How long will it keep warm using a 17 ah battery (Schumacher XP 2260 portable power source) on a low setting? Thank you
586983
1-2 hours, depending on the condition of the battery. The heater draws over 7-amps. You really need a much bigger battery. Deeply discharging the battery frequently will significantly shorten the battery's lifespan. We use ours in a motorhome to preheat the bed in the evening, running it for about a 1/2 hour. It draws too much power to leave it on overnight unless we have shore power.
410548
No, I think it is good for a max of 8 hours or it will kill your car battery. I generally unplug it when I go away from the car for more than an hour. I will not warm up that much over a period of several hours. This is my second one and I love them.
1998520
It does get quite warm. Does he have room to move off it for awhile. I think I read good for 2-3 hr. Will recharge when weight is gone. My dog uses it only intermittently and I periodically put it .in the frig to quick charge. Don't think I would buy this if the dog is always on it
1031976
Yes, as long as you keep the power on, it will alway be hot and running. I had mine on for about 3 hours.
1426650
at room temp 20-22C runs warm to touch but not hot... avoid boxing it in and hot conditions, running nonstop may reduce lifespan...i try not to run it nonstop but if i do it just runs warm and i keep it suspended
1425634
I would not recommend using this the same as a block heater. A battery that gets cold, will not charge back up when it gets warm again. Get a temperature controlled switch and set it to turn on at 45 degrees and colder. If the battery is to cold when you go to start it you can ruin it. According to a Google search Cold Cranking Amp rating on most batteries are done for 15 seconds at 50F degrees, so for every degree below 50F the power of your battery drops.
1153624
I've had mine about 40 days. Everything is working fine, better than expected actually. Have charged both batteries twice with no issues. As stated earlier, the charger does get warm. Probably warm enough to 'burn off' dust if it has any. As an HVAC mechanic, I generally get calls in the fall for dust getting burned off ( particularly in gas units), and people think their house is on fire. Can't guarantee that's what you're experiencing, but that would be my first guess. If in doubt, send it back
2235111
About 3 hours is probably the longest I've used the lamp (I use it in my sewing room). I use CFL 120v 14w and don't recall that it got hot.
89979
There are low, medium and high temperature settings. Low is approximately 5 hours and high is about 2 hours. 7.4 volt/2,200mAh. Wall charger is included.
2121206
Specs say battery is good for 250 hours. The key is remembering to switch it OFF after the job. If it is left on in your bag for weeks on end, then it will drain the battery. Otherwise it will be a very long time between battery changes, as mics use almost no power at all compared to electronic devices.
1288373
I have no issues with this battery. I run my laptop for hours at a time typically, so I keep it plugged in. If you were to run as little as possible, I'd say it would probably last an hour or two.
597399
Get a temperature compensated battery maintainer. Your battery will last longer and you will use less juice at the plug.
695799
Not very long, depends on environment, the colder it is outside or in the room where you are, the longer it takes, also gets really hot at times and no low setting, just the one setting. Says it has a thermostat? but not sure how well it works. I like my other hand warmer I bought on amazon from ithync that has a high and low setting and an lcd window that shows how much battery life is left and the high or low setting. It has a 4400mah battery but seems to last longer than this one because I can choose high or low and low lasts longer and is plenty warm. Hope that helps
565015
I don't know exactly how low they will tolerate but I've had mine out in minus -20 degree temps without any problem, its best to use the external 6 volt lead acid battery in its weatherproof enclosure, I also cover the battery case with a plastic bag, this is what I do, I live in upstate central NY , Good Luck and if I can be any more help, just ask Sincerely Mary
1969218
The battery gets about 3 hours of heavy use, but that varies on screen brightness and if you use the LEDs. As for the heat with very long usage and bottom vents covered it gets hot enough you don't want it on your lap. However I bought a cooler master laptop fan and it sovled the problem
2022497
I have used mine in temperatures as low as 20 below zero (for a string of 5 days) and it functioned flawlessly. The one draw back is the battery life is somewhat reduced by the cold temps. Hope this helps.
2206612
If the heating pad does not have a built in thermostat (and I'm guessing it may not because I do not see any module protruding from it), the heating pad will continue to heat the battery. This would not be desired when it warms up. I would only use the heating pad when when the weather is very frigid. I would use the pad only when the outside temperature goes below 10 degrees F. Those are the days when you need it. Otherwise you might cook your battery.