What size of batteries do these devices use?
1939768
They are on Amazon here http://www.amazon.com/Fortress-Security-Store-Voltage-Batteries/dp/B00FDH6TOQ/ref=sr_1_23?ie=UTF8&qid=1381668108&sr=8-23&keywords=fortress+security+store
58034
They use two double a batteries. They only last about 6 months each but they work great until they stop. I am on my second order!
774696
Seriously? No, they're DL123A lithium batteries. It's a specific size. It's much smaller than a D
1132348
They are the same size as the 'standard' 9-V alkaline batteries. I've had no problem putting them in devices
1540941
I think that they have a small battery but that's just for the clock memory. The switched contact requires its own 12vDc power source.
272286
I really don't remember. This item was such a piece of junk I just gave it away. I do remember batteries for some reason, but they were like D sized. But don't quote me. Listen, GARBAGE is what these are. With today's technology there are many other digital options that fare much better. Steer away, you'll be sorry!
1527586
There are two different battery sizes involved, one for the clicker and one for the receiver. They are a lithium cell CR2032, widely available at places that sell batteries for electronics (I got a replacement at a local drug store, but I imagine that big box stores would carry them). Round, flat battery. The other one is a 27A 12v Alkaline battery, looks like a teeny AAA battery but even smaller. I didn't have the patience to go around looking for this (the drug store I bought the other battery from didn't have them) so I ordered several on line through Amazon to have handy. They were inexpensive. An extra battery set is included with each Click n Ship, which is a nice plus.
1292371
Can use TRIPLE "AAA" batteries if you buy the battery holder.Dont know about Double "A" size
2258602
"They use a 14430 LiFePO4 3.2V 300mAh battery which is about ¼ inch shorter than a standard AA"
853536
Any device with a 3.5mm (1/8 th inch) male plug on it will work. But keep in mind these devices are battery hogs. Don't expect to get dozens of hours per AA battery pair. I use mine on track at motor sports events and they are perfect for that. But I expect to replace batteries regularly.
1486168
The batteries are very good. I do not know what size you need but these are about half of the size short of a AAA and a little thicker.
162939
They are the same size of AAA batteries. Very good Phone batteries. I couldn't believe the price but it works like the original ones. Highly satisfied and recommend to who ever needs them.
2178185
i forget the name of them but it is indeed smaller than a AAA battery. The name should be included somewhere with the paper that came w/ the presenter. I found mine at a super market. Hope this helps
152812
The one I have uses 3x AA batteries. I'm not sure if there are different models.
1776814
Takes 2 batteries in both units. size 2032. How long they last depends on how much you use it. Mine have lasted for months.
1531287
Size D batteries, 3 to be exact. FYI, rechargeable batteries have worked great for me since I can change them before a weekend away.
418273
Its a small watch type battery about 1/8th inch thick and about 1/8th inch smaller diameter than a dime. It takes 3 batteries each of its 2 devices. I hope this answers your question.