How does it die when battery is exhausted, dark at once, or slowly degrades? The former, like my current 1200 lumen light, can land you in danger...
1670930
I have never had it die completely but I know as the battery degrades so does the amount of light it produces. I have had it on for 4+ hours without any issues. Great light for the price.
788609
Due to the way I was using the lights, I turned one on at 6:00 pm and at 9:30 pm it was still shining. It wasn't as bright as at first, but was still bright enough. They are NOT a one time use. My 'test' light still shines when I turn it on. They have batteries and an on/off switch. I don't see a way to access the batteries for replacement without breaking the casing, so once the batteries are dead, then the light is disposable.
1883158
I haven't had that issue with mine either. I use mine mainly for edging which puts a greater strain on the battery. My battery will normally last between 30 and 45 minutes and all lights go out. I would definitely call their customer service and ask about it.
2028454
Thank you Guys for all your answers. Just want to ask one more question. When is the time to recharge it to prolong its lifespan? When it is completely dead, when light is red when pressing that little button or should I rely on camera battery status?
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.
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.
975915
Only problem I had was I left the light on and the battery died. Other than that, AOK.
718906
Good light but battery is very bad... it is very bright when it works. . I would not buy again due to the type of battery it uses
14294
Yes, it happened to me. I returned it. I bought a Securitylng, 13000 lumen flashlight. It's bronze in color. It has worked great now for 6 months. Note: If one of your Li-Ion batteries has a bad cell, even though it shows it's not completely dead, your flashlight may not work. You need to have the batteries tested.
1946425
I'll assume it's over the whole thing. Since judging from the number of hours of the light operation. But again it's just an assumption. BTW, mine works great, I haven't had any problems with its and was surprised at how bright it gets.
515793
No! I've had my light a couple of years and this problem has never happened. I use it for an hour every night to take care of the animals. Make sure that you don't overcharge it. I charge mine in my car so that I can hear when the charge is completed.
1855363
Lately I've been a bit disappointed with the flashlights run time. I usually keep mine on the base but it's been dying withing 20 minutes or so, with noticeable kick down after maybe 5 minutes. This is leading me to believe it's probably better to charge it then take it off then only charge it when it's discharged. That's basically what I did with the first one I had and the battery had longer full run time over a much greater period of time.
403261
I don't think so, I am having the same problem with my light. I know it won't be long I will have to change the battery because of it. I just hope its not dead when I get ready to use it.
520277
Hey tuna, I placed a new set of batteries in, placed it on bright setting and left it on...I had to leave 2.5 hours later and I did not detect any significant degrading in light quality. I've used it at 2 hour gigs with the same results. Hope this helps.
608296
Haven't done that kind of research on the device, but to prevent draining, you could always unplug the battery from the light. Mine has been unplugged for months. I have yet to charge the battery since first receiving it, but connected the light yesterday and it still as bright as ever and runs all four phases without issue (high, low, intermittent flash, off).
787933
I have not actually "test" how long a full changed battery can last. But after I used it for nightly walk several times a week ( not on for all the walk, only a few minutes per walk, but when it's on it is with full brightness ) about three months later I found the brightness is weakening. I know it is not a very scientific way of "testing", but that's what I know about the battery. It is decent but not great as far as battery usage goes. Hope it helps.
1231347
I cant say, it has never died on me, but then i dont keep it for long periods of time. I will say this, it,s the best light i,ve ever owned.