Has anyone timed the battery life with an 18650 on high?
1561822
I have only used alkaline batteries from Walgreens. I plan on installing rechargeable high capacity batteries I bought on Amazon. so far though I am impressed with MPB ( miles per battery, lol ). I will give me an update of the results in about a month.
1561823
I have not clocked any of ours but we walk 45 min nightly and have at least 2 weeks worth so far.
1561824
My unscientific way on checking battery life was to just turn it on and let in shine. There is no high/low switch, just slide the barrel back and forth to make the magnifying lens intensify the light beam. With this in mind, I had my flashlight turn on for more than 10 hours and the was still useable light coming out. Hope this helps. Oh by the way, it had a full battery charge at the beginning. I am using the ultra fire BRC18650 3000mAh 3.7 volt li-ion battery that came with my flashlight kit with the included charger. Other people have done a more through test on these batteries. Like I said above, my study is more anecdotal not scientific.
1561825
My unscientific way on checking battery life was to just turn it on and let in shine. There is no high/low switch, just slide the barrel back and forth to make the magnifying lens intensify the light beam. With this in mind, I had my flashlight turn on for more than 10 hours and the was still useable light coming out. Hope this helps. Oh by the way, it had a full battery charge at the beginning. I am using the ultra fire BRC18650 3000mAh 3.7 volt li-ion battery that came with my flashlight kit with the included charger. Other people have done a more through test on these batteries. Like I said above, my study is more anecdotal not scientific. My unscientific way on checking battery life was to just turn it on and let in shine. There is no high/low switch, just slide the barrel back and forth to make the magnifying lens intensify the light beam. With this in mind, I had my flashlight turn on for more than 10 hours and the was still useable light coming out. Hope this helps. Oh by the way, it had a full battery charge at the beginning. I am using the ultra fire BRC18650 3000mAh 3.7 volt li-ion battery that came with my flashlight kit with the included charger. Other people have done a more through test on these batteries. Like I... » Read More My unscientific way on checking battery life was to just turn it on and let in shine. There is no high/low switch, just slide the barrel back and forth to make the magnifying lens intensify the light beam. With this in mind, I had my flashlight turn on for more than 10 hours and the was still useable light coming out. Hope this helps. Oh by the way, it had a full battery charge at the beginning. I am using the ultra fire BRC18650 3000mAh 3.7 volt li-ion battery that came with my flashlight kit with the included charger. Other people have done a more through test on these batteries. Like I said above, my study is more anecdotal not scientific. « Show Less
1807732
I haven't timed it but it seems amazingly long and I use rechargeable batteries. I am well satisfied with the value for the price.
1907410
yes. I work night and use them on a regular basis. I don't have to recharge them for 3 or 4 days unless I needed to use them for a for a 4 or 5 hour stretch above my normal usage. Meaning, that these batteries will hold a charge a lot better than the aaa battery pack (about 4 times) or the 18650 cell (about twice as long) and will give you a whiter light for a time in the ultrafire flashlights.
793281
I don't think you can charge 26650s on here. I only use 18650s, but you can use any of the three settings to charge them. From my understanding, the slower you charge it, the longer it last, so I always charge mine on the slowest setting, unless I'm in a crunch.
734064
Personally, I wouldn't. I could be wrong, but most of the better quality 18650's are protected, and on a light this nice, I just would not consider using less than a great battery. Not sure if that answers your question.
524784
It takes way longer than the smaller 3.7 volt batteries I have. I have a Nitecore charger and I thought maybe it wasn't working because the 18650's & the RCR123A's charge fairly rapidly. But, last time I charged them, I think the 26650's took 8 to 12 hours or so.
446
I have not. I have managed to get 6 months out of my batteries. One suggestion is to turn off the LED light if you have not already done so.
17941
I have found that the 18650 3000mAH batteries work very well with it. You can get the inexpensive charger andd use them over and over again or charge up an extra set for when the ones in the flashlight drain down. The specific brand I use is UltraFire batteries.
1995489
With this type of battery, the key is to discharge it before recharging. I've got well over 400 "burn hours" of my lamp now and it still holds a charge perfectly. When it's fully charged, I unplug it and burn it for a while, then let it sit until the charge is almost exhausted.
400615
I have the older model only with 3x AAA battery, However they do not last long, can I use the single 18650 battery in my model?
1267051
I purchased 3.7V 18650 3000mah Rechargeable Batterys. They seem to work well. I've used them for about a year so far.
1657342
I bought one of these here in March, and although I try to keep it plugged to mantain the battery between 40% and 80%, I have used it for 6+ hours for web browsing, some YouTubbing, some Google SketchUp and watching a 80 minute movie (there was a severe blackout that time), from less than full charge down to about 15%.
645470
I use Nitecore Intellicharger i4. It great for the 18650 and 26650. But 26650 take all most all day to charge do to there Large Capasity. But I think they made a new version with a lcd screen on it.
806561
I ordered 3 batteries & a separate charger for mine. The battery life is prob 5 hours on high beam. I have a two slot nitecore smart charger & three batteries. I think this item is just the flash not the batteries. Order battery type 18650.
127984
No, they are completely different sizes. This is about twice as fat as an 18650.
652764
I have only used the 18650s with a small nipple on the positive side. Not sure if flat will work. Nipple is only about 1mm high so maybe. Checked the play at the end of flash light ( The amount battery would squeeze in it more than 5mm so should work.....are the flats the same length as those with nipples...they may be longer to begin with...I would Google it to find out
1824217
Can't be. An 18650 is WAY bigger than a CR123A and has 2-3,000 mAh. In a word...unpossible.