ysgramor
(ysgramor)
8
I have the same problem. New Acebeam H30. I have a bunch of 21700 batteries, sometimes when I install in my H30 a battery which is not fully charged, if I try to turn to turbo, three blinks and the lamp turns off. This doesn’t have anything to do with contacts (already checked and cleaned) and is only partially related to battery voltage, since it has happened with batteries at 3,8V, voltage at which the battery should still be able to run turbo. Also this is not the normal behaviour since the lamp should step down to a lower level, not turn off completely. It only happens with newly installed/replaced batteries - not if the battery was installed when fully charged and then used, in this case no problem.
As a side note: the levels in my H30 don’t have anything to do with those displayed on the box. On “low” level I don’t get 23,5h as stated but just 12h. This is because “low” level is much higher than 120 lumens as stated - from my measurements closer to 250. Also “mid” is not 380 lumens, more like 550. Has anyone else noticed this? It seems they have recently updated the model with this, and some other subtle changes: for example now it memorizes moonlight mode even though on the manual it says it shouldn’t.
Had I known the “low” level was much higher than stated, I would have never bought this headlamp. An headlamp without a level in the 30-150 lumens range? Ridiculous. 12h runtime isn’t nearly enough for most applications, considering that if you use turbo or higher levels just a little bit it will become much less than that, more like 8-9h. There’s no alternative level that allows you to save battery while keeping doing what you were doing since 3 lumens isn’t enough for almost anything. It’s a pity because that led and driver seem to be very efficient, more than 12h with a 5000mAh battery at 250 lumens.
Does anyone know of a headlamp with a similar efficiency, and with lower and actually usable and useful levels? i.e. at least 20h at 120Lm with a 3500mAh 18650.