IBM ThinkPad 340 Series Hardware Maintenance Manual page 410

2. Remove the battery pack and measure the voltage
between battery terminals 1 (+) and 4 (−). See the
following figure.
Ni-MH Battery Pack
Terminal
1
2
3
4
5
6
7
400
IBM Mobile Systems HMM
(T)
Voltage (V dc) / Signal
+8.0 to +16.0
Send
Thermal
Ground (−)
NC
NC
NC
Storage Switch