lead-acid accumulator

NOUN
21 LETTERS · STARTS WITH L

lead-acid accumulator is a valid 21-letter word worth 29 points in Scrabble and 37 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
L1E1A1D2-0A1C3I1D2A1C3C3U1M3U1L1A1T1O1R1
1 + 1 + 1 + 2 + 0 + 1 + 3 + 1 + 2 + 0 + 1 + 3 + 3 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =29 PTS
DOUBLE WORD → 58TRIPLE WORD → 87
MEANING

What does lead-acid accumulator mean?

NOUN · 1 SENSE
1

A battery with lead electrodes with dilute sulphuric acid as the electrolyte; each cell generates about 2 volts.