Which hydrometer is used to check whether the battery is fully charged or not?

0 ⤊

Which hydrometer is used to check whether the battery is fully charged or not?

2006-07-23 04:37:26 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics

3 answers

Hydrometers measure densities of the electrolyte in batteries not voltages. So you do not need a hydrometer to check whether the battery is fully charged or not. You need a DC voltmeter.

2006-07-24 00:51:34 · answer #1 · answered by mekaban 3 · 0⤊ 0⤋

I use a volt meter to check the voltage. Most current batteries are sealed and you can't use a hydrometer.

2006-07-23 06:14:18 · answer #2 · answered by STEVEN F 7 · 0⤊ 0⤋

I used a floating ball type, calibrated for the specific gravity needed for lead-acid cells. Auto parts stores still sell them.

2006-07-23 04:45:40 · answer #3 · answered by gwhatch2001 3 · 0⤊ 0⤋