Received this 2023 H53Fc N and spent some quality time changing programming
These are the outputs I set up:
my G6 program:
1C 13 or 148
2C 6 or 87
1H 0.1 or 2
This is what those outputs look like on Opple 3 Flicker Index tests for both Eneloop and LiIon: (notice all the nice straight lines on the Lux data for Eneloop)
This next chart shows the M1 output does not produce constant Lux on any battery type:
What Li -Ion?
These two 50mm long Button Tops work in the Zebra. They are the same length and button as AA:
I do not use Vapcel Button Tops, they are longer than AA. Flat Tops dont work in the Zebra.
This flashlight operating voltage range: 0.7V - 2.0V
Officially, that is correct.
Unofficially, the 53 model, but not the 54, had a LiIon capable variant, before October 2023. Even though Zebralight did not advertise that feature, other Zebra users found that LiIon actually does work in the 2023 model 53 (not in the 2024 model 53)
This is how to go back to AA after using LiIon:
After using LiIon in a 2023 LiIon capable 53 model, remove the battery, and press the switch for a couple of seconds. After that an AA battery works again…
IF that procedure is not followed, and after using LiIon we insert an AA, the Zebra will act like the LVP has been triggered, the light will step down, get dim, and shut off. Voltage check would give only 1 blink, as if the battery was empty (because 1.5V looks like an overdischarged LiIon).
By holding the button down on an empty light, after using LiIon, the Zebra will reset its Voltage range, and will recognize the Voltage of an AA battery as acceptable. Voltage check will give 4 blinks, as it normally should on a full AA.
IF we put a LiIon in a 2024 53 model, the light will only have two modes, but it will not be destroyed. So if you have an older 53 model, and are wondering if it works with LiIon, there is no danger to try it.
