How to Safely Jump Start a Hybrid Car Battery

Hybrid cars have both a high-voltage hybrid battery and a separate 12V battery for electronics and accessories. When the 12V battery is dead, jump starting can restore power, but it must be done cautiously due to the sensitivity of hybrid electrical components. Because hybrid vehicles have delicate electrical systems that can be damaged by power surges, it is strongly advised to only jump start using a specialist booster pack designed to deliver the correct amount of amps safely. Using a donor vehicle's battery with jumper cables risks a damaging power surge.

Safe Jump Starting with a Specialist Booster Pack

Always use a booster pack specifically rated for hybrid vehicles to prevent damage.Make sure the booster pack is off, connect the positive (+) clamp to the hybrid’s under-hood positive jump terminal, and the negative (-) clamp to a grounded metal surface away from the battery.After securely connecting, turn on the booster pack and follow its instructions to start the hybrid vehicle.Once started, disconnect the booster pack clamps in reverse order.

Leave the hybrid vehicles running for at least 45 minutes to charge the 12V battery. Jump starting with traditional jumper cables and a donor vehicle should be avoided unless done by professionals using proper equipment, to ensure the hybrid's electronics are protected. When in doubt, call roadside assistance specialists for help.