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Lead-acid batteries in electric wheelchairs typically need to be fully charged to 100%. However, lithium batteries do not need to be fully charged to 100% every time, as maintaining a fully charged state for a long time will cause slight wear and tear on the cells, shortening their lifespan.

For patients with severe muscle weakness or upper limb dysfunction, using traditional manual wheelchairs will lead to the dilemma of "being able to sit but unable to move" due to the lack of propulsion. Electric wheelchairs can easily replace manpower to complete various directions of travel through the electric drive system.

The core power system of electric wheel chairs is the battery they are equipped with. Most modern electric wheel chairs use lithium-ion batteries. This type of battery has the advantages of high energy density and small size, but it also has the following safety hazards: • Thermal runaway • Electrolyte leakage • Aviation regulations restrictions

Lightweight electric wheel chairs are usually lightweight and suitable for carrying when going out or putting in the trunk of a car. Its battery capacity is usually small, so it is suitable for short-distance use and is suitable for elderly people living in urban environments, especially those who need to go out frequently.

The motor power of the power wheels chair directly determines its power output. At present, most of the power wheels chairs used by the elderly on the market are equipped with motors between 200 watts and 400 watts. The design maximum speed of such motors is usually between 6 km/h and 8 km/h.

1. People who are suitable for manual wheelchairs ·People with sound upper limb strength; ·People with temporary mobility difficulties (such as postoperative rehabilitation); ·People who can be pushed by caregivers for a long time; ·People who need wheelchair assistance in the short term; ·People who have high requirements for portability. 2. People who are suitable for electric wheelchairs ·People with insufficient upper limbs or overall physical strength; ·People who need to travel independently for a long time and long distances; ·People whose living environment has ample space for passage; ·People who have high requirements for life autonomy; ·People who lack fixed care resources.

1. The power wheel chair cannot be used as a means of transportation or a shelf 2. The power wheel chair cannot be driven in water or operated in high humidity 3. The power wheel chair cannot be used as a recliner or work chair for a long time 4. The power wheel chair cannot climb high slopes or cross obstacles 5. The power wheel chair cannot be mixed with non-original parts or modified privately 6. The power wheel chair cannot be used for a long time or over-discharged without being fully charged

The current prices of power wheel chairs on the market are mainly distributed in the following ranges: 1. Entry-level electric wheel chairs (US$500-1500) 2. Mid-range electric wheel chairs (US$1500-4000) 3. High-end electric wheel chairs (US$4000-10000)

If the electric wheel chair cannot be charged after not being used for a long time, it is very likely that the battery has entered a deep discharge state and can no longer be awakened.

Power wheels chairs can serve users who have completely lost the ability to walk, including lower limb paralysis, stroke sequelae, amputees, etc. The mobility scooter requires users to have good sitting stability, upper limb operation force and a certain balance ability, which is not suitable for people with severe disabilities.