Lead-Acid Batteries (Related to Batteries)
The VRLA (Valve Regulated Lead Acid) also know as MF (Maintenance Free) battery is one of many types of lead-acid battery.
It became popular on motorcycles because its acid is absorbed into the medium which separates the plates, so it cannot spill, and this medium also lends support to the plates which helps them better to withstand vibration.
The electrical characteristics of MF batteries differ somewhat from wet-cell lead-acid batteries, and caution should be exercised in charging and discharging them. MF batteries should not be confused with AGM (Absorbed Glass Mat) batteries, which also have an absorbed electrolyte but again have different electrical characteristics.
