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HiTech's avatar
HiTech
Explorer
May 23, 2013

Checking hydrometer accuracy with charged battery voltage

Is it true that: Specific Gravity = Cell Open Circuit Voltage - 0.845? Could one average the specific gravity readings across cells in a battery, and use this formula to check the accuracy of th...
MEXICOWANDERER's avatar
MEXICOWANDERER
Explorer
May 28, 2013
Hi Tech, do it the old fashioned bass-ackwards way. Get your hands on a flask of guaranteed brand new electrolyte that certifiably has the OEM density posted on the container.

Then go from there...

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