When g-p-m doesn't have a complete profile of your battery, it tries to shutdown or hibernate when the known battery remaining is very low. If you've never tried to take your battery to 10%, g-p-m assumes it can't and calculates only the capacity it has seen being used.
This fixes many broken batteries. It also introduces a problem when you first start using the profiling code, in that g-p-m knows nothing about what the battery actually can do.
What about the following tooltip:
Laptop battery 30 minutes remaining (97%)
Battery discharge profile is estimated
Policy actions will not be performed until battery profiled
As usual, my spelling and grammar are sh1te and so suggestions welcome. The last line is far too techy, but I'm not sure what to write. Please add a comment to this blog (or email me) with better suggestions, thanks!