gravity battery

15 LETTERS · STARTS WITH G

gravity battery is a valid 15-letter word worth 26 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

G2R1A1V4I1T1Y4B3A1T1T1E1R1Y4

2 + 1 + 1 + 4 + 1 + 1 + 4 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 4 =26 PTS

DOUBLE WORD → 52TRIPLE WORD → 78

MEANING

What does gravity battery mean?