Appendix A
•Do not disassemble or modify batteries.
•Immediately discontinue use of a battery if, while using, charging, or storing the battery, the battery emits an unusual smell, feels excessively hot (note that it is normal for the battery to feel warm), changes color or shape, or appears abnormal in any other way.
•In the event batteries leak and the fluid gets into one’s eye, do not rub the eye. Rinse well with water and immediately seek medical care. If left untreated, the battery fluid could cause damage to the eye.
CAUTION: Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the instructions.
Power indicators
When the batteries are low or the camera is in a dock connected to AC power, one of the following icons appears in the Image Display. If no battery icon appears in the Image Display, the batteries have sufficient power to function normally.
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| Battery level is low. Camera will soon power down. |
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| Battery is depleted. Camera will power down. |
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| Blinking |
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| Camera is operating on AC power. |
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NOTE: If the camera is without batteries for a prolonged period, the clock may be reset and you may be prompted to update it the next time you power on the camera.
Number of shots per battery type
The following table shows the low, high, and average number of shots that may be obtained using Alkaline, Photo Lithium, and rechargeable NiMH batteries, based on standard HP testing. Actual performance may vary based on usage, battery type, and battery manufacturer.
Number of Shots (M437/M537)
Battery Type | Low | High | Average | CIPA |
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Alkaline | 160/80 | 320/250 | 240/183 | 180/80 |
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NiMH | 260/220 | 420/380 | 380/300 | 280/230 |
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Photo Lithium | 420/388 | 750/600 | 540/500 | 480/400 |
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For Low, High, and Average numbers, four pictures are taken per session with at least a 5 minute break between sessions. In addition:
•The Low value is obtained with extensive use of 
Picture Capture (30 seconds per picture), 
Playback (15 seconds per picture), and 
Flash On. Optical zoom (both directions) is used on 75% of the shots.
•The High value is obtained with minimal use of 
Picture Capture (10 seconds per picture) and 
Playback (4 seconds per picture). Flash and optical zoom (both directions) are used on 25% of the shots.
40 Managing batteries