It so happens that after a day of inactivity, the car cannot be started, the starter does not turn. The battery is discharged in a day, despite the fact that you charge it from the mains for a long time. The diagnosis is simple - the density of the electrolyte in the battery has dropped. With prolonged recharge, the electrolyte boils and evaporates, and its volume decreases. On the advice of manufacturers, distilled water is added to the battery, but few measure the density at the same time. And since not only water boils away, but the electrolyte too, its density decreases. It's time to increase the density.
It is necessary
Hydrometer, pear-enema, measuring glass, electrolyte, battery acid, distilled water, baking soda solution, drill, soldering iron
Instructions
Step 1
The first thing to start with is to measure the density of the electrolyte in each battery bank separately. The density should be in the range from 1.25 to 1.29 - a lower indicator for southern regions with warm winters, a higher indicator for northern regions with cold summers, and the spread of readings across banks should not be 0.01. If the density measurement showed that its value is in the range of 1, 18-1, 20, then it is quite possible to do with adding electrolyte with a density of 1, 27. First, bring the density to the required one in one jar. Pump out the electrolyte using a "pear", pump out as much as possible, measure the volume, add fresh electrolyte in half the volume of the pumped out volume. Rock the battery from side to side and measure the density. If the density has not reached the desired parameter, add more electrolyte in a quarter of the volume of the pumped out. With further toppings, reduce the volume by half until the desired density is reached. And when the desired density is reached, top up the remainder with distilled water.
Step 2
If the density falls below the limit of 1, 18, then the electrolyte will not help here, you need battery acid. Its density is much higher, because the electrolyte is prepared from it by mixing with distilled water. Carry out the work in the same order as when adding electrolyte, but in this case, the procedure may have to be repeated if after the first stage of dilution the density does not reach the desired value.
Step 3
Another method involves a complete replacement of the electrolyte in the battery. To do this, pump out the maximum volume of electrolyte using a "pear", hermetically close the ventilation holes of the plugs of the battery cans, put the battery on the side and in the bottom of the battery, with a drill for 3-3, 5, drill holes, alternately in each can, not forgetting when then drain the electrolyte. Then we rinse the battery inside with distilled water. We seal the drilled holes with acid-resistant plastic, preferably with a plug from another battery. And we fill in fresh electrolyte, it is better to cook it yourself with a density slightly higher than it should be for your climatic zone.
