E

Batteries

The PT2000 and Top Gun run on two types of batteries. The main batteries supply operating
power for the PT2000 unit and for the Top Gun module or another input device. The
internal lithium battery provides backup power to maintain the random-access memory and
real-time clock when the main batteries are removed.
The portable can use two different types of main batteries: individual alkaline cells or a
rechargeable nickel-cadmium (NiCd) battery pack.
APPENDIX CONTENTS
Alkaline Batteries ........................................ ......134
NiCd Battery Pack....... ......................................135
Recharging the NiCd Battery Pack.......................137
Storing the NiCd Battery Pack.............................138
Lithium B ackup Battery .....................................138
Low Battery Indication.......................................139
NiCd Battery Pack or Alkaline Batteries...............139
Backup Battery....................................................139