I searched the forums and found two or three users say they ordered this battery and were awaiting its arrival but I cant seem to find any reviews/info about Gorilla Gadget's 3500mAH battery. i am thinking of buying one so I would be grateful for any info you guys may have.
Did 6 hours of GPS driving - no charging to test how good it was - had 25% left
Do search for Gorilla - first 6 are informative. Look on ebay for Thunderbolt chargers + free shipping, will find charger plus two battries for $20. Will have to wait maybe 3 weeks for delivery from China but as long as they have CE (European UL) rating should be ok. Ordered - waiting.
Also look at makings, appears to be 2 different types or single one with old / new style info layout. CrashGordon had his before I got mine. If you need it quick Gorilla Gadgets got it to me within a week over Christmass.