What kind of batteries are used in TL coachees. Briefly explain about each one of them?
Ans. In TL coaches two kind of batteries are used. They are SMF and VRLA batteries.
VRLA batteries: These are the Valve Regulated Cells which operates on Oxygen Recombination Principle.
SMF batteries: To overcome problems of frequent topping up and leakage of electrolyte sealed maintenance free batteries are prepared.
Electrolyte in SMF batteries is in immobilized form and these will be used in any position.