So, the battery life seems decent so far but who's happy with decent?
First, power adapters.
So the news appears good. The A7+ (and I assume the original A7) seem to use a standard 19v notebook power source. Not quite as good as USB, but still, virtually ANY universal notebook power supply should work.
I'm using a KROSS brand adapter personally.
Second, external batteries.
Same story as the power supplies, any universal notebook external battery should work.
I'm personally using an iRecharge by Cellboost. The nice thing is that it uses the same adapter tips as the KROSS power adapter I'm using. Very convienient when I'm on the road.
Lastly, car adapters.
I don't have one yet, but I'm checking.
This one appears to use the same tips as my current A/C brick and battery:
Sent from "Mighty Mouse", my Elocity A7+
Sony Xperia ION "The PDA" (Quad-Band UMTS, 1.5Ghz Qualcomm 8260, Stock Jelly Bean) - my main brain
Alcatel OT-909s "The Phone" (Dual Band UMTS, 600Mhz Qualcomm 7227, Stock Gingerbread) - down for repairs
Alcatel OT-981a "The Backup" (Dual Band UMTS, 600Mhz Qualcomm 7227, Idontknow186's Gingerbread ROM) - my main phone
Motorola Spice XT300 "The Project" (Dual Band UMTS 528Mhz Qualcomm 7225, Modded stock Eclair) - WIP