Preventing Quality Problems
(2) Reduction of battery voltage and deterioration of capacity through contact between batteries
Incidents have been reported where terminal-mounted batteries for memory backup or coin-type lithium batteries have
come into contact each other, thus forming discharge circuits (shorted state) and leading to voltage drops or capacity
deterioration. Observe the following precautions.
1. Remove the batteries from the tray one at a time.
If the tray is turned upside down, the batteries will come into contact with each other, forming discharge circuits.
2. Do not place batteries randomly in a parts box or other container.
Discharge circuits will be formed by multiple batteries coming into contact, causing the batteries to discharge and
drain.
Recommended procedures
*Utilize the tray lid in taking out batteries
Prohibited procedures
*Do not throw batteries randomly into a parts box
by turning over trays containing batteries.
Intermediate package
(200 batteries):
20 pieces ? 10 trays
Tray containing batteries
Trays containing batteries
Lid tray (tray with no hole)
Batteries
Parts box
Discharge circuits
Trays containing batteries
Batteries being exhausted
Lid tray
protruding part
Battery being exhausted
Battery being exhausted
*Contact of batteries with each other forms discharge
circuits, thus the batteries are drained.
*Lay a tray lid flat and place a tray containing batteries on
top of it: batteries are pushed up by protrusions of the lid
tray so that they can be easily picked up with fingers.
LITHIUM HANDBOOK
AUGUST 2005
This information is generally descriptive only and is not intended to make or imply any representation, guarantee or warranty with respect to any cells and batteries. Cell and battery designs/specifications
are subject to modification without notice. Contact Panasonic for the latest information.
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