On the box this flashlight says it's just as bright with 3, 6 or 9 batteries. So...why would you use more than 3?
177057
The reason to use more that 3 would be longer life. I doubt the extra batteries would provide a brighter light as mentioned. However the problem with using the extra batteries is that if you keep them in it for a long time then they can start leaking. However as with any flashlight if you take care of it, it will work fine.
177058
Unlike old-style bulb flashlights, LED flashlights have an internal power converter which provides a constant current to the LED light source. If the batteries are partially drained, and their voltage is low, then the converter will draw more current from the batteries to provide the same constant current to the LED. If the batteries are fresh, the converter will draw less current from the batteries. If there are only 3 batteries in the flashlight, all the current has to come from these three batteries. If there are 9 batteries in the flashlight, then the current is shared by all 9 batteries, and the flashlight can keep going for more hours. The purpose of the converter is to maintain a constant level of brightness, whether there are 3 partially drained or 9 fresh batteries installed. When the batteries can no longer provide the needed power, the converter gives up and the flashlight goes dark.
177059
I can't give an answer. When I put in 3 it did not work and when I put in 9 it did not work.
177060
That is s better question for the company that makes the product. I do know that it does work with 3 or more. I am not sure about longevity and how that is connected with the number of batteries.
177061
Because you can. This will make it last a long time, perhaps the life of the flashlight.
1570279
I think it would be overkill. It is a tactical light so is heavy and wider than average flashlight. Something much smaller would be easier to handle and right one would illuminate well.
780064
Why does anyone think people want more than 1 mode on their flashlight?! Seriously, I have NEVER needed my flashlight to flicker annoyingly, or needed a dim flashlight. The different modes are nothing but a pain!
1908894
I'm sorry, but I can't answer the question because it was a gift so i'm not the one using it. All I know is my son in law said it was the best flashlight he'd ever use.
2164464
What is the problem with switch on the first flashlight.? I bought two more of these of these flashlights the first one worked fine for a week so I ordered two more by the time I got the second order the first flashlight would go on sometimes by pushing the button and other times it wouldn't. And then about a week later I received he other two flashlights. They are very well made machine but I think the switch on the bottom is no problem. I noticed a few other feedbacks that I wasn't the only one that had a problem with the on-off button please answer thank you.
1949417
Ut only fits 3 batterys but you can buy an extra 4 it will fit 4 batterys in yhis awsome flashlight
1517655
I've always used them with two cell flashlights. If the six batteries are in series (- of one battery against the + of the next battery and so on), then you'll increase the voltage but the overall power capacity remains the same. For example, two 1.5 volt batteries in series gives you three volts, but overall should have the same overall power capacity as one 1.5 volt battery. Six would be 6 x 1.5 = 9 volts. Now Having said that, I have recycled nearly dead batteries into flashlights with these LEDs and still get very useful amounts of light for several more months (where the conventional flashlight bulb would have become too dim to use).Hope that helps,Joe I've always used them with two cell flashlights. If the six batteries are in series (- of one battery against the + of the next battery and so on), then you'll increase the voltage but the overall power capacity remains the same. For example, two 1.5 volt batteries in series gives you three volts, but overall should have the same overall power capacity as one 1.5 volt battery. Six would be 6 x 1.5 = 9 volts. Now Having said that, I have recycled nearly dead batteries into flashlights with these LEDs and still get very useful amounts of light for several more months (where the... » Read More I've always used them with two cell flashlights. If the six batteries are in series (- of one battery against the + of the next battery and so on), then you'll increase the voltage but the overall power capacity remains the same. For example, two 1.5 volt batteries in series gives you three volts, but overall should have the same overall power capacity as one 1.5 volt battery. Six would be 6 x 1.5 = 9 volts. Now Having said that, I have recycled nearly dead batteries into flashlights with these LEDs and still get very useful amounts of light for several more months (where the conventional flashlight bulb would have become too dim to use).Hope that helps,Joe « Show Less
688566
The 9V battery "hack" to get 6 AAAA batteries is completely true- I just pried apart a Duracell 9V and ended up with 6 batteries to use in anything that supports AAA or AAAA. It's wonderful (once you get through that ton of plastic and metal surrounding them!). I also found that those mini AAAAs' + and - were opposite from what seemed logical, so flip them around until they work.
509276
I don't think you can use another single battery. The pack comes with 9 AAA Batteries, enough for all three flashlights. I love these things.
1395479
I haven't used 3 AAA batteries with this light, but only the rechargeable battery that came with it. I had the Cygolite Expilion 800 USB Bicycle Headlight and this one isn't as bight as that. It's about as bright as a two battery regular flashlight. It has not gone out or anything, but it has two weakness which is miner. The lens can fall off sometimes and the battery case now gets turned around inside the light. This's correctable and hasn't caused me a lot of trouble. Because it can be used as a flashlight and a bike light it is handy, but if your looking for a light like the Cygolite Expilion 800 USB Bicycle Headlight then this wouldn't do it. I miss that kind of light a lot and someday I might get one again. If you just want to be able to see the road and that's it then this one will do it. Hope this helps you because it isn't easy finding the right headlight.
356349
check the voltage for the batteries that are typically used for your flashlight. These batteries are the same size as 123 camera batteries which are 3 volts. These batteries are 3.6. This may be causing your problem.
1812170
If I'm remembering this specific flashlight, it does NOT take AA batteries! There are some that take a 3.7V 14500, which is the same size as a AA, but this take a 18650 3.7V, which is entirely different. Only if you are going to use is often would it be worth it to purchase the light, batteries, and charger. IMHO, You will not be seeing 1000 lumens. I have other lights, rated at ~180-200 lumens that I like better and are just as bright.
1018104
When you use 3 AAA batteries, you don't need that tube but when you use one rechargeable 18650 battery, you slip that tube around the battery before putting it in the flashlight so that it fits better.
1734858
I still have original batteries that came with the flashlight in mine from a year ago. Don't use a whole lot though. I have problems with it wanting to go off and have to shake to get it to come back on. It does have a lifetime warranty though. You can use rechargable batteries in it.
1908640
Yes, this flashlight uses 3 1.5V AAA batteries. In the original package, 3 non-rechargeable batteries are included. Make sure not to use 1.2V AAA batteries, or the flashlight will not be bright.
1517657
I've always used them with two cell flashlights. If the six batteries are in series (- of one battery against the + of the next battery and so on), then you'll increase the voltage but the overall power capacity remains the same. For example, two 1.5 volt batteries in series gives you three volts, but overall should have the same overall power capacity as one 1.5 volt battery. Six would be 6 x 1.5 = 9 volts. Now Having said that, I have recycled nearly dead batteries into flashlights with these LEDs and still get very useful amounts of light for several more months (where the conventional flashlight bulb would have become too dim to use). Hope that helps, Joe
1137731
The unit I have runs 1 for low, 2 for medium 3 for high, 3 for flashing. (I'm pretty sure I scorched my retina looking at the light to get you the answer) I love this unit. I just bought a second one but configured to also double as a flashlight. For $40 you have to figure it's a piece of junk but it isn't. Hope this helps