LabPro battery life depends on the number and type of sensor being used as well as how frequently data are being collected. Below you will find a chart that summarizes battery life under a variety of conditions.
| Sensor Used | Low-cost 6V Batteries Duracell MN908 Eveready Classic 509 Eveready Energizer 1209 |
Higher-quality 6V Batteries Duracell MN918 Eveready Energizer 528 Eveready Energizer 529 |
|---|---|---|
| CO2 DO EKG FLO PH |
The expected life is 72 hours with the exception of CO2 (will last about 54 hours). Since the power is always on, the data rate does not matter. |
The expected life is 160 hours with the exception of CO2 (will last about 120 hours). Since the power is always on, the data rate does not matter. |
| All other sensors | 1 sample/minute = 90 days 4 samples/hour = 162 days 1 sample/hour = 180 days |
1 sample/minute = 200 days 4 samples/hour = 360 days 1 sample/hour = 400 days |
| Note: You could also make a battery pack out of four D cells. The battery life (using rechargeable) will be close to a low-cost 6V lantern battery. | ||
| Note: When collecting data over many days, the battery life will be greatly effected by temperature. Very cold or hot temperatures could easily reduce lifetimes by half. | ||
| Sensors Used | Four AA Batteries |
|---|---|
| CO2 DO EKG FLO PH |
The expected life is 8 hours with the exception of CO2 (lifespan is about 6 hours). Since the power is always on, the data rate does not matter. |
| All other sensors | 1 sample/minute = 10 days 4 samples/hour = 18 days 1 sample/hour = 20 days |
| Note: In most cases, battery life values have been calculated and do not come from real-world testing. However, they are on the conservative side. They assume you are using DataMate and are running in minimum power mode (not graphing or actively monitoring the input). Results will vary depending on temperature and type of batteries used. | |