26800 Lithium-ion battery

I made this for my charger :

Not pretty but it works.

The highest setting I use on the MC3000 is 2.8 amps so that's what I'm using on these - goes pretty quick

Still not the safest setup. I make sure the battery is connected first to the dowel, then the dowel inserted in the charger. The red and black wire magnets tend to always find each other...

LOL - When I was a kid, most things I ordered came with a little gift of some sort, I liked that tradition and wanted to keep it going… The candy is something we used to do around Halloween when we could source the candy, but then I found that Costco has them year round. When I restock at Costco they always ask what the heck we do with so much candy. I usually tell them it is my wife… :smiling_imp: Other places may give a discount code, or something along those lines, but I prefer an actual gift of some sort. Biggest problem is keeping the employees from eating them all, or they melt in the summer time…

So while trying to find a similar size cell to find a cell holder. I found this List of battery sizes - Wikipedia and they now list the 26800 cell about 3/4 the way down. “Gaining popularity since 2019, the format for e-bikes and transport. Optimal ratio of discharge currents, life cycle and cost.”

yea that would be the problem i suppose I will try soo to make something similar.

Nice work to u/Khas too!

2 x 26800 arrived from a lot of hobbies today. I love this format, its huge! Was going to order 4 but that costs more than ordering 2 times.

just saw this, thanks for the heads up. I do have dummy cells, they're 14500/AA, I bought them for that purpose to use in a 9xAA light , so you're right I didn't think of that, they will pass current through them. But would a battery too? Either way, I'll use the dowel to be safe.

On another note-

ordered (2) more QB26800 today, and a vtc6, and shopping has gone down! Thanks aloft hobbies for taking a look Into this! I paid $5.90 ship for (3) cells today, even if it takes a little longer that's ok. I appreciate it!

I got an extremely melted mess of a Reese's peanut butter cup. I had to throw it away

Shipping sweets along with the product is not very common over here but it happens from time to time. Something I always recommend for occasions like this is Haribo's Goldbären. They also sell them in 10g mini packs for gifting. :))

If you like gummies, see if you can get Black Forest brand. Very good.

I ate mine anyways...

That’s no excuse for throwing away chocolate/peanut goodness. Toss them next time into the freezer.

Ummm, refrigerator?

Ach… beat me to it.

Well, it was mashed flat and flowing outside the wrapper and all over everything. Was quite the mess to clean up. I suppose i could have put the whole box in the fridge but wanted to get the batteries out to check them out. I emailed them and asked them not to waste put chocolate treats in packages in July.

I did get the incentive to run to the store to purchase a whole bag of peanut butter cups... i love 'em. Yes, they are better kept in the fridge

M&Ms

I agree 100%, would have been a much better choice for a shipment in July.

mine was a peppermint patty, which you’d think might melt but was fine.

They melt but harden when chilled. Can’t recall whose it was, but someone left a bag of assorted chocs in my car, or should I say greenhouse, in late summer. Everything was liquid if you tried opening one. Overnight in the fridge, and even though you might have to pick flecks of chocolate from all over the inside paper, they were perfectly edible.

Finally got some time in the work shop, got this rigged up (theres two batteries charging here, thats why theres a rats next of wires).

Thanks TomE and Khas for the idea on doing this, and thanks to whomever told me not to use a dummy cell!

I soldered wire to a 8mm x 2mm neo-magnet (i got a variety pack of 100 neodymium magnets this week, all 2mm thick, from 6mm in dia. up to like 16mm, like $12 but theyll be handy when i need them) and then used a sheetmetal type countersunk washer and torx screw to hold the other end of the wire to the wooden dowel (paint extension pole cut down to about 65mm long). i made one to make sure it works, going to make the other soon. I still cannot find the rest of the 6-pack of aligator clip wires i ordered from amazon a couple months back. so luckily this worked! Soldering to the magnet definitely weakened it, but it still has enough bite to grab the battery with no worries (I could pick the battery up with the connection). i also liked that the countersunk screw holds the wires (charger side) very tightly, less nervousness for me to walk away from the charging setup.

Looks good. Does your charger recognize the resistance to be low enough for the full speed charge rate? That’s probably the last step in determining if it was a success. You certainly don’t want your rig adding so much resistance it takes 2 days to charge this mammoth battery.

Another option if you dont want to mess with soldering magnets is a take on what some battery reviewers use for their test rigs:

https://www.amazon.com/dp/B00004SBCO/

You can solder some brass buttons/copper scraps/maybe just bunched up loose stranded wire then clamp it with micro clamp that has no continuity between clamps. I believe the added pressure reduces resistance over just using a magnet to hold. Obviously don’t crush your battery but it’s an option.