1. How long do the batteries last on full chg? . 2. Can they be used while plugged in, & does each one have to be plugged in separately for use/chging
2047722
The battery last all day, but I keep mine plugged into my computer to increase the pc volume. They are chained together and use a single USB port and they pick up the sound from a single plug from the PC's sound output jack. Once they are charged, the USB plug can be unplugged. The charge last a long time. I wish my laptop battery could last as long. I also us these speakers on my cell phone while sitting in the yard, watching movies.
972002
I have only ever used the speakers while it was plugged into my Nook, & the Nook was plugged into power so the speakers were not running off the battery. But I can tell you that they both are charged a the same time on one plug. Hope this helps!
2047723
I have had mine last for 18 hours, they both have batteries, and are connectable for 1-2 or 3 I have 3 connected. 1 cable into the phone/ipod/computer leads to the speaker (s). Hope this helps, we love ours!!!!!!!
2047724
Battery charge is about 6 hours i would say, they can be plugged in and playing, the cored connects the two together so they can be charged together. the cored design is poor for use, it just get tangled easy and is annoying to deal with, over all a good buy to have some portable speakers they are pretty loud of there size.
577405
It really depends on the battery you are using. The one that comes with it is very good quality, but if left on accidentally overnight, even that will drain very quickly. It's not meant to be left in the on position, a very common complaint with this device since it's so easy to turn it on by accident. I left mine on once and the wires melted and ruined it, but the company replaced it for free even though I was outside the return window, so that was awesome. That said, to answer your question, the battery life is very short if left on, I would say less than 4 hours at most. I would try replacing the batteries and if that doesn't help, contact the O'Mega, they are very helpful.
203969
Battery life seems long to me. My first one is with my Grandson and he loved it, used it a lot. No reported problems from his Mom, who would have let me know. The second one is not used as much and has the same batteries for several years. There is an adapter outlet on the back.
524588
Beats me - that's the one problem with this device, I use it starting in about April through maybe the middle of July and then the batteries are dead. I'm not planning to tackle the problem again until spring, but it's just a bunch of batteries bound together, and I'm pretty sure with a little effort, I can figure out how to "make" one and use rechargeables or something so it will last longer. They used to carry these batteries on line and even through some seller on Amazon, but my guess is there were so many complaints about the product, people stopped carrying it - I know the place I bought it stopped carrying it and the batteries a long time ago. Hope this helps. Beats me - that's the one problem with this device, I use it starting in about April through maybe the middle of July and then the batteries are dead. I'm not planning to tackle the problem again until spring, but it's just a bunch of batteries bound together, and I'm pretty sure with a little effort, I can figure out how to "make" one and use rechargeables or something so it will last longer. They used to carry these batteries on line and even through some seller on Amazon, but my guess is there were so many complaints about the product, people stopped carrying it - I know the... » Read More Beats me - that's the one problem with this device, I use it starting in about April through maybe the middle of July and then the batteries are dead. I'm not planning to tackle the problem again until spring, but it's just a bunch of batteries bound together, and I'm pretty sure with a little effort, I can figure out how to "make" one and use rechargeables or something so it will last longer. They used to carry these batteries on line and even through some seller on Amazon, but my guess is there were so many complaints about the product, people stopped carrying it - I know the place I bought it stopped carrying it and the batteries a long time ago. Hope this helps. « Show Less
962954
It depends on what you mean by 'lasting long'. If you expect them to last a month or so that is going to greatly depend on whether you get hot weather or how much mA the GPS is going to require. If all you need is to them to run a day or so, these should be fine you'll just have to regularly swap out the batteries, but if you find that your device runs out of power before the day is over there's a few things you'll want to consider. Getting a smart charger with 'negative delta v', overheat protection, discharge/refresh with a display letting you know the capacity of the battery is the best because you will figure out how much mA your device needs and how long it will last with the batteries you plan to put into it. They can be expensive like the Maha or LaCrosse brands, but they will give you the info you need to determine if you need to get higher mA batteries or the batteries you have are no good. You can initially get a sense of how long your device will run for if you use alkalines. If they last a week, these rechargeables should be fine, but that also greatly depends on how much voltage your device needs to function properly and how many batteries you need. 1.2 volts for a 6 AA battery pack might not work correctly and you'll have to check to see if your device will accept rechargeables. If it does that's a bonus, because then you can use NiMHs and you'll be just fine. It'll also be easy to figure out how long your batteries will last and then you can find out when you need to switch the batteries out before they become dead. There's also NiMH car rechargeable battery chargers with the above i mentioned to keep your batteries charged.
2221585
Are you charging them with unit turned "on" or "off"? I would leave them both "on" and charge them every 8 hrs whether they need it or not. Once you program the collars don't shut them off. Otherwise, you will have to program them individually again. Hope this helps.
769340
I'm not sure about question 1. 2. Only the single pump takes batteries. You must use a plug for the double pump. 3 I have not tried the single. I chose the double because it is time-saving. You can also use it as a single if you choose to. I didn't need the battery option (I think you will be spending a lot on batteries). I do have a converter that allows me to plug into my car's cigarette lighter... That has come in handy for on-the-go.
251099
I personally do not knwo as I used them for a teaching aid in a project but depending on what batteries you use they can last anywhere from 24-48 hours continuous (LEDs on). The consumption on it in standby mode is very little (~70 micro Ah) so depending on if it is placed in a high volume traffic area or not will also determine how fast the batteries deplete. The consumption when it is on and lite is ~70 mAh.
987696
We usually don't use ours for more than 90 minutes of continuous use. They could probably hit 2 1/2 hours with a decent battery, but it might be a stretch. I don't know if you need them to run continuously for the whole time, but we try to conserve power by turning them off when not actively in use. We're running them on Energizer rechargables.
70223
I'm sure you can use rechargeable batteries as long as they are correct size. I use mine for a while and due to climate and salt water air exposure, I remove the batteries when it's not in use. battery bleeding acid will corrode the connections. You don't want to leave batteries unattended in any unit for too long.
1804534
yes this is a very good product and highly recommend it....is best to leave plugged in but runs fine on batteries....not sure how long it last but a guess is at least 2 or 3 hours... a great product really.....my transmitter is plugged in at my computer but the speakers work fine on batteries......i use mine for Pandora on my computer and works great...
2067856
Sara, did you ever find out about these units running on batteries? I too am looking for a unit for camping. Thanks.
35129
I have not done that as of yet. It is my understanding you can leave them in as long as you want and a trickle charge will keep them at full charge. This info was from another sight.
450433
only when they stop working. I've had to replace a few. A couple because even changing the battery wouldn't stop the chirping. The others when lightning struck, and completely killed them. If they are still working, then there should be no reason to replace at a specific time. My parents have some that are 25 years old and still work like a champ.
507747
The batteries are not removable. You must charge it periodically. It has never gone dead on me, I just plug it in to charge from time to time. I believe the battery life is given in the specs- something like six hours between charges- plenty of juice for a teacher. You will not use it plugged in, I don't think, because this amp is very portable. You can walk around and would probably not want to be attached to the power cord. (emergency charge only!)
378091
They are designed to be plugged in all the time you are not using the cart. This way your batteries are kept at 100% charge and will last longer.
1274030
Yeah, I saw where it said "drained" battery, but while researching these types of rechargers I saw another one that said "recharges drained batteries" but a few sentences later says, "don't use on discharged batteries" which I'm assuming means don't use this on dead batteries. Why can't they just SAY this works on completely drained batteries or not? Or am I just being too cautious? I'd hate to get this and have someone I love depend on it getting them out of a jam only to find out that welllll, it's not QUITE that good, yanno?