Looking for models with 519a LED, that are LiIon capable. They are from before Nov 2023
model names include
SC53c N
SC53Fc N
H53c N
H53Fc N
If you have one, and are unsure if it is LiIon friendly, this is how to tell. This does not damage the light.
- Insert a Button Top 14500 and check if the light still has 6 modes. If it does it is LiIon friendly. The outputs will all be the same as on AA, except for H1, whic will be twice as bright.
- If the light is not LiIon friendly there will only be two modes, 8 lumen and 20 lumen. The LiIon will not damage the light, but to go back to AA use, we must use this process:
- With the light empty (no battery inside), hold down the switch for 2 seconds. This resets the internal battery meter so the light does not mistakenly think the AA is a drained LiIon. After that, insert the AA battery and the light will work normally. This can be confirmed by doing battery check, the light will give 4 flashes on a full AA. (if the button is not held down on an empty light, the battery check will only give 1 flash, and the light will step down, and turn off when trying to use a high output)
