|
Cost Effectiveness
The impact of the discharge rate and duty cycle on the cost of
battery operation is shown in the table below which compares the
service life and cost-per-hour of service of regular zinc-carbon
cylindrical cells with alkaline manganese dioxide cells under various
loads. The relative cost-per-service-hour column shows the cost
savings resulting from the use of Alkaline Manganese Dioxide batteries
versus zinc-carbon batteries in each application.
| BATTERY
TYPE |
TEST* |
ACTUAL
SERVICE HOURS |
RELATIVE
COST PER SERVICE HOUR |
| ZINC-CARBON |
| ALKALINE
ZINC-CARBON |
ALKALINE |
| D |
Flashlight: 2.2
ohms |
3.7 |
20.5 |
1 |
.56 |
| C |
Toy: 3.9 ohms |
2.2 |
20.8 |
1 |
.33 |
| AA |
Flashlight: 3.9
ohms |
1.1 |
6.2 |
1 |
.41 |
| AA |
Tape Player: 10
ohms |
3.5 |
17.4 |
1 |
.47 |
| |
Relative Cost
Ratios |
.35 |
1.0 |
|
|
* Test conditions:
- D - Flashlight - 2.2 ohms, 4 minutes/hour to 0.9 volts.
- C - Toy - 3.9 ohms, 1 hour/day to 0.8 volts.
- AA - Flashlight - 3.9 ohms, 4 minutes/hour to 0.9 volts.
- AA - Tape Player - 10 ohms, 1 hour/day to 0.9 volts.
|
