If you keep it on, how long does it last before battery dies?
509191
The light is real bright for about 2 hours. But as the batteries wear down the light become dim. For a quick light lets say in a closet there great . It all depends on batteries for quality of light. But for the price there great
509192
An 8 port AAA / AA battery charger is on Amazon for under $10, Amazon "Basic" series recharable batteries come in different pack sizes and prices vary...but if you want these on all the time, the charger and rechargable batteries pay for themselves within 3 battery change outs if you use alkiline batteries.
32706
It plays for 90 mins before turning itself off. However, if you press and hold the power button as you are turning it on, and the timer symbol on the screen disappears, it will remain on until the batteries die or you turn it off. There is no warning, it simply shuts off.
1971474
I suppose I've had it on longer than that on battery alone. Having said that, just keep it plugged in. It has a very long cord
179780
Only if it is already on, to save battery, if the device isn't active after about 15 minutes it shuts off. But if you turn it on your phone will find it automatically.
201895
I just used mine for 6 straight hours, and 2 hours the day before, still going strong. I would estimate 10 hours full charge to dead.
501728
the battery life lasts approx 4-8 hours...sometimes longer if not used continuously.
988217
I believe it stays on til the battery runs out. but I haven't had batteries in mine for months, after they zap themselves once or twice they usually just steer clear of it!
1627126
I keep this plugged all the time. I turn it on when I place a cup and leave it for several hours. Usually I have it on for 3-4 hours, but there are many times that I left it on more than 5 hours, and it seems to be fine. I even left it on over night by accident, but it was fine, ...although I don't recommend it.
1179319
It hasn't shut off on me yet, and I keep it turned on all day. I also have the power cord plugged in (it's hooked up to my TV) so I can't tell you how long the battery lasts. It works great, though
1184976
It last a lot! I have kept it on for two days in a row. With nonstop use it can last like 10 hours
1833570
It lasts for about 20+ minutes, but I don't use it for long except for short sessions. Please note, it's best when the battery is allowed to drained and then recharged to prevent memory effect. Most folks set it back in the charger which is the worse thing you can do.
1468264
It doesn't have an indicator that shows when it is fully charged. With that said, I have never had it die on me. It seems like it gets almost 8 hours of use.
1191887
Several hours. Check the item description. and google the item title for blog discussions for more details. I think it also matters on what you hook up to it, but I'm not certain. It's also ok to keep it plugged in while it is in use.
694398
I find that I get 16-18 hours of use before a recharge is needed. If I don't use it, but leave it on it lasts for about a week.
2050060
Its a pretty long time. I charge it occasionally, but it has never died on me while I was using it.
33834
It usually last for 2 hours. You should be able to get a second Battery, even a bigger one.
1757215
That completely depends on the speed you are running it. If you only run it at full speed, it may last two hours on a charged battery. If you run at the lowest speed, it can last up to 15 hours or so.