Yes, of course it is as I have a long and sordid history for lying about stuff like that on this forum :
However, I did neglect to explain that the majority of these batteries were used in the Clansman radio system (which is why the RSO had to sign for them) and, being the arctic, they ran down faster than in a temperate environment. Duracell must have made a fortune off of us.
Here's a link that decribes the PRC 349 (section radio) version and it's power source. We also used the 350(Pl level) and 320 (HF) radios:
Clansman PRC-349 ( BCC-349 )
This is the standard Hand-held radio of the British army, part of the "Clansman" series of radio equipment. Intended for platoon level personal communications under combat conditions, it may be carried on the shoulder, on the back, on the breast with its adjustable quick-release holster or in a belt worn holster. Features include frequency operation between 37 to 46.956 MHz with channels spaced 25 Khz apart. Protection from open or shorted antenna circuit and receiver overload. A battery save function that is in automatic operation during no-signal conditions.
Can be used with clansman 349 rechargeable batteries and charging unit or “Hollow cell” which lets you use civilian AA batteries.
http://www.emlra.org/C&S%20Barrow%20index/clansman_349.htm