primary battery

15 LETTERS · STARTS WITH P

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

SCRABBLE WORDS WITH FRIENDS

P3R1I1M3A1R1Y4B3A1T1T1E1R1Y4

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

DOUBLE WORD → 52TRIPLE WORD → 78

MEANING

What does primary battery mean?