1. How long does it hold a charge and/or do you just change batteries?
615199
It does hold a good charge. I don't believe you can change batteries but I've never looked into that.
615200
you do not change batteries they are rechargeable. as for holding a charge sitting with the unit off the battery will hold a charge well over a week
197250
Good question. I never had to replace battery since it is rechargeable. A personal bad habit is that I watch tv all night. So I've experienced normal charge can last over 12 hours of continuous use. Then it recharges during the day while I'm working. Also on weekends I use it during the day as well, but between uses I slip it back into the charger. I hope that helps.
124832
Mine lasted longer than that, but you can change the batteries. Carefully twist the plug where the on/off switch is. It opens, and you can access the batteries.
1418756
Sadly, I'm not able to answer that question adequately at this time. I haven't had mine long enough to know. As a habit, I do remove the battery once I'm done with it. But I use mine until all charge is down and then have a full charge ready to go for the next time and "that" charge appears to hold when I use it.
1148266
It doesn't look like the battery can be replaced. I had mine for a couple of months and it holds it's charge very well. A simple plug to wall charger or computer with its USB cable and it charges with no problems. It holds a pretty good charge for couple of days-depending how much u listen.
2219709
Same as the other two responses, I have never used it long enough at one time to find out. I rarely have to change batteries though.
2198568
battery life is good (Haven't done an exact measurement, but it seems like I recharge about every 3 or 4 days). It has an automatic sleep function that preserves the battery life. Full charge in about 2 hours.
126631
We've used ours for almost two months without a battery change. We use our remote for 30 minutes or more once a week, so we've got 4-5 hours on our first set of batteries. It stands to be said that we only use it for a remote and not as a laser pointer or timer.
2036734
how long does a battery last? If I have not used it for more than a year will the battery still be good or do I need to replace it?
1911836
Once charged it holds for a very long time. We have ours on our sailboat for late night anchoring adventures, and it has held a good charge for months. We've never had to replace the battery.
1188171
Typically, battery can last up to 3 years, if kept on regular charge cycles. We recommend changing battery every two years.
1437102
Once charged, it lasts at least 24 hours. You have to hang it on the charged, so no, you can not charge it while using it. No additional batteries are required except for what come in it (sealed).
1769782
The battery is just a 9volt EZ to change. I have only used it 6 or 8 times for about 45 to 60 minutes each time and the battery is fine.
962017
while operating - at least 6 hours. I think mine died during the 7-8 hours after a full charge. I leave it in my car and the batteries remain charged until I actually use it and I'd say it keeps its charge for awhile, on a monthly basis. Not too sure about annually.
2111935
I haven't had any problems with it holding a charge. I have noticed if I don't use it for a few days it doesn't work. So I would suggest charging it every other day or so. If mine is charged it usually lasts a couple hours.
235388
It is rechargeable so you will never change the battery. You plug it into a USB port.
142746
Not sure. I used it for a week, a few hours almost every night. I have yet to change the batteries since I got it.