Replacing lead acid traction batteries
Lead acid batteries are popular in light commercial vehicles such as golf cars, surface boats, material handling vehicles such as forklifts, airport ground support equipment, e-bikes and mobility vehicles for the disabled. Two alternatives, ie lithion-ion and supercapacitors – will imminently replace lead acid traction batteries.
Reasons for the need to replace lead acid traction batteries include:
- Handling of acid
- Short life
- Lead pollutant
- Poor energy and power density
- Three sets needed for a forklift (one in use; one charging; one cooling down)
- Large size - takes up space
- Both lithium-ion and supercapacitors are almost ready to replace traditional lead-acid batteries in some traction applications.
- Many of these evolving solutions will find themselves of value in a variety of industrial applications.
- Current advances in supercapacitor technology have been remarkable.
Published as: Two devices will replace lead acid traction batteries
By P Harrop, IDTechEx
Electricity+Control, August 2011 (pgs 32 -33)