I. Different in nature
Power lithium batteries refer to batteries that supply power to transportation vehicles, generally in contrast to small batteries that supply energy to portable electronic devices; while ordinary batteries are primary batteries that use lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution, which are different from rechargeable lithium-ion batteries and lithium-ion polymer batteries.
II. Different battery capacities
When all batteries are new, the capacity of a power lithium battery is tested with a discharge tester. The capacity of a power lithium battery is generally around 1000-1500mAh, while the capacity of a regular battery is over 2000mAh, and some can reach 3400mAh.
III. Differences in voltage
Generally, the operating voltage of a power lithium battery is lower than that of a regular lithium battery. The maximum charging voltage of a regular lithium-ion battery is 4.2V, while the maximum charging voltage of a power lithium battery is around 3.65V. The nominal voltage of a regular lithium-ion battery is 3.7V, while the nominal voltage of a power lithium-ion battery is 3.2V.
IV. Different discharge power
A 4200mAh lithium-ion battery can be completely discharged in just a few minutes, something a regular battery simply cannot do. Therefore, the discharge capacity of a regular battery is incomparable to that of a lithium-ion battery. The biggest difference between lithium-ion batteries and regular batteries lies in their higher discharge power and higher energy density. Because the primary application of lithium-ion batteries is in automotive power supply, they require significantly higher discharge power compared to regular batteries.
V. Different Applications
Batteries that supply driving power for electric vehicles are called power lithium batteries, including traditional lead-acid batteries, nickel-metal hydride batteries, and emerging lithium-ion power batteries. They are divided into power lithium batteries (hybrid electric vehicles) and energy lithium batteries (pure electric vehicles). Lithium-ion batteries used in consumer electronics products such as mobile phones and laptops are generally referred to as lithium-ion batteries, to distinguish them from the power lithium batteries used in electric vehicles.
