Fenix SD20 FAQs

Everything you need to know about your Fenix SD20 LED flashlight

Can the Fenix SD11 and SD20 dive lights be used out of the water without them overheating or being damaged?

Yes, the SD diving lights can be used in our out of water and will give you the same operation and functionality.

Can the Fenix SD20 dive light be made to work in R+ mode like in the Fenix SD11?

Unfortunately there is not a way to have the SD20 work in the R+ mode that the SD11 has. That is just how the SD20 was designed and engineered. Browse our diving lights.

What batteries work in the Fenix SD20 flashlight?

The Fenix SD20 flashlight is compatible with two 18650 li-ion batteries or four non-rechargeable CR123 lithium batteries.

What is the working voltage of the SD20?

The working voltage of the SD20 is between 6-12 volts.

What's the difference between the Fenix SD11 and SD20 dive lights?

There are a couple differences between the two lights. The first being is that the SD20 is longer than the SD11. So much so that the SD20 requires two 18650 batteries to operate and the SD11 only requires one. Another difference is that when the SD11

Which battery chargers will work with the Fenix SD20 batteries?

You can use the chargers listed below to charge 18650 lithium ion batteries: ARE-X1, ARE-X2, ARE-A4, ARE-A2, ARE-D1, ARE-D2, ARE-X11.