Longer Operation With External Battery

Model SR Serial Recorder may be powered by a wallmount AC Adapter (included)
or a common 9 Volt Battery. The internal 9 Volt Battery will provide 7 - 14 hours operation.

For increased operating time choose Battery Power Cable option:
Clip onto a common lantern type battery.

Battery:

Estimating Model SR Battery Life:


6 Volt Lantern Type 908

Battery Rating: 20,000 mah capacity
Model SR Usage: 10 ma
Battery Life: 20,000/10ma = 2,000 hours
Degrade by 30% = 2,000 - 30% = 1,400 hrs

Life: 1,400 hrs/24 hrs = 58 days

 


6 Volt Lantern Type 918

Battery Rating: 40,000 mah capacity
Model SR Usage: 10 ma
Battery Life: 40,000/10ma = 4,000 hours
Degrade by 30% = 4,000 - 30% = 2,800 hrs

Life: 2,800 hrs/24 hrs = 116 days

• Model SR256 consumes 5 - 10 ma in RECORD MODE
• Minimum input voltage: 4.5 Volts
• Maximum input volatge: 15 volts
• When clipping the power cable onto the battery, accidental reversal of polarity will not damage Model SR.

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