I get the same as CruzThs. Its not a problem for me, it just makes me feel dodgy when the battery icon comes on.

As for rebooting, my empeg normaly reboots when i turn the engine on, or off then on, depending on how quickly the engine turns over. If it goes "chchchchchchchchchchvroooom" it will reboot, if it goes "chchchvroom" it wont. However, ive not done any scientific tests, so its probably just random. either way, i dont care, it still works, and it appears to do no damage..