1/10th of a volt doesn't sound like much, but when you couple that with a lossy cable with very tiny wires, the voltage drops to even less by the time it reaches the working end as these tiny cable wires create added resistance.
I do however have the new 510 PT that has no inline battery and a much heavier cable for less line loss, and it performs as expected.
But I am also a 5 volt fan, and I don't get what I want from a typical 3.7 volt source anymore. I used to, but once I got used to using 5 volts, stepping back down does not offer me the performance I am now accustomed to.
I tried for awhile with the larger 280 mah 510 batteries, but to get what I achieve with 5 volts takes two to three times as long a drag to be comparable. I prefer to take a quick one to two second draw, than hit on it for 5 seconds or longer.
But this is just me, my wife on the other hand uses the standard batteries, but that is only because she doesn't like, as she puts it putting a flashlight in her mouth. LOL.
When at home and in private, she is always grabbing my flashlight.
