uhm - 13amp is really for kettles and crap
It will be ok but a tad too high fuse for just a 3 to 5 amp psu
Ye ol' PC power leads often came with a 13amp fuse when really they should come with a 5amp fuse
the 2in1 or 3in1 UK plug adapters come with 13amp which is fine if the actual device has the correct fuse in its own plug
If you haven't got a fused plug on a USA or EU plug then the US/EU adapter perhaps should drop to a 5amp
Not trying to $hit you up, but 13amp is for kettles, toasters, bar heaters etc...
Most other stuff - even your STFU TV will have a 5amp fuse in most likely
Table lamps 3amp
It will be ok to use provided you monitor it closely
which you should always do anyway - not charge the thing & go out
soz for post but just pointing out the fuse is a bit high imho for a charger