what size battery is required, and what is the expected battery life?
74994
The battery is a CR2 3 volt battery. Depending on how much you use the light it should last many months. I have mine on a Glock 19 that I use for home defense as a night stand gun and the battery lasted over a year. I would definitely recommend this light. Great price. Great quality.
74995
I have a Duracell ultra CR2 battery. As far as how long it lasts, I've had mine for about a year. I don't use it as a Flashlight just test it every now and then. Holding up fine. Batteries are little expensive.
74996
Lithium CR-2, 3v. I have had this since 11/2012 and the original battery is still strong. It rides on my Sig P-250c in my night stand drawer and I check light function periodically so I am not using it extensively. So far its always been ready if needed.
231328
Battery - guess it depends on how much you use it. Sorry I can't be more specific
1861222
Hi Isaac, you could expect approximately 3.5 to 4 hours of life from the battery.
524540
Your question needs to be clearer - do you mean physical dimensions, voltage, capacity? Are you thinking of common batteries, such as AA, C, D, etc., or are you willing to use the less common ones like lithium coin cells or LiPos? How long would you like these to light before the battery is depleted? The community is happy to help you, but you need to provide more info on your requirements and limitations.
745521
Battery is supposed to last about 8 hours but can vary depending on volume, etc. I haven't really pushed it that far to see if it will last that long.
1348065
Well, I do not have it before me right now. But it is about the size of an adult male hand. You did not ask, but it works great and is well worth the money. Just keep spare batteries with you, it is not battery hungry, but if you need the device and you don't have spares...well I have been in that situation.
445569
Hard to say. How big are the batteries? How much ambient sunlight does your location get?
1390284
Using standard batteries, you can expect approximately two hours of battery life
329932
Average Battery Life is about 4 hours. The product description, (That MOST people seem to ignore), is "UP TO 5 Hours." 5 Hour Battery Life IS NOT Guaranteed. On a FULL charge, battery lasts 4 to 4.5 hours.
658174
I brought the laptopp for one friend. I have no idea of how long does the battery typically last. Sorry for the that
2233860
Ram - 2 GB, HDD - 74.4 GB, Battery lasts 1 to 3 hrs depending on type of usage
1382595
Not long. 20-30 minutes max. Mine came with an extra battery, which makes it use able. You always have to have a spare charged. Other than battery life, it works great.
1057289
I got somewhat less than 2 hrs (but I wasn't doing much other than moving the mouse to keep the screen from going to sleep) - about what I expected. This is a basic (6-cell) battery. there are extended (9-cell) batteries that will last longer. Also important to follow the "break-in" procedure (full charge - full drain - full charge, etc). Some laptops may have to "learn" how to charge a new battery before it can do it efficiently, and fully.
1410010
About3 to 4 hours. Battery isn't a strong point here. I didn't buy it to use the battery however, so I'm pleased with it. Really a grade A laptop. I'm sure this varies based on task and performance settings.
1976566
Very long. I can sometimes get into some lengthy gaming marathons, and the battery has never been an issue. I estimate 4-6 hours depending on volume and battery health. Also note that you can use the device while it is charging, but the included cable is too short. If this is a major concern consider purchasing a longer USB cable with a Micro-B termination on one end.
2007906
Haven't used it for more than 4 hours, don't know exactly how long it would last. Would expect not to have less than 6 hours of usage from it at its depletion rate. Battery life becomes a non-issue with this battery.
1401098
16 x 10-1/2 surface....do not know about any battery. Did not pay attention to the warranty as not important to me.