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What would cause the charge light to come on followed by the gas and temp gauge to drop off on a 1987 Toyota pickup battery appearers to recover its charge after it sits for awhile?

  Answer   The battery it self does not recover charge; The internal resistance of any battery will increase as it heats up - A good example is how a flash light wit (MORE)

Please explain the charging circuit in automobile. 1. How does the charging light comes on when ignition switch is turned on 2. How charging light comes on when alternator is not or less charging?

When the ignition is turned on, battery voltage passes down the wire to the alternator to 'excite' the alternator when the engine starts. When the engine starts and the altern (MORE)