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Gates Underwater Products • 5111 Santa Fe Street, Suite H • San Diego, CA • 92109
858.272.2501 • 800.875.1052 • Fax 858.272.1208 • Reliable@GatesHousings.com • www.GatesHousings.com
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Batteries
The EM43 uses 8 AA cells for power. The EM43 will accept a variety of AA cell battery
types (or chemistries):
• Alkaline (such as Duracell or Energizer)
• Oxy-nickel hydroxide (such as
Panasonic Oxyride)
• Lithium (such as Energizer e2)
• NiMH or NiCad rechargeable
Caution: Do not use mixed battery
types. This can cause battery leakage
and damage to the EM43.
Changing Batteries
To change the cells, release the latches on the
either side of the monitor and separate the two
halves where you’ll find the batteries readily
accessible.
Caution: Always install 8 new, fresh batteries when replacing spent ones. Using
new and spent batteries together can lead to leakage and damage.
Caution: Verify the batteries are installed in the holder in the proper direction.
Reversed cells may leak and cause damage.
When closing the EM43 housing, perform a routine inspection of the o-ring for any
foreign material or damage. Replace if necessary and clean the o-ring groove before
installing the new o-ring. Refer to the Gates “Housing Care and Maintenance Guide” for
more information.
Caution: Do not lubricate the large orange o-ring! It is a special silicone o-ring
and can be damaged by petroleum-based lubricants.
Battery life
The EM43 will operate for ~9 hours when in HD mode and ~14 hours in SD mode of
operation. Battery life will also be affected by battery type, manufacturer, age,
temperature and operating mode (SD or HD).
Low Battery Indicator
The EM43 is equipped with a red low battery LED warning light located on the right side
of the display. The low-battery LED will give you ~30-60 minutes warning to change
batteries. Note that different battery type, manufacturer, age, and temperature will
affect the amount of time left when the LED turns on.