Boot without battery?

[pleasejustboot]

Should the HTC Thunderbolt boot without a battery, with just a power cable? Have a supposedly "dead" one I'm trying to troubleshoot (won't boot at all)... wanted to check this with fellow Thunderbolt owners before I spent $ on a battery...

 

[Rukbat]

If the power supply can supply the close to 1 Amp the phone needs to run, yes. But USB 2.0 supplies 0.1A, which is not enough to run a phone, and even most chargers are meant to just charge the battery, they don't supply enough power to run the phone. You'd be lucky if the phone turned on long enough that you could see it turning off. Go to an independent cellphone shop and see if you can buy or borrow a used battery. (They usually have batteries that they've yanked out of crushed or smashed phones.)