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Inspection
Preventative Maintenance
Damaged connectors, contacts and cables may present hazards, resulting in inefficient battery and char-
ger operation. To avoid these problems, conduct the following maintenance checks at least once annu-
ally. If you see any of the following problems, take corrective action immediately.
Inspection
Check contact surfaces for signs of “pitting” caused by dirt or disengaging connectors under load. One
badly pitted contact, particularly in a connector attached to a battery charger, can lead to pitting on
surfaces of other contacts. If not corrected, this can result in an epidemic of bad connectors throughout
a fleet of electric vehicles and in chargers and batteries.
Check to see if batteries are being disconnected while the charger is still on. This causes the contacts to
arc at the tips, resulting with progressive pitting and silver removal from tip to crown. If this practice is
occurring, discontinue it now to avoid major repairs in the future.
