hello, i bought four of these headlamps for construction work, and i would like to know why the batteries dont last for longer than three hours on any
83017
While I'm certainly no expert, it just seems to me that there has to be some trade off for all that light it puts out
83018
The batteries only have enough stored power to run a headlamp for about that length of time. You can get extra batteries for very little money on Amazon. Keep them charged and with you and the inconvenience will be minimal.
858369
I guess it depends on the batteries u use , I used Duracell and have had same ones about a month now are still working . We even used the torch outside at BBQ left turned on at table for a little extra light !!
1086295
Hello, El Jefe, These batteries last a long time in my Rosewill 3 "D" Cell, Cree-LED Flashlight. I don't use the light all the time, but it is very bright, and the charge lasts for months. I use an Ansmann energy16 charger. I have used a pair of them in the ignition part of our kerosene heater, and they too, have lasted a long time. I have never recharged them since they begin lighting up our heater. I really like these batteries.
2061137
This unit contains NiMH batteries. One would expect these batteries to last quite a long time. I use my units as night time security lights, therefore the usage is rather low. This unit contains 1 x AA 5-Pack Ni-MH 6V 900mAh batteries. I wouldn't know the part number and I would bet an online battery supplier would be the cheapest place to purchase the batteries. I have been having my lights three or four months and they have performed perfectly. If I get a few years service from my lights before the batteries fail I will have gotten my money's worth and then instead of replacing the batteries I will just purchase new ones. Good Luck !!!
1268147
Make sure your batteries are correctly installed and then plug it into the provided charger. I charged mine when I received it. Also check all battery compartment connections. I had a slightly bent connector. If it fails to work after that I would defiantly as to exchange it. They really are great headlamps. Despite some of the minor issues.
1095504
Hi, this headlamp is powerful! It shine lights from my apartment's balcony across to next block which distance is ~20m. Battery life should be good, mine is still shining brightly from my 1st use which is a couple of months ago - anyway LED torchlights consume low energy. I find this headlamp a very good buy.
1048039
Send it back while you can. The batteries are expensive, not good for much else, and my light fried after a couple of months. I bought a Weiita H807 Starlight LED Headlamp, 300 Lumen headlight found elsewhere on Amazon. It uses good old AA batteries, provides plenty of light, and has been going strong since the first week in Sept. My son also has one of these headlights and we use them on a daily basis.
747781
I haven't yet expended the batteries. According to the instructions (with 3 good D cell alkaline batteries) it should last 3 days on High power and 6 days on low. I am inclined to believe this info. When on low it puts out quite a bright light. I purchased 10 lanterns to gift out; and I caught a great sale on the batteries at Amazon also. 6pack for $4.95!!
1214624
Milliohm hours deals with longevity, and depending on the flashlight it won't affect brightness. Most flashlights won't allow the brightest levels when battery starts to get low. Also the quality of the batteries and charger had an impact. My boss had a crappy 3600 mAh battery that lasted half as long as my 2600mAh Tenergy, both 18650 style. I would say that the 18650's are a better option than two 123's, but some flashlights won't take the slightly larger 18650's.
1180024
A long, long time...considering how bright they are. I don't ever just turn it on and leave it, so total time to "dead" batteries is unknown to me. I was with a police officer last night; my little 3 cell light was obliterating his department provided flashlight. He wanted to know where to get one like it!As with the other comment, I like to change the batteries about every month or two. Unless you just leave the switch on, they never kill the batteries, they just get less bright until you tire of the old batteries.
407818
I would make sure those batteries are recommended for the light. I would also make sure they are installed properly. Some batteries are also required to charge a certain amount of time before you can use them. The batteries could be defective. I would take them somewhere like Batteries Plus and have them test the batteries. Hope this helps.
191509
i'm not sure... but when the batteries are getting low, the brightest beam only works for a split second, & the lower beam only works for under a minute. new batteries will make it like new.
1706699
There must be a loose connection somewhere or either the batteries are not making a good connection. We installed ours about 2 1/2 years ago, still have the same rechargeable batteries, and our lamp comes on without fail every night. I would check both the wiring connections and insure that the batteries have a tight connection too.
1112238
I've never had mine last 3 hrs on the 820 lumen output. An hour to an hour and a half would be more accurate based off my experience. That's with the surefire cr123s you can find at lowes and some cheap 18650s.
172801
Hello there, this lights came with 4400mAh, but please change the battery, because battery life die very soon, at new, batteries life work like 45min, but in the third week of use dies in 30 min and every time you use this light, battery dies sooner, I bought a pair and change batteries, but light are great really
206769
Are you using the heavy duty cells that came with the lights? I suggest alkaline batteries..I used the batteries it came with and had no problems. Alkaline lasts longer. They don't drain a lot. Turn lamps off when not shooting, that helps. I'll bet its your power source. Blaise
268362
I would guess you just got a defective battery. My experience has been fantastic. I use it almost every night. The beam is brighter than any comparable flashlight I've ever owned. I haven't ever had any problem with the battery holding a charge, and it lasts for a long time. Did you charge it fully before use? You should have. Also, the instructions say to plug it back into the charger after every use. I do this even if I only use it for two or three minutes. Unless you've had it a long time, Black and Decker is pretty good about standing behind their warranties. I'd give them a call.