hmm, mine doesn't work once the light flashes .. say i'm on 4.2V (usual) button flashes, thats it .. its cut off.
what i often do is unscrew the battery half way and back in. this turns off the battery warning .. go to pd and drop it down to 3.3 and I can get another hour or so if i need it. (read: too lazy to get up and go to the charger for the other battery)
Am i missing something here . The battery is usually at 3.2 V if i do the Bc at this point, I have noticed it at a higher voltage if I have been
vaping at 4.5V or so.
I try and avoid the LR stuff .. lately on 2.6Ω CE2 R5's (great at 4.3v) IMR 18650's.
too the poster above ,, yes 4.3v is what you should get out even at low battery. The current drain is higher as the battery discharges tho.
eg . assuming 100% efficiency (its closer to 80% in quick tests I did)
4.0v out into 2Ω .. is 8W (number chosen for do it in my headness) (4V^2) / 2Ω = 8W
If battery is 4v .. then its 2A drawn from the battery (8W/4v = 2A)
If battery is 3.2V then its still 8W out .. but now 8W/3.2V = 2.5A
what this means in RL .. the last half of the battery will drain faster than the first half if the volts out is kept the same.