( ( The battery ) ( ( supplies ( energy ( which ( ( raises charge ) ( from ( ( low ( to high ) ) voltage ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN battery)) (VP (VBZ supplies) (NP (NP (NN energy)) (SBAR (WHNP (WDT which)) (S (VP (VBZ raises) (NP (NN charge)) (PP (IN from) (NP (ADJP (JJ low) (TO to) (JJ high)) (NN voltage)))))))) (. .)))
The battery supplies energy which raises charge             from low to high voltage.
(ROOT (S (NP (NNP Voltage)) (VP (VP (VBZ is) (RB not) (NP (NP (DT the) (JJ same)) (PP (IN as) (NP (NN energy))))) (, ,) (CC but) (VP (VBZ means) (NP (NP (DT the) (NN energy)) (PP (IN per) (NP (NN unit) (NN charge)))))) (. .)))