What are the advantages and disadvantages of electric wheelchair batteries

Nowadays, in order to build an environmentally friendly society, there are more and more products that use electricity as energy, whether electric bicycles or electric motorcycles, a large part of the things that use electricity as energy are used in transportation tools, because electric products have A big advantage is that its horsepower is small and easy to control. Nowadays, various kinds of goods are emerging in an endless stream, and electric wheelchairs, a more special transportation tool, are also heating up in the market. However, many electric wheelchairs now basically use lithium batteries as the power device of the wheelchair. In particular, the proportion of lead-acid maintenance-free batteries is particularly high.

Next, we will analyze the advantages and disadvantages of lithium-ion batteries:
The advantages of lithium batteries are mainly manifested in:
1. Long service life, the service life can reach more than 3-5 years. The battery with lithium iron phosphate as the positive electrode is charged and discharged with 1CDOD, and there is a record that can be used for 10,000 times;
2. The self-discharge rate is very low. This is one of the most prominent advantages of the battery. Currently, it can generally achieve less than 1%/month, which is less than 1/20 of that of Ni-MH batteries;
3. The rated voltage is high (the single working voltage is 3.7V or 3.2V), which is approximately equal to the series voltage of 3 nickel-cadmium or nickel-metal hydride rechargeable batteries, which is convenient to form a battery power pack;
4. With high power endurance, the lithium iron phosphate lithium ion battery used in electric vehicles can reach 15-30C charge and discharge capacity, which is convenient for high-intensity start-up acceleration;
Its shortcomings cannot be ignored:
1. Lithium-ion batteries need to protect the circuit to prevent the battery from being overcharged and over-discharged.
2. The production requirements are high and the cost is high. A lithium battery used in an electric wheelchair costs about two thousand yuan.
3. All lithium primary batteries have poor safety and may explode.