Lucent Technologies Round Cell Batteries
4 - 8 Safety Issue 3 December 1999
Vent Funnel
and Orange
Shipping Plug
These guidelines cover the proper use of the orange shipping plug and
vent funnel.
• The orange shipping plug is used for transportation. It is provided
with a small opening to allow some hydrogen gas to escape and to
minimize the spill of electrolyte. The opening is sized to allow the
minor amounts of hydrogen to escape that can exist under open
circuit. It WILL NOT provide sufficient ventilation or dispersing
of gas from the battery under ANY charging conditions.
– DO NOT charge battery with orange shipping plug in place.
– DO NOT remove vent funnel and replace with the orange
shipping plug UNLESS the battery has been on float charge at a
voltage less than 2.20 volts/cell for at least 48 hours, and let sit at
open circuit for an additional 24 hours.
• The vent funnel must be in place before applying ANY charge. Once
the battery is in place, remove the orange shipping plug and insert the
vent funnel. The vent funnel is designed to ventilate the hydrogen gas
from the battery by dispersing the gas through many pores around the
vent. Dispersing the gas helps reduce the risk of explosion. However,
applying a charge greater than the float voltage creates additional gas
around the vent funnel that increases the risk of explosion.
– Seat vent funnel properly.
– ALWAYS let the battery sit for at least 48 hours at a voltage less
than the float voltage of 2.20 volts/cell before doing any work
around the battery. It is important that the voltage is verified to be
less than the recommended float voltage.
– DO NOT handle or work around batteries while charging at
greater than the recommended float voltage.
DANGER
RISK OF EXPLOSION
The vent funnel and orange shipping plug must be used properly
to reduce the risk of explosion. Improper use could increase the
risk of explosion due to concentrations of hydrogen gas around
the vents, or excessive internal pressure.
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