Psion Teklogix Netbook Pro User Manual

8.1.5  Battery Life Of The NETBOOK PRO

Many variables affect NETBOOK PRO power consumption and battery life. The 
2200 mAh 12.6 V Lithium-Ion battery pack provides 8 to 11 hours of operation, 
dependent on backlight level and no use of peripheral cards or attachments. Unlike 
batteries using other chemistries, Lithium Ion batteries do not suddenly fail unless 
they have been abused in some way. The battery capacity gradually reduces over the 
lifetime of the battery. Typically, the capacity of a NETBOOK PRO battery pack 
will decline by approximately 15-20% of initial capacity over 400 charge/discharge 
cycles. The battery capacity also declines slowly with aging, i.e. in storage. 

Conventionally, the NETBOOK PRO battery pack is considered to have reached 
'end-of-life' when its capacity has declined to 50% of the pack’s initial capacity. 
Therefore, a NETBOOK PRO battery pack will typically reach its ‘end of life’ after 
approximately 1000 charging/discharge cycles (although the battery will still work 
for some time after this point).

8.1.5.1

Charging Times

The standard NETBOOK PRO battery charging solution does not use trickle charg-
ing or fast charging. The NETBOOK PRO battery pack is charged at a constant rate. 
The actual charge time experienced is dependant on capacity of the battery pack and 
the ambient temperature. The approximate charging time is 3 to 4 hours.

8.2  ActiveSync Connection Problems 

Using Windows® 95/98/NT 4.0

This section is a guide to troubleshooting connection problems between a 
NETBOOK PRO and a PC running Windows

®

 95/98/NT 4.0 and ActiveSync. It 

also presumes you have already gone through the online help documents that come 
with ActiveSync, and still have no success in linking. A basic knowledge of using 
the NETBOOK PRO and Windows 95/98/NT 4.0 is necessary. For information 
about using Windows 95/98/NT 4.0, check your Windows manual or contact the 
Windows helpline.