Lucent Technologies KS-20472 - Final Connection of Cell Groups

Lucent Technologies Round Cell Batteries
Issue 3 December 1999 Installation 6 - 23
Final Connection of Cell Groups
Procedure
DANGER!
RISK OF EXPLOSION
• Battery gases are explosive. Do not allow sparks or open flame
near batteries.
• Do not smoke around batteries.
• Never charge batteries without vent funnel in place.
• Do not handle, move, or work around batteries during or for 48
hours after charging at a voltage greater than 2.20V/cell.
• Handle, move, or store charged cells only with vent funnel (NOT
orange shipping plug) in place.
• If the orange shipping plug must be reinstalled for transportation,
let the battery sit for an additional 24 hours at open circuit after the
48-hour float charge (less than 2.20 volts/cell) before removing the
vent funnel and replacing it with the orange shipping plug.
• Do not allow gas vents to become clogged or an explosion due to
internal pressure may result.
• Properly ventilate battery area.
• Do not place batteries in a sealed enclosure/room.
Final Connection of Cell Groups
Step Action
1
If cells were divided into smaller groupings for initial charge,
adjust charge voltage to 2.17-2.20V/cell and hold for a
minimum of 48 hours.
2
Immediately prior to termination of float charge, record total
string voltage and individual cell voltages. If any individual
cell voltage exceeds 2.30V, reset proper float voltage and hold
an additional 48 hours.
3
Disconnect cell groupings and reconnect into final
configuration. Place on continuous float charge at 2.17-2.20V/
cell within 72 hours of open circuit.