If your car ceased to be started, the faulty accumulator can be the reason for that. You do not hurry to throw out it on a garbage can and to buy new. It is possible to try to restore the accumulator the hands.
It is required to you
- Fresh electrolyte of the nominal or increased capacity.
- The distilled water.
- Areometer.
- The charger calculated on small currents of a charge (0.05-0.4A).
- Additive for accumulators.
- Enema and pipette.
Instruction
1. There are several methods of restoration of accumulators: 1. Training cycles.2. Assembl/dismantling.3. Use of additives.4. Applications of pulse currents.5. Charge of joint stock bank reverse currents. However any of the listed methods has the shortcomings: from big labor costs and high cost of the equipment to a considerable expense of the electric power and damage of plates of joint stock bank. Therefore for restoration of the accumulator it is better to use an integrated approach due to which the price will considerably fall and time for work will be reduced.
2. For a start it is necessary to decide on possible malfunctions of joint stock bank and their characteristic signs: 1. Freezing. The swelled accumulator sides, at the very beginning of a charge, electrolyte begins to boil. In this case the joint stock bank is not subject to restoration.2. Short circuit of plates. In one or several sections of joint stock bank electrolyte constantly boils away. The accumulator is heated. 3. Destruction of coal plates. Color of electrolyte at charging becomes black. 4. Zasulfatirovannost of plates. Insufficient capacity of the accumulator (can reduce almost to zero).
3. For elimination of the malfunctions specified in subparagraph 2.3 of the second step it is necessary to wash the accumulator with the distilled water carefully. Continue to do it until from sections of joint stock bank the coal crumb and other deposits does not cease to follow. After that you pass to implementation of item 1. Fill in fresh electrolyte of nominal density in the accumulator and add additive (read the instruction on packing). Now the joint stock bank needs to be defended 48 hours. During this time it will be left by residues of air and also additive will work.
4. Connect the charger to output terminals of the accumulator and establish the charge current equal 0.1 A. Continue charging of joint stock bank until tension on terminals reaches 13.8-14.4 V. Daley it is necessary to lower charge current twice. If two hours of value of tension and density of electrolyte later do not change, switch-off the charger. Otherwise it is necessary to bring electrolyte density to nominal (1.4 g/cm3) by addition of the distilled water or electrolyte of the increased density.
5. Now discharge the accumulator (it is possible through a bulb) up to the voltage of 10.2 V, thus it is necessary to measure time and current of the category. On the obtained data calculate the capacity of joint stock bank, proceeding from a formula: Sr =Ip∙tp. If capacity was lower nominal, then the cycle "trainings" of the accumulator needs to be repeated several times, yet will not achieve necessary result. After that add a little more additive to joint stock bank and screw up all traffic jams. Your accumulator is restored and, most likely, will be able to serve to you couple more of seasons.