li-ion battery replacement

Good morning :)
My father bought a FHD 170/5 action camera by Telefunken, but now the 
battery has died.
I can't find replacements anywhere except ebay, but the shipping to 
germany is 4 times as much as the battery itself.
Maybe this battery is used under a different name in another device, but 
I don't know how to tell if a specific battery would work.
As you can see in the attached picture, it says BL-5C and I found for 
example Nokia batteries with the same description, that look like they 
might fit and are only 30mAh away from the 1050mAh in this one.
So my question is: is it likely to work and should I try?

Ps: the Telefunken customer support is not responding at all. It has 
been almost 2 weeks.