Psion Teklogix ISO 9001 - Manual (Page 323)

WORKABOUT PRO Hand-Held Computer With Windows Mobile 6 Classic & Professional User Manual 305
Chapter 8: Specifications
High-Capacity (Model WA3006)
Battery Pack Electrical Specifications
8.3.1.2 Standard Discharge
Note: Standard charge is defined as charging with constant voltage limit of 4.2V
and constant current limit of 0.9A; the termination charge occurs when
the current drops to 45mA.
Standard discharge is defined as discharging at a constant current of
350mA until the battery protection circuit switches the battery output off in
over-discharge mode.
Acceptance Test Specifications
Description Specification
Minimum Typical Maximum
Over voltage detection voltage 4.325V 4.350V 4.375V
Charge enable 4.10V 4.15V 4.20V
Under voltage detection voltage 2.5V 2.6V 2.7V
Over current detection current - 3.5A -
Short-circuit detection current 5.0A 8.0A 11.0A
Short-circuit detection voltage 150mV 200mV 250mV
Over voltage delay time 0.8s 1s 1.2s
Under voltage delay time 90ms 100ms 110ms
Over current delay time 5ms 10ms 20ms
Short-circuit delay time 160µs 200µs 240µs
Recovery charge current 0.5mA 1mA 2mA
Description Condition Standard
Open circuit voltage After standard charge, measure within 24 hours. 4.15V or more
Internal Resistance After standard charge, measure within 24 hours. 200 m max.
Capacity_1
After standard charge, measure time taken for a fast
discharge.
110 minutes or more
Charge/Discharge
Cycle
After repeating standard charge and fast discharge,
measure the fast discharge time after 300 discharge
cycles.
90 minutes or more
Capacity_2
After standard charge, measure the time taken for a
standard discharge.
500 minutes or more