does that mean you need to keep a lot of spare batteries around?
1158526
No. The watch is rechargeable with a cradle to USB connector which comes with the watch.
1018106
If you a rechargeable battery, it goes around it to keep in from moving around.
61600
To preserve the health of batteries it is always a good practice to keep them stored elsewhere once they are fully charged. Also which ever device you have them in like a camera. Good practice if you know you won't be using that device for a while to remove them. Always store batteries in a dry cool area around room temperature. Hope that answers your question.
733290
That will depend on a lot of factors such as how you can and store for the battery, if you keep it charged, etc.
1149200
This charges your batteries so yes you need batteries. It is not ment to run all your lights and stuff with out at least one battery.
477637
To be honest I really don't think one is needed. However, if you place two batteries in tandem for more speed and power then I might put one on.
645587
I find that at full charge the batteries last more than 4 hours. I think it is a great idea to keep a spare charged. Especially if you are editing or taking video as well.
1680126
Yes, I use that space to store the spare battery. Have a spare one from the past set. You really don't need to hook up two battery. But if you do want to use it, the wires split and I think there are two slots on the board where you can plug the battery to.
1000832
I don't use mine terribly frequently, so have never needed to replace the batteries. If it helps to know, it does shut off automatically pretty quickly after use, so it shouldn't drain the battery overly much.
537131
Not that I recall, but it is a good product worth buying batterys for if none are provided.
1740169
Yes. I have not needed. A long acting battery has lasted more than 4 months so far
608529
If you have to recharge it more and more often, then the battery is near the end of its life.
1000831
I go thru maybe 2 fresh batterys a year. I say fresh, I suggest always right off the rack. also useage is important but I have been very happy.
1969193
Yes. But they're the watch style batteries if you need to replace em. Not rare, but not household type.
409421
I agree with the previous answer, but you have to consider the way the battery (s) are held in place.
1732977
I used these at work last winter, by the end of the day, it seemed that the batteries were getting tired. Not a problem, that was what I expected. Just take some spares with you.
212112
No. Just put 2 AAA batteries and you're good to go. Sorry for my delayed response.