Hi.
I'm wondering if someone can please help me with this query.
I'm a member of a CFA in Australia and we have around 10,000 member in the state. Each of us carry a pager that runs on a single AA battery. We are issued with Duracell Alkaline batteries. These last around 3 to 4 weeks, hence that's alot of land fill.
I've debated with our CFA headquarters about considering the use of rechargeable batteries (namely NiMh, 2550mAh, AA's). I'm told that only "Duracell AA, Alkaline" batteries are recommended. Why? Who knows!
I've personally been using rechargeable batteries for about a year now. They last about the same time - 3 to 4 (maybe just a couple of days less). I also seem to receive all emergency calls (when checking with other volunteers).
I know that the Alkaline AAs start at around 1.64V and the NiMh I have start around 1.44V. At about 1.25(?)V, the pager beeps every couple of hours as a warning that the battery is getting low (with either battery). At around 1.22V, the pager turns off (again with either battery). Between the warning to "off" seems to range between 4 to 7 days (depending no. of calls received).
Plotting the discharge of both batteries, I found from full to empty, the Alkaline is quite linear. The NiMh however seems to drop quite quickly to a low value, but then holds this value for a long time.
My questions are:
1. Is there "any" possibility that reception would be worse with one battery as compared to the other? (I haven't found this to be the case)
2. If the answer to the above is "no", what "facts" can I forward to my brigade in defense of the suggested change.
Any facts, web links, literature, etc, would be kindly appreciated. Thanks in advance.
I'm wondering if someone can please help me with this query.
I'm a member of a CFA in Australia and we have around 10,000 member in the state. Each of us carry a pager that runs on a single AA battery. We are issued with Duracell Alkaline batteries. These last around 3 to 4 weeks, hence that's alot of land fill.
I've debated with our CFA headquarters about considering the use of rechargeable batteries (namely NiMh, 2550mAh, AA's). I'm told that only "Duracell AA, Alkaline" batteries are recommended. Why? Who knows!
I've personally been using rechargeable batteries for about a year now. They last about the same time - 3 to 4 (maybe just a couple of days less). I also seem to receive all emergency calls (when checking with other volunteers).
I know that the Alkaline AAs start at around 1.64V and the NiMh I have start around 1.44V. At about 1.25(?)V, the pager beeps every couple of hours as a warning that the battery is getting low (with either battery). At around 1.22V, the pager turns off (again with either battery). Between the warning to "off" seems to range between 4 to 7 days (depending no. of calls received).
Plotting the discharge of both batteries, I found from full to empty, the Alkaline is quite linear. The NiMh however seems to drop quite quickly to a low value, but then holds this value for a long time.
My questions are:
1. Is there "any" possibility that reception would be worse with one battery as compared to the other? (I haven't found this to be the case)
2. If the answer to the above is "no", what "facts" can I forward to my brigade in defense of the suggested change.
Any facts, web links, literature, etc, would be kindly appreciated. Thanks in advance.