All night battery only charged to 30%?

[eric12341]

it seems my ongoing battery problems have entered a new stage. i am no stranger when it comes to posting about the problems ive had with my TP's battery for about almost 6 months now, this one is new yesterday i used my TP like normal till my battery was near being dead (about 6pm) and then by 10pm it was fully charged so then i started to make phone calls, after about 3 phone calls culminating around midnight i decide to goto bed and my phone had 1 bar of charge left (about 20% or so) so now i just woke up about a half hour ago and noticed that my battery only charged 10% in between now and midnight, how could this be possible if yesterday evening it was able to fully charge in 4 hours but couldnt charge fully within 6 hours? and sprint has done absolutely nothing to solve my problems (only saying to do a hard reset) ive had different battery problems all 6 months ive done many hard resets since then, my rom is NFSAN 1.05. any suggestions?