Original battery still works

[oldhpfan]

So my prime has been sitting around for 5 years. Never charged in that time. So imagine my surprise when after 30 minutes of charging it turned on (I tried at 10 and 20 minute points). And it seems to be holding a full charge. I've been writing software directly on it and relearning its capabilites for the last couple of weeks and only recharged it twice. I'm going to get a g2 and larger capacity battery and keep the old one as spare to be safe but it's interestig i've always heard Li battery should be stored around 50% but this one did fine at 0%...sample of one of course.