With a pair of new batteries how long will the item power on? Or how many hours will it operate before you have to switch the batteries out?
270908
With NiMH at around 0* F they last about one hour before I start to notice a lowering of the heat output. That's while snow blowing on a tractor. Walking around, my toes stay comfortable for about 1.5 hrs. In both cases I am wearing well insulated boots that used to keep my toes warm when I was young. At 2 hrs I would have to change out the batteries but cold hands in wool gloves in Air Force mittens drive me inside long before that.
270909
I wore them for about six hours and the batteries were still working. I did not change batteries because these warmers barely heated enough for my feet, so I only used them once or twice before returning them.
270910
Different batteries have a different stated capacity. The greater the MAh rating, the more power the battery holds, and thereby the longer they will work in a given product.
270911
With rechargeable NiMh batteries, it lasted close to 2 hours at zero degree. but at the end, you can barely feel the heat with bare hand. I don't think you can feel the heat thru socks, but will prevent feet from getting cold.
270912
I used alkaline batteries that I bought from Harbor Freight with a coupon. My shift starts at 5:00 am, and by early afternoon they were getting pretty weak. I anticipated that and took spares. As far as I was concerned, it was win, win! After all, the heated soles are for comfort. The batteries were not expensive. We heat our houses in winter also. That costs.
270913
Mine lasted about 8 hours. I've only needed it a couple times. I was overall satisfied.
1436770
I will handle that for about 5 to 8 hours and not more than that on two batteries. I have a koolatron cooler hooked to mine and it last about 8 hours
431450
This radio requires 3 AA batteries which you must purchase. Additionally, it has a 6 volt dc socket for an after market transformer or power source ( check radio shack or Wal-Mart) next to the plug for a head phone. I usually get about 50 to 60 hours before changing batteries depending on brand.
33834
It usually last for 2 hours. You should be able to get a second Battery, even a bigger one.
1906180
It takes 2 AA batteries and my battery life has gone for about 2 years without ever turning mine off. I have left the batteries in and the switch to "on" the whole time and it has taken 2 years to require replacement.
962019
1: a long time, I'd say at least 8 hours. 2: It doesn't use power when off as far as I've noticed
2126781
With the regular charger,a couple hours. Best to get an additional battery to switch out!
711121
Battery: The battery in this unit is intended to operate the unit for 15 seconds after power loss due to an accident or crash. If the unit is turned on without the Cigarette Lighter Adapter attached you can manually start recording and the camera will operate for approximately 1.5 hours on battery power. Note that the screen will turn off after 30 seconds to conserve battery.
225398
Please give us more information. What happens when you insert new batteries and switch on?
1946906
Maybe 30 min, but you can bigger batteries. Just make sure its safe for the motor
924119
It will run about 10-15 minutes with the battery that comes with it. With a more powerful battery it will run close to a half hour.
1628033
probably a couple of hours if substantially discharged. The batteries I'm charging are not totally discharged - I just top them off every couple of weeks to keep them fully charged and it takes 15 - 30 min.
1597591
There are two different settings. There is a setting where it will stay on all night, and there is a different setting where it turns off after 20 minutes. The switch for the time setting is on the bottom of the animal, next to where the batteries go in, so it does't get changed accidentally.
1553927
Can't say exactly, but around 8 hours. Usually plug it in the night before we use it.
1039285
More than 2 hours actually. I left mine unplugged running at max brightness overnight to see how long the battery will last. I was up for more than 5 hours before falling asleep and it was still running. Light at max wasn't as bright compared to when it was plugged in though. There's most likely a circuit preventing the battery from over discharging as it turns on then off for some time still before I plugged it back in.
437744
I'd say mine lasts just under 3 hours at the lowest power levels. The battery is easy to remove, so you can always buy a second battery to double your life.
1853326
Not long at all. I had to stop using mine. When you put batteries in you get about 8-9 good hours, then light begins to dim. It is worthless!!