Draining the battery though the bootloader?

[srk468]

Hello everyone I hope I'm posting in the right spot but I have a Sprint TP and I read in the NRG Energy ROM thread that it would be a good idea to drain your battery though the bootloader until it dies and then let charge overnight. My problem is after I drained the battery I cant seem to get it to accept a charge now, like the phone needs to be on to charge the battery but there isn't enough power to turn on the phone? Anyone know of a way around this or do I just need to buy a charging dock for the battery it's self? Any advice would be appreciated!