Storing the Main Battery
Product Reference Guide
A-7
2. Connect the PSC serial cable to the serial interface connector at the bot-
tom of the PT40. (It is not necessary to have the other end of the cable
connected to a PC when recharging.)
3. Attach the small, round plug of the 9-volt power adapter to the round
power input jack on the 9-pin connector of the serial cable as shown in
.
4. Plug the power adapter into a wall outlet or a power strip.
5. While the PT40 is being charged, the LED on the front of the PT40 will
be red. When the PT40 is done charging, the LED will change to green.
Storing the Main Battery
The typical life-span of a Lithium-ion battery is 2-3 years from the date of
manufacture whether or not it is used. When a Lithium-ion battery is used,
the typical life span is approximately 300-500 discharge/charge cycles.
Store the main battery between -4° and 122°F (-20° to 50°C). Cool storage
and maintaining the battery in a partially charged state when it is not in use
retard the aging process.
Backup Battery
The PT40 contains a lithium battery as a backup to save application program
codes, collected data and system information, including the clock setting.
Under most circumstances, a fully charged backup battery will keep informa-
tion for 7-10 days if the main battery is completely discharged or removed.
This should provide sufficient time to recharge the main battery without risk
of losing data. The backup battery is recharged whenever a charged main bat-
tery is installed as well as when the power supply is connected.
Low Battery Indication
Main Battery
The PT40 indicates when the main battery is low by flashing
LOW BATTERY
on the display. About 2 hours of use remain before the main battery reaches its
automatic low-power shutdown point.
2340.book Page 7 Wednesday, January 29, 2003 12:50 PM
