More on Electric Wheelchair

The electric wheelchair may be powered by different types of batteries such as wet batteries, gel batteries and AGM batteries. Wet batteries work through chemical reaction between lead and sulphuric acid and, need filling up with distilled water and, are also quite light but, can leak. They are cheaper, less vulnerable to overcharging and give good service, if maintained properly.

Gel batteries have sulphuric acid, fumed silica, pure water as well as phosphoric acid to form a thixotropic gel. Not containing liquid means that there is no risk of leakages and they are also not in need of maintenance as is the case with wet batteries. AGM batteries contain absorbed glass mat sandwiched between plates and have saturated acid electrolytes and, because of sandwiching, there is uniform distribution over the plates thus lessening the risk of battery damage. They are costlier and susceptible to overcharging and, are a product of new technology.