A power battery is a battery that powers a transportation vehicle, generally compared to a small battery that supplies energy to a portable electronic device. An ordinary battery is a lithium metal or lithium alloy as a negative electrode material, and a nonaqueous electrolyte solution is used. The primary battery is different from the rechargeable battery lithium ion and lithium ion polymer battery. In the case of new batteries, the battery capacity is tested by a discharge meter. The capacity of a general power battery is about 1000-1500 mAh; while the capacity of an ordinary battery is above 2000 mAh, and some can reach 3400 mAh.
A 4200mAh power battery can discharge the power in just a few minutes, but the ordinary battery can not do it, so the discharge capacity of the ordinary battery can not be compared with the power battery. The biggest difference between a power battery and a normal battery is that it has a large discharge power and a high specific energy. Since the main use of the power battery is the vehicle energy supply, it has a higher discharge power than the ordinary battery.
The battery that provides driving power for electric vehicles is called a power battery, including traditional lead-acid batteries, nickel-hydrogen batteries, and emerging lithium-ion power lithium batteries, which are divided into power-type power batteries (hybrid vehicles) and energy-type power batteries. (Pure electric vehicles); Lithium batteries used in consumer electronics such as mobile phones and notebook computers are generally referred to as lithium batteries, which are different from those used in electric vehicles.