On the subject, the local post office has posted a sign regarding mailing lithium batteries. Very specific around the number of cells per container not to exceed two. Two packages of two per shipment. That’s international.
Domestic, the sign says the cells must be installed in a device. No loose cells. I’m hearing “Anything liquid, fragile….any lithium batteries in the package” from the nice people behind the counter.
Should try to take a photo of the sign. It went on the wall less than a week ago. Could have something to do with these cases.
Side note, you could pick up a 4x 18650 “powerbank” off the Bay (I’ve got a black and white one with AILI on it - looks like an icecream sandwich) for like $10. It holds four cells in a small case plus is USB charge ready…
I hope this help you, I use; Food Storage Airtight Containers, you have to find the right size, what I have can hold 9 18650 and the small one 6 of them.
I have a reference single mode P60 drop-in that CCs 1.0A to the LED (not very reliable for batt measurement, I know) in this case, an XP-G which cuts off at 3.4V. I test runtimes of all my 18650s on it until cut-off voltage and then mark the approximate runtime on the tape.
For the pairs/quads I keep together, I mark them with a unique letter.
Yep I would appreciate it too. Seems like the 26650 box from FastTech is your best choice.
Thanks for the suggestion, but I would just like to store the batteries and not use them for a portable USB-charger.
Thanks for the pic! That’s a whole lot of batteries and neatly arranged!
Nah, don’t like tapes. But maybe marking the plastic wrapper using some marker would be good. Cause now I don’t know which of my batteries came first as they all look the same.
I ran across my car stereo’s face plate holder case stuffed in my glove box. Since I never remove my face plate I’m going to cut a piece of foam for it to hold 4 18650s. You might be able to find some cheap on ebay. Being long and narrow they fit in storage pockets a little easier than square containers.