It's true. I've fully charged and discharged my battery (although most of the time I charge before it gets into the red) and it lasts 2 and 3/4 years. It still works but I have to charge every 2 days. I got a new battery and now I charge once a week. (all times quoted with bluetooth disabled).

So yeah.. having one that lasts 4 years is something to talk about.

Mods: EV mod, VVT-i emblem, sport pedals, OEM cargo mat, JDM Prius interior footwell lighting, Sylvania Silverstars 9003ST, DICE iPod kit, OEM all-weather mats, TomTom ONE v2, LED licence plate lights.