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SL-75
3–5NM+ Solar Marine Lantern
Maintenance and Servicing
Designed to be maintenance free, the SL-75 requires minimal attention, though the following
maintenance and servicing information is provided to help ensure the life of your Sealite product.
1. Cleaning Solar Panels - occasional cleaning of the solar panels may be required. Using a cloth and
warm soapy water, wipe off any foreign matter before rinsing the panels with fresh water.
2. Battery Check - inspection of batteries should be performed every three years (minimum) to ensure
that the charger, battery and ancillary electronics are functioning correctly. Using a voltage meter,
check that the battery voltage is at least 3.6 volts under 100MA load, and ensure all terminals are
clear of foreign matter.
Replacing the battery- Don’t throw the unit out!!
The SL-75 lanterns are the only compact marine lantern with a double sealed battery compartment. This
provides the user with the ability to change the battery after years of operation.
1. Remove the marked
fl
ash adjustment bung from the base of the lantern and set internal toggle
switch to ‘OFF’.
2. Unscrew small screws to remove battery plate.
3. Remove battery from SL-75 case and unscrew positive and negative leads.
4. Discard old battery in a safe manner.
5. Reattach positive and negative leads to new battery and then place back into case.
6. Reattach battery plate and switch lantern ‘ON’ via internal switch. Close the bung.
7. To test place dark cover (towel or jacket) on top of lantern to activate sensor, lantern will come on.
Care must be taken to observe the polarity of the battery before the leads are re-connected, and
ensure the replacement battery is correctly
fi
tted. Always discard old batteries in a safe manner.
Long Term Storage Instructions
If the SL-75 is to be placed in storage for an extended period, being more than 5 months, please follow
the below steps.
1. The 3.6V NiMH Battery must be stored in a fully charged condition.
2. Remove the Flash Adjustment plug and turn the ON/OFF switch to the OFF position.
3. Remove the battery cover and disconnect the Positive (+) Terminal.
4. Fold the Terminal away from the Negative Battery Terminal.
5. Replace the Battery Cover
6. Replace the Flash Adjustment Plug.
All batteries will discharge over time and the rate of discharge is dependent on temperature. If the
lantern is being stored in temperatures greater than 40°C the battery will discharge faster.
Please check battery every 3-6 months and recharge if necessary.
Recharging the Battery
1. Remove the Battery Cover and connect the Positive Terminal.
2. Remove the Flash Adjustment Plug and turn the ON/OFF switch to the ON position.
3. Reconnect the Light Head and place unit in the sun for 2-4 days
Or
Reconnect Light Head and place in front of a halogen lamp for 2-3 days. (Do not place the halogen light
too close to the solar panel or the panel may be overheated)
Check the battery voltage regularly to make sure the unit is charging correctly.
After the battery has been recharged, switch the lantern OFF.
