop that sells olympus cameras and / or olympus digital camera batteries?

Have you checked the camera street? (can’t give you exact directions, but get off the MRT at the main station, head towards the Nova computer market, keep it on your left and keep walking for about 5-7min and the camera street will be on your left).
Or you can try online although none of those are original and this seems to be a hard thing to find here.