When a Gel Cell battery is charged, no hazardous fumes escape the battery case, gases are processed within the battery itself.
The Performance and Characteristics of the YT12B-4 GEL Battery includes maintenance Free / GEL configuration, No leaks, spills or contact with acid, no acid mist and pollution to the environment when charging and discharging, High capacity: 10-20% higher comparing to that of VRLA, low self-discharging and durable for storage, nice ability for resilience after over-discharge and the capacity of high discharge current increases by 30% over VRLA, amazing performances in all temperature conditions. Y50-N18L-A3 GEL Battery for Arctic Cat T660 Turbo Touring 2006 Listing is for the Battery and Screws only.