On May 28th, as a crucial component in vehicles, the role of the starter battery is indispensable. In the era of gasoline cars, lead-acid batteries were commonly used as starter batteries.
These batteries have a short lifespan, typically needing replacement every 2-3 years, and are prone to discharge. If a vehicle remains stationary for an extended period, it may fail to start due to discharge, requiring a jump-start or rescue, which is both costly and troublesome.
During the "BYD's 5th Generation DM Technology and Launch of Qin L and Han 06" event held tonight, BYD announced that the starter battery for its plug-in hybrid models will be replaced with a 12V lithium iron phosphate battery, a global first.
The BYD 12V lithium iron phosphate small battery weighs only 2.2 kg, 10 kg lighter than traditional lead-acid batteries. It has a self-discharge rate of only 0.02 kWh/month, one-fifth of lead-acid batteries, with a charge-discharge efficiency of up to 94%, 9% higher than lead-acid batteries.
Crucially, the lithium iron phosphate battery has a cycle life of over 3000 times, eliminating the need for replacement throughout the vehicle's lifespan, with an official warranty of 6 years or 150,000 kilometers.
Furthermore, BYD has equipped it with a Battery Management System (BMS) that can supplement power from the main battery when the charge is low. This ensures that even if the vehicle is left idle for an extended period, issues like failure to start or unlock the doors will not occur.
Additionally, the lithium iron phosphate starter battery is compact, saving interior space, lightweight, reducing overall vehicle energy consumption, and being lead-free, making it more environmentally friendly.
