Battery with central gas venting

Function

New generation batteries are equipped with a central gas venting system and integrated flame trap. Function: Gases produced during charging escape through a central opening on the side of the upper cover. The integrated flame trap prevents flammable gases in the battery from igniting. The flame trap is comprised of a small round fiberglass mat with a diameter of 15 mm and a thickness of 2 mm. Working as a one-way-valve, it allows gases produced during charging to vent.

There are two different types of batteries with central gas venting:

Batteries WITH external vent connection and hose for central gas venting.
Batteries WITHOUT vent connection and hose for central gas venting.

WARNING:

Only install batteries of the latest type with central gas venting.
Where equipped, ensure vent hose and hose connection are always secured to the battery housing during servicing.
Vent hose must not be kinked or pinched.
Always use genuine battery cell caps. Plugs must be installed with an O-ring seal.