4AAA(LR03) to C Size Parallel Battery Adapter Holder (Pack of 4)

I bought these so that I could use rechargeable AA batteries to power my Kit Kat clock.It works for that purpose fantastically.I haven't had them for very long, but even with rechargeable batteries not necessarily being as ong-lasting as regular batteries, I am convinced I get more use between battery changes with rechargeable AAs in these adapters than I was getting out of the C batteries I had been using.using these adapters with rechargeable batteries instead of buying new C batteries pays for itself in just over a year (I was using 2 C batteries, $1.25 at Follar Tree, every other month).

The AAA batteries tend to pop out of the side easily, so can make it snag a little on install if the tube is tight. However, this is easy to push in, and don't seem to affect removal. Just a MINOR annoyance, not bad at all. Defiantly works to use AAA batteries in a C device.Don't expect these to last as long as a normal C battery. C batteries come with normally up to 6000mAh (usually less), AAA comes with normally up a max of 1250mAh (usually less), so 3 AA batteries will give you a max of 3750mAh. So a changed set should last you about little over 62% of the time of a standard C batter. However, good AAA rechargeable batteries are more common, and take up less room. These help keep you from having to keep up with multiple batteries and charges.

I have several 2 C Maglights, and I decided to add one to my 3 day bag. I was tring to streamline the electronics in my bag to only use AA or AAA to limit how many batteries I might need. I found these, and they work great. These give me the option of using my AAA batteries that I already have, and if I'm in a pinch can revert back to C batteries if I needed to. Its a tight fit inside my Maglight, but they do fit. Since I have a lot of rechargable AAA batteries, I purchased these for all of my 2 C Maglights. The adapters have not given me any issues, and are a great little modification to my lights.

I used energizer lithium batteries with this. It fit just fine in my maglite not problem with clearances and the light worked just fine.

Could be user error though. Lol

Never knew this was an option to convert batteries between sizes. Takes 4 AAA and works well for C size applications.

Does not work. Put 4 AAAs in and ran a clock for 2 weeks. C cells are cheaper than this + batteries. Would not recommend.

I have an old MagLite two cell flashlight. The thing is indestructible, and I had already changed it to an LED bulb. However, buying a package of C batteries just for this light makes no sense, hence, these adapters. Add four AAA to each adapter, and get much cheaper battery cost and since the batteries are in parallel in each adapter, the per-battery drain in use is very small. Should last quite a long time.