Sony DSC-P200 Fall 2005 User's Manual / Troubleshooting page 94

NP-FR1 battery pack
Battery used
Maximum voltage
Nominal voltage DC 3.6 V
Capacity
Design and specifications are subject to change
without notice.
94
Lithium-ion battery
DC 4.2 V
4.4 Wh (1 220 mAh)