Chapter 9: Specifications
Battery Specifications
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Psion Teklogix WORKABOUT PRO Hand-Held Computer User Manual
9.4 Battery Specifications
9.4.1 Standard Battery Pack
User Environment
Ambient Light, Artificial:
450 ft. candles (4,844 lux)
Ambient Light, Sunlight:
10,000 ft. candles (107,640 lux)
Operating Temperature:
-22˚ F to 140˚ F (-30˚ C to 60˚ C)
Storage Temperature:
-40˚ F to 140˚ F (-40˚ C to 60˚ C)
Humidity:
5% to 95% noncondensing
Power, Input Voltage:
5.0 VDC ± 10%
Power, Input Current:
110 mA typical
Power, Standby Current:
130 µA max.
Shock:
2,000 G
Regulatory
Laser Classification:
Intended for use in CDRH Class II and IEC Class 2
devices
Electrical Safety:
UL, VDE, and CUL recognized component laser
Chemistry Capacity
Lithium Ion Polymer Battery (Li-Polymer)
1750 mAh nominal at 350mA discharge 20 °C (68˚ F) to
2.8V(minimum)
Voltage
3.7V nominal (2.8V min. to 4.2V max.)
Cell Configuration
1S2P (2 parallel connected cells)
Cell Type
Lithium-ion Polymer Battery
Max. Discharge Current
1A (-10˚ C to 60˚ C) -- (14˚ F to 140˚ F)
Charge Algorithm
CC to CV
Max. Charge Voltage
4.2V +/- 0.05V
Max. Charge Current
800 mA
Discharge Cut-off
2.6V min – DS2761 protection circuit initiates
Recommended
Fast Charge
1550 mA for 2.5hrs
Max. Fast Charge Time
3.0 hrs.
Recommended Termination
Taper Current
50 - 100 mA
Recommended Charge
Termination Timeout
30 min.
