floating battery

16 LETTERS · STARTS WITH F

floating battery is a valid 16-letter word worth 24 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

F4L1O1A1T1I1N1G2B3A1T1T1E1R1Y4

4 + 1 + 1 + 1 + 1 + 1 + 1 + 2 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 4 =24 PTS

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does floating battery mean?