2. If a maintenance-free battery is used, the electrolyte level cannot be checked.
3. Disconnect and clean battery terminals and wiring periodically. After installing them, lubricate the exposed metal with petroleum jelly.
4. Check for corrosion on battery clamps and platform. If so, remove the battery, clean the deposit with a wire brush and anti-corrosion liquid, then paint the treated surface.
5. When removing the battery, always check for cracks or leaks.
6. If the battery needs to be replenished frequently, and the case is not broken and the battery is not charging, the voltage regulator must be checked.
7. If the vehicle has low annual mileage, check the electrolyte density every three months to determine the state of charge of the battery. Use a hydrometer to determine and compare the results with the following table.
normal climate | Tropics | |
Discharged | 1.120 | 1.080 |
semi-charged | 1.200 | 1.160 |
Fully charged | 1.280 | 1.230 |
8. If the battery is suspected to be in poor condition, first check the specific gravity of the electrolyte in each cell. A difference of 0.040 or more between any cells indicates loss of electrolyte or deterioration of the internal plates.
9. Further testing can be done with a discharge meter. The battery must be discharged three times within a maximum of fifteen seconds while loading the amp-hour capacity (at a discharge current of 20 A-hours). Alternatively, connect a voltmeter across the battery terminals and rapidly turn the engine over with the starter with the ignition disconnected (see Section 4), and the headlights, rear window defroster and heater blower on. If the voltmeter shows more than 9.6 volts, the battery condition is satisfactory. If the voltmeter shows a voltage below 9.6 volts, the battery is defective.
10. In winter, when the battery needs more power (starting a cold engine and using more electrical equipment), sometimes it's good to have a battery fully charged with a current of 10% of the battery capacity on hand (those. 6.3 Amp for 63 Ah battery).
11. Disconnect the battery wiring before connecting the charger. Continue charging the battery until the density rises for four hours.
12. Alternatively, it is safe to use a 1.5 amp charger.
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