How long do 4 AA batteries (eg Energizer) last? What about rechargeable ones?
1384186
You I just tried it out yesterday to answer this question. Usually I have it plugged into my USB adapter, so it doesn't matter to me on battery life. I'd estimate about 12 hours on standard AA and 8 on rechargeable - but then it's slowed down enough to where you'll be seeing a difference in the amount of air it's pushing.
1384187
The type of rechargable battery matters regarding the OP's question. I used the standard 1400mah Energizer that come with their Rapid Charger and it ran for about 7 hours on high speed, but it was turning very slowly at the end. I have not tried it on low speed but the low speed really doesn't move much air. I am going to try it with some 2400mah next and hope to increase the time that it retains its speed.
1384188
For me the batteries lasted quite awhile. I used it for short term trainings and a trip to Africa. I only used it at night when I was sleeping. If used more than that it might not last long. I didn't try rechargeable.
1384189
I'm not sure, I just use one of the rechargeable USB battery packs made for recharging cell phones - and they last for a longggg time. It lasted for nightly use on a camping trip for 4 days and still had power left with this one:http://www.amazon.com/gp/product/B00CTK762E/
871752
For solid use, I agree with M. Kilgore. In my experience it has lasted 3 1/2 to 4 days (not counting bedtime), though of course, far longer with intermittent use. My most cost-effective solution on batteries thus far, after researching failure rates and short lifespans of the rechargeable batteries, has been to order the 12 pack of Streamlight brand batteries here on Amazon, usually when it is at the $18.66 price point. As I rely heavily on this device for certain occasions, I want to be sure I have a battery with power when I need it. However, if I used it all day every day, I might revisit the rechargeable concept. For solid use, I agree with M. Kilgore. In my experience it has lasted 3 1/2 to 4 days (not counting bedtime), though of course, far longer with intermittent use. My most cost-effective solution on batteries thus far, after researching failure rates and short lifespans of the rechargeable batteries, has been to order the 12 pack of Streamlight brand batteries here on Amazon, usually when it is at the $18.66 price point. As I rely heavily on this device for certain occasions, I want to be sure I have a battery with power when I need it. However, if I used it all day every day, I might... » Read More For solid use, I agree with M. Kilgore. In my experience it has lasted 3 1/2 to 4 days (not counting bedtime), though of course, far longer with intermittent use. My most cost-effective solution on batteries thus far, after researching failure rates and short lifespans of the rechargeable batteries, has been to order the 12 pack of Streamlight brand batteries here on Amazon, usually when it is at the $18.66 price point. As I rely heavily on this device for certain occasions, I want to be sure I have a battery with power when I need it. However, if I used it all day every day, I might revisit the rechargeable concept. « Show Less
1314834
AA batteries. Depending how many times the alarm goes off, they should last approximately 6 months.
1071454
Depends on how you [ab]use them. If you often run them all the way down, and/or run them down only 1 or 2% and back up to 100%, they may last less than a year (or only take half a charge after a while). If you seldom run them below 30%, and don't recharge until they're 90% or less, they may last 5 years or more.
755302
I have one of these...use it daily & can expect about 6 months to a year from it before I have to charge the batteries.I use rechargeable batteries in mine.I believe the length of time it will last, depends on how often it is used, & what the quality of the batteries are.Example: Duracell bateries will outlast store brand name batteries by a long shot....
11903
4 AA's just realize with the cost of the batteries, you might want to just get 1200mah ni-cad rechargeable's. Depending on use they should last a full year and to recharge only takes about 2 hours. It is not stated in the description, but the mixing valve is included.
915219
The hubby and I use the Energizer E2 batteries. We haven't had good luck with rechargeable batteries. But the E2's last a long time compared with other batteries.
1048556
AA Rechargeable Energizer, popped right in, and is charging now. The old Eneloop lasted though, for over 5 years. I just replaced it today. I can't remember when I even bought it, or where for that matter.
115050
4 AA batteries are used. I would recommend rechargeable ones because they go fast!
1069731
If you have fresh batteries they will last from 3 to 4 days, best thing to do to conserve energy is to turn them off at night, or when you are not in need of them.
847359
AA batteries. Last about a month in the kitchen due to lots of traffic and sensitive lotion sensor...but last a long time in the spare bathroom!! Excellent!
987697
We use Energizer Lithium batteries. They are not rechargeable, but they have lasted through 2 hour services and only got down to maybe 75%. We put in fresh batteries for "important" presentations, and use old ones for let formal occasions.
1388640
I do not use rechargeable batteries, I use the regular alkaline type and get my 4-6 hours that I need out of them each time. I replace the batteries on the next gig in order to assure no surprises midway.
833184
4 AA. I've used rechargeables with it, but they don't seem to last as long as alkaline.
2040011
We are lucky if the rechargeable batteries last 3 hours...so very annoying. I started doing a little research and found that these rechargeable batteries are the best on the market : eneloop AA 1800 cycle, Ni-MH Pre-Charged Rechargeable Batteries, 4 Pack (discontinued by manufacturer) Anyone have any experience with them?! They have really good reviews. I'm wondering if I do get them if I should get a better battery charger, if it really matters at all?!
53995
I am not qualified to say how long the batteries will last based on your description but would assume based on my past experience that they will have a fairly long life compared to other style batteries. Unfortunately they are not rechargeable.
2095257
4 AA size batteries. Rechargable. One can also purchase these batteries along with a charger,combo pack. Much better deal. I will never use nothing but rechargable batteries from now on. Save lot's of Money this way!!