AA tactical headlamp and tactical weapon light?

[Moab]

I just heard back from Fenix and these are rifle lights! I think the new ones are only $65. And run 82hrs on low. Which is pretty long for a weapon light. And makes these usable as a handheld and weapon light. Which is what i was looking for originally. Heres the current model. But look at them on their site. Theres one a bit nicer for $80. But i disnt look at the specs.

https://www.fenixlighting.com/product/fenix-pd32-v2-flashlight/

They even sell an affordable switch.

https://www.fenixlighting.com/product/fenix-aer-02-v2-remote-pressure-switch-alg-05-mount/

And they will take 18650 usb port rechargeable batteries in a 70mm length. They make both sizes of 18650 bats with the usb charging ports on them. 65mm and 70mm. My older ligjt will take both. So i dont know why the newer ones wouldnt. And the fenix brand nattery is 70mm. So 65mm should work too.

Heres a decent deal on them:

https://www.18650batterystore.com/products/epoch-18650-3500mah-usb-pcb

I'm thinking about this battery bank. I read good reviews on sites i trust. Tomsguide iirc.

https://www.amazon.com/dp/B07YPY31FL/ref=cm_sw_r_apan_i_dl_VN19Q7S1KVXT0NCD84JX

I want to use this as well. Its a 4 in 1 usb charging cable. That would allow charging of four batteries at one time. I don't know if that will slow down charging. Its also usb 2.0. And not 3.0.

https://super73.com/accessories/headlights/quad-micro-usb-charging-cable-by-shredlights?gclid=CjwKCAjw6dmSBhBkEiwA_W-EoBuMy6BIj7eaJaz4Kpj5aWNOh7GRx7W8vc6oKz2XlYQ1i7PaKOtfAhoCAK0QAvD_BwE

***I would like to figure out which is fastest. Charging four at one time, two at one time or one at a time with a 3.0 usb cable?***

The four and two cable versions are both 2.0. You can only find a 3.0 in the single cable type.