Charging Rate

The alternator output is controlled and changed to direct current by the voltage regulator.

The voltage regulator increases charging rate when battery is low or lamps are lit.
The voltage regulator decreases charging rate when battery charge is up.

NOTICE

It is possible to overload the vehicle's charging system by adding too many electrical accessories. If the combined electrical accessories operating at any one time consume more electrical current than the vehicle's charging system can produce, the electrical consumption can discharge the battery and cause damage to the vehicle's electrical system. (00211d)

A battery voltage LED in the instruments will light up when voltage is either too low or too high.

NOTE

This unit requires no interval attention. If any electrical system trouble is experienced that might be traceable to the alternator or voltage regulator, the motorcycle should be taken to a Harley-Davidson dealer who has the necessary electrical testing equipment to give the required attention.
For model specific information regarding the voltage regulator, refer to the appropriate Service Manual or see a Harley-Davidson dealer.