Filling with electrolyte, checking and charging the battery (Mitsubishi Colt 4)

If the battery is fully charged and one of the cans has a density value that is 0.025 g/cm³ higher or lower than the values in the other cans, and it is possible to check the voltage on each can with a voltmeter to determine a short circuit (checking for 4-7 seconds should give a voltage value of 1.2 to 1.8 V), then it is possible that the electrolyte has "left" the can with a low voltage value or the battery is reaching the end of its service life.

Charging the battery

In winter, when the battery is subject to heavy loads, such as starting the engine in cold weather, and many electrical consumers are constantly running, it is recommended to occasionally recharge the battery from an external source with a current of 3.5 to 4.0 A. The charging duration should be such that there is no increase in the electrolyte density value within 4 hours.

Another method would be to charge at 1.5A overnight.

The original article is on the website: MitsubishiMan