Now that I've had the UC35 for over a month, I can report that it is the flashlight I use the most.
Regarding charging...
mcfarlie6996: Question, does this recharge any 18650 or does this require a specialty battery like the UC40?
fenix1: UC35 can be used to charge the common 18650 rechargeable Li-ion battery from 65mm to 71mm in length.
I bought a second 18650 (Efest 3100 mAh) so I could have a spare for extended use, and the UC35 charges it up just fine. The Fenix battery is labeled 3.6 volts and the Efest battery is labeled 3.7 volts. Measured voltage, using a Fluke 16 in Vcheck mode (2k ohm load) was 4.06 for the Efest and 4.09 for the Fenix. Only three hundredths of a volt difference; a rounding error.
After buying the UC35, I then purchased a PD22UE (for God's sake somebody stop me!
) and a Watson 3.7 volt CR123A. Since the CR123A and the 18650 were the same voltage (3.7), I used the UC35 to charge the CR123A by adding a dummy cell in series. It worked flawlessly. This works well for me since I don't have a stand alone LiIon charger.
I really like the PD22UE too!
Happy Holidays!
P.S. An aside...
I was wondering about the accuracy of my Fluke 16 and the best I can do is to compare it to another meter and evaluate the difference. As stated above "Measured voltage... ...was 4.06 for the Efest and 4.09 for the Fenix" using the Fluke 16. I also measured the voltages with my Fluke 189, the results: Fenix 4.0832 volts and the Efest was 4.0510. Pretty close. The 189 should have had slightly higher voltage readings since it's a high impedance meter (10 Mohms vs. 2 kohms for the 16 in Vcheck) and since it was calibrated some years back I'm suspecting the 16 is reading slightly high, but not by much. Of course all the voltage info is pretty pointless, but I find it interesting none the less.