Suunto HELO2 manual Battery Replacement, Battery kit, Required tools, Replacing the battery

9. BATTERY REPLACEMENT

NOTE	It is advisable to contact an authorized Suunto representative for
	battery replacement. It is imperative that the change is made in a
	proper manner to avoid any leakage of water into the battery compart-
	ment or computer.
CAUTION	Defects caused by improper battery installation are not covered by
	the warranty.
CAUTION	When the battery is changed, all nitrogen and oxygen uptake data is
	lost. Therefore, the no-fly time shown by the computer should have
	reached zero or you must wait for 48 hours, or preferably up to 100
	hours, before you dive again.

All history and profile data, as well as the altitude, personal, and alarm settings, will remain in the dive computer memory after the battery change. However, the clock time and time alarm settings are lost. In the MIXED GAS mode, the gas mix settings also revert back to default settings (MIX1 21% O2, 0% He, 1.4 bar PO2).

9.1. Battery kit

The battery kit includes a 3.0 V coin type lithium cell battery and a lubricated O ring. When handling the battery do not make contact with both of the poles at the same time. Do not touch the surfaces of the battery with your bare fingers.

9.2. Required tools

•A flat 1.5 mm screwdriver or a special tool for spring bars (K5857).

•Soft cloth for cleaning.

•Needlenose pliers or small screwdriver for turning securing ring.

9.3. Replacing the battery

The battery and the buzzer are located in the back of the instrument in a separate com- partment. To change the battery:

1.Thoroughly rinse and dry the computer.

2.Open the securing ring of the battery compartment lid by pushing it down and rotating it clockwise. You may use a pointed nose pliers or a small screwdriver as an aid in the rotating. Put the pliers ends into the holes of the securing ring or the screwdriver onto the side of the right tooth on the ring and turn the ring clockwise. Be careful not to damage any of the parts.

3.Remove the ring.

4.Carefully remove the lid with the beeper attached to it. You can remove the lid by pressing with your finger on the outermost edge of the lid while simultaneously pulling with your nail at the opposite side. Don't use sharp metal objects as they might damage the O-ring or the sealing surfaces.

5.Remove the O-ring and the battery retainer.

6.Carefully remove the battery. Do not damage the electrical contacts or the sealing surface.

7.Check for any traces of flooding, particularly between the beeper and the lid, or for any other damage. In case of a leak or any other damage, bring the dive computer to an authorized SUUNTO dealer or distributor for check and repair.

8.Check the condition of the O-ring; a defective O-ring may indicate sealing or other problems. Dispose the old O-ring, even if it seems to be in good condition.

9.Check that the battery compartment, battery holder and lid are clean. Clean with soft cloth if necessary.

10.Reinstall the battery retainer in its correct position.

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