1) If a hybrid or electric vehicle is not driven periodically or is put into long term storage, the state of charge (SOC) of its battery pack will gradually decrease. Follow the O.E. Manufacturer’s charging guidelines to prevent the battery from discharging. In general, the battery pack on a HEV should be charged by the vehicle’s charging system at least once every 30 days. This procedure may take 30 minutes or more depending on the vehicle.
2) Make sure the high-voltage battery air inlet vent, duct work and battery cooling fan is kept clean and clear from any obstruction. It is very important to ensure proper ventilation to avoid overheating the battery.
3) Replace high-voltage battery air inlet filter, if equipped, according to specified intervals stated in the service manual, or if the filter is dirty.
4) Some vehicles use the HVAC system to heat and cool the battery. Make sure this system is working as designed.
The following tips will help maintain the proper operation of this part:
Use a vacuum to clean the duct work and fan at least every 24K miles or every 2 years.
Do not use compressed air to clean the fan blades.
Using compressed air can cause the fan motor to over spin which may result in failure of the motor.
Always remove service plug or turn off high-voltage switch first
Class-0 rated at 1000 volts with leather protectors
After plug removal, use certified DVOM (Digital Volt Ohm Meter)
Use caution when handling
Metal is a conductor that creates a hazardous work space
As batteries sit in storage, the modules begin to lose
charge and fall out of balance. CARDONE includes stickers
on both the shipping case and actual battery that clearly
indicate when the battery was last charged as well as the
last date it should be installed. If a battery is installed beyond the
60 day period, it will likely operate normally at first, but could be
prone to premature failure.
The flow of electrons in and from a battery is influenced by ambient
temperature with faster movement at higher temperatures. If a battery
is stored above 95° F, the electrons flow more freely and self-discharge
occurs faster. Batteries stored above 95° F may not safely reach their
full, storage shelf-life.
NEVER attempt to use external charging equipment on a
high-voltage battery; serious injury, battery damage and
property loss can result. CARDONE’s specialized equipment
properly recharges and rebalances batteries that have
exceeded shelf-life.