18650 Clip Holder Box Case for 18650 Battery Copper Contacts Storage Box Case Holder 1 Cell Pack of 2

This is a very nice and sturdy battery holder. I used it to hold my 1 battery for my AcuRite Atlas weather station power supply. I was able to run the weather station for over 10 days, so I am sure I will be able to make it with even bad days of weather and have plenty of power.

These are pretty Sturdy for the 18650. The Battery is Very Tight. The only Drawback is There Is No POLARITY Marks so it's easy to install a Li-Po Backwards so make sure you have Circuit Protection

I like these holders as they work well with 18650's with flat or button-tops. Also I can solder on thicker gauge wires than usually come with the cheapo 18650 holders. The only downside is that the single-cell holders don't have screw holes to mount it to the chassis like the double-cell ones so you'll have to fashion a hold-down.

I used six of these to make a 3s2p pack for Supernova mini pro 45 light, front and rear, that I use on my Gocycle G3. I was able to stick six of them together with double sided 3M tape. You must grind away the excess plastic dimples on each slot in order to achieve a perfect fit. The batteries fit very tightly on the first try, then the springs get spread out allowing for the batteries to fit more easily. Good luck

18650 batteries with heat and protection caps will not work Period! Plane batteries fit very tight but it doesn't either way it is made to fail. There are only two tiny 2mm flat posts that hold the two sides together. they will snap.

This can be a great replacement for 1042 or 1042p, I bought 2 1042 from mouser and they were slightly bigger than it's supposed to be and the battery didn't fit, so I came up with this one. the footprint is the same as 1042 and battery fits properly as well

Easy to solder. Worked a treat.

Update: After some playing around with these, I found that they CAN be made to work with protected batteries, however it will require some modification. On the negative end, I used pliers to compress the contact down to being almost but not completely flat. And on the positive end, I broke the tab off of the contact so that the battery's button instead slips into the little slot that holds the contacts in place, and makes contact with the flat surface instead. Unfortunately these ended up not being suitable for the project I intended to use them in. If you are using regular unprotected 18650 batteries, then these holders could work for you. However, you should know that the fit is very tight, especially the first few times batteries are inserted and removed. So much so, that they actually left visible scratches on my batteries. After a few times, the contacts will get crushed down a bit, and batteries will then be a little easier to get in and out, but those first few times are a real pain. You absolutely will need to have some sort of removal aid like a ribbon. For a protected battery though, these absolutely will not work. They simply aren't long enough to be able to hold a protected battery. I even tried using pliers to squeeze the contacts flat, and still wasn't able to fit a protected battery in