How To Read A Battery Hydrometer. Drops of sulfuric acid might spring up from the battery. How to Do a Hydrometer Check.

Disregard the curvature of the liquid where the surface rises against the float stem and the barrel due to surface tension. You should see fluid filling the hydrometer. A hydrometer reading of 1265 indicates a fully charged battery.
Many inverters or charge controllers have a battery temperature sensor that you attach to the battery bank somewhere to monitor temperature.
Continue to squeeze the bulb until the battery electrolyte solution fills the device to. Scale Description Z-1G 1100 1350 Industrial grade hydrometer with heavy duty glass float 1353 -20 130 F Thermometer includes SG. How to Do a Hydrometer Check. A common specific gravity reading is 1250 to 1280 in most climates for a fully charged battery with a reading of 1210 to 1230 in tropical climates.
