The power battery is the power source that provides the power source for the tool, and usually refers to the battery that provides power for electric cars, electric trains, electric bicycles, and golf carts.
It is mainly different from the starting battery used to start the car engine. Mostly use valve-sealed lead-acid batteries, open-ended tubular lead-acid batteries and lithium iron phosphate batteries.
Lithium-iron battery is a new type of green high-energy chemical power source that was launched by the U.S. Yongbei company after 2000 and successfully marketed. It is very superior in the application of electronic equipment and electric toys that require high-energy and high-power power. Performance. When the discharge current is above the medium discharge current, the discharge time of the lithium iron battery can reach about 6 times that of the alkaline manganese battery; compared with the nickel hydrogen battery, the discharge voltage is stable and the storage time has significant advantages.
In general, lithium iron batteries have the following outstanding advantages:
1. Interchangeability with alkaline manganese battery, it can be interchanged with alkaline zinc manganese battery for any purpose;
2. It has a longer working time and a higher and flatter working voltage, especially when the discharge is above the medium current;
3. Environmentally friendly green power supply, no mercury, chromium, lead and other toxic substances are used;
4. The storage performance is good, and the storage period can be as long as 10 years.
Battery model: LFB14505 (AA)
Discharge capacity: greater than 2700mAh (under 1000mA discharge current)
Discharge voltage: ~1.45V (under 200mA discharge current)
Storage life: 10 years
Ni-MH rechargeable battery
As the cadmium in nickel-cadmium batteries (Ni-Cd) is poisonous, the waste battery processing is complicated and the environment is polluted. Therefore, it will gradually be replaced by nickel-hydrogen rechargeable batteries (Ni-MH) made of hydrogen storage alloys. In terms of battery power, nickel-metal hydride rechargeable batteries of the same size have about 1.5 to 2 times higher power than nickel-cadmium batteries, and are free of cadmium pollution. They are now widely used in various small portable electronic devices such as mobile communications and notebook computers. . Nickel-metal hydride batteries are composed of hydrogen ions and metallic nickel. They have 30% more power reserve than nickel-cadmium batteries, lighter than nickel-cadmium batteries, have a longer service life, and have no pollution to the environment. Larger capacity Ni-MH batteries have begun to be used in gasoline/electric hybrid vehicles. Ni-MH batteries can be used for rapid charging and discharging. When the car is running at high speed, the electricity generated by the generator can be stored in the on-board Ni-MH battery. When the car is running at low speed, it usually consumes a lot of gasoline than the high-speed state. Therefore, in order to save gasoline, the on-board nickel-hydrogen battery can be used to drive the electric motor to replace the internal combustion engine. This not only ensures the normal running of the car, but also saves A lot of gasoline.