I’ve got the A4 V2. I much preferred the first version with 2x18650s.
The V2 is a nice compact light, BUT the switch in nearly impossible to find in the dark by feel alone.
You end up trying to push on the charging port cover which is what you feel when fondling the light.
If ever a light cried out for a lighted switch it is this one.
It also doubles as a branding iron. My sample gets rocket hot. And I mean hurt you hot in turbo and on high.
Mine stayed in high longer than the specs called for and the total run time was shorter accordingly.
If you are looking for a pocket thrower, there are better choices.
I did a review here:
For a pocket thrower, that’s a little bigger in the head, I like the Sofirn C8G (1x21700). Or even a C8 with one of the newer small die LEDs.
But as long as you can live with the tiny switch and the heat limitations, it’s a throwing fool in a little package.
The Sofirn fits your budget but has external charging:
https://www.amazon.com/Tactical-Flashlight-Searching-Emergency-Included/dp/B07QGDX13B
All the Best,
Jeff