09/10/2026
Think your hybrid’s battery is fully charged? Think again.
Hybrid and plug-in hybrid vehicles have two batteries with two very different jobs. While the high-voltage battery powers the electric drive, the separate 12V battery keeps essential systems running and helps the vehicle enter its ready-to-drive mode.
So even with plenty of charge in the high-voltage battery, a low 12V battery can leave you stuck.
Short journeys, long periods of inactivity, cold weather and an ageing battery can all affect your 12V battery.
Charge. Boost. Stay Ready.