I´ve heard you can use 14500 batteries for these newer “AA only” ZLs. I’m getting an H503c and need some clarification, please:
1.) It will give you a brighter turbo and step down quickly, but remain at higher output, longer. ?
2.) If you use a 14500, and then use a “AA” it will not recognize it, unless you do a trick to twist the tail cap “off and on” ?
3.) Which is a good 14500 to use? I was concluding something like: Unprotected, button top: Vapcell H10 - INR14500, 1000mah, 10A high drain. ???
All modes have roughly the same output current as with Nimh except H1, this is due to the input current limit which is met with Nimh but not with Li-ion voltage, above Vin=2V H1= 1.3A, with Nimh H1 = 615mA at Vin=1.2V
flickering at L4
When Vin>Vout regulation is somewhat linear since input current does not change much with Vin, but the IC is still switching and Iin>Iout, so not exactly.
thermal regulation doesn’t seem to work and in H1 the driver becomes very hot and the LED starts flickering after 10~15s (the driver is not heatsinked in this test, the LED is mounted outside the driver)
efficiency is really bad, but it’s not good either with NimH
there is no low voltage protection, nor reverse polarity protection
Bob_mcbob replied afterwards with some more info, notably that there is a timed stepdown after 60s on H1, and that his model has LVP, I tested mine several time but no LVP, which is pretty bad for li-ion.
