Do hybrid vehicle batteries have a 'break-in' period?

No. It is not reasonable that the dealer said it will take 3000–5000 miles until the battery can fully charge. read more

Batteries vary, and you got a bad one. After many charging cycles, battery capacity decreases as defects form in the electrodes. They do not improve with age or “break-in,” period. Your dealer should replace the battery with one that performs as promised, just as it should stand behind any other spec. read more

To make the vehicle engine operate in a more efficient regime, load is placed on the engine from the hybrid system and the excess energy produced is stored in batteries, hydraulic accumulators, ultra capacitors or in flywheels. read more

It’s called the break-in period, and it’s essential to your car’s wellbeing. Like your feet in a new pair of shoes, your car’s parts need time to settle in before you break into a run. First things first: read the owner’s manual. read more