Fona 808 Battery Fuse

[Cyberduke]

Hi all

As you all know the fona 808 GPS module requires a 3.7v Lipo battery to operate in addition to a connected power source. I am using this module in a project that is entered into a competition and the rules of this state that I need to have ALL batteries fused. So my question is rather simple. Does anyone know what fuse I can use between my battery and Fona unit? I can test this myself but it is a lot of work and probably much easier to ask someone that knows.

I was looking through the documents but I could not find any mention of information that could be useful. All I could find was that it spikes high current draw. But no number mentioned.