| Cause of malfunction | Method of elimination |
| Battery discharge during vehicle operation | |
| Alternator drive belt slippage | Adjust the belt tension |
| Generator faulty | Check the generator |
| Damage to insulation in the electrical system Connection of new consumers by the car owner beyond the permissible limits | Find the location of the current leak and eliminate the damage. Disconnect new consumers of electricity |
| Excessive contamination of the battery surface | Clean the surface of the battery |
| The electrolyte level is below the upper edge of the plates | Restore normal electrolyte levels |
| Short circuit between plates | Replace the battery |
| The battery is not warmed up due to low ambient temperature (at minus 20 'C and below) | Warm up the battery in a warm room to a temperature of plus 10-30°C and charge it |
| Electrolyte on the surface of the battery | |
| Elevated electrolyte level causing splashing | Set the electrolyte level to normal |
| Electrolyte leaking through cracks in the housing | Replace the battery |
| Replace the generator voltage regulator | Boiling of electrolyte due to very high generator voltage |
| Boiling of electrolyte and overheating of the battery due to sulfation of the plates | Replace the battery |
| The battery quickly discharges and when starting does not provide the required engine crankshaft speed by the starter | |
| Long-term switching on of high-power consumers (headlights, heater, etc.) while parked with the engine not running or at low crankshaft speed | Limit the number and time of switching on electricity consumers |
| Current leaks when the battery terminals are short-circuited by dirt or electrolyte on the surface of the cover | Clean the surface of the battery with a 10% solution of ammonia or soda ash |
| Short circuit in the electrical circuits of the car | Identify the circuit in which the short circuit occurred. Eliminate the short circuit |
| Sulfation of battery electrodes Oxidation of battery terminals and wire ends due to poor fastening at the connection points | Replace the battery Clean, secure and lubricate the wire ends and terminals with petroleum jelly |
| Malfunction of one or more batteries | Replace the battery |
| Rapid decrease in electrolyte levels | |
| Damage to the battery pack | Replace the battery |
| Overcharging of the battery due to increased charging voltage | Check the voltage regulator for proper operation and replace it if faulty |
The article was taken in its entirety from the specified website FORDBOOK