@smoo99 You made me really excited since Jeni's started in central Ohio I thought Mitchell's was here too. It is not :( I have family up that way so next time I visit I'll have to grab some. Black Cherry + Dark Chocolate + grass fed dairy + half price of Jeni's = nearly perfect
@chellemonkey You reportedly can visit Mitchell's in Ohio City , watch it being made and oh yeah get samples. Why ami spending my day thinking about ice cream? Because it beats thinking about batteries.
Laptop battery's use them every day I also use AA battery's for a wireless keyboard and mouse but i never end up using them and i just use rechargeable battery's in them any way and AAA dear god i never find a use for them.
What I use the most are the rechargable ones in my phone, tablet, sansas, laptops and camera. Plus the rechargable AAs in all my solar yard stuff. As far as disposable batteries, I use about an equal mix of AA and AAA in my remote mouse, remote keyboard, remote controls, etc. I bought maybe 100 from a fantastic sale at Kohls a couple of years ago and have barely made a dent in them, even sharing with friends and family.
I just used up half a dozen AAA batteries trying to duplicate this science experiment
The guy who made the video used 0.9mm (19 AWG) bare copper wire. Sold out on Amazon. Probably due to this video. If you search for copper wire, you will see a whole bunch of rare earth magnets in the "frequently purchased with" section.
I started with 22 gauge wire, because I had some. What I had on hand was insulated, so I stripped off the insulation from 10 feet or so. It works, but the wire was wimpy so the "track" kept getting mangled. Home Depot had 25 feet of 18 gauge wire already stripped. I tried that next. It works, but there isn't enough wire to make a complete loop. The closer together the coils, the faster the "train" goes. A somewhat finer gauge will allow more coils per inch of "track".
HomeDepot also had 12mm x 3mm rare earth disc magnets, which they call half inch in their website. I also bought a half inch diameter dowel to use as a form for winding the wire. I thought it would spring back enough for the train to travel through quickly. Wrong. I then used a tapered pool cue to enlarge my windings. More research is needed to find the best diameter.
So I ordered 1 pound of 20 gauge wire, which is 315 feet. It will get here in a week.
In the video, the demonstrator uses shorter batteries in the first segment, and switches to what I think are AAA for the hill climbing part. The short batteries might be N cells. Since I am using 12mm magnets, a 12mm battery won't work for me. In any case, N cells are pricey, and they will have an even shorter life than AAA.
At least with the 18 gauge wire, this sucks the life out of the batteries very quickly. You will want to have a lot of extra fresh batteries if you're going to do this demo. I took apart a 9 volt to get 6 AAAA cells. The second trip through with a battery was noticeably slower. With more windings, there will be more back EMF when the train is moving, so it will draw less power. The slower the train moves, the more current it draws. A stuck battery will rapidly become a warm dead battery.
We go through a lot of car batteries, but only because that's what my girlfriend uses on her toys.
CR123A Lithium
Except at Christmas time where we have a bunch of AA-battery eating light sets and decorations.
My phone battery...
@Al_Coholic at least once a day!
Eneloop FTW
between Cameras and Police Scanners, AA FTW
need rechargeable AA and AAA but high Amh or whatever that is called...
I mostly use AA but I'm in need of AAA
Not to be rude or anything but do we really care? I mean we're talking batteries here, not flavors of Jeni's ice cream.
@smoo99 From ohio, huh?
@chellemonkey busted. Actually Mitchell's is just as good and half the price, and I would have to go with Black Cherry and Dark Chocolate.
@smoo99 You made me really excited since Jeni's started in central Ohio I thought Mitchell's was here too. It is not :( I have family up that way so next time I visit I'll have to grab some. Black Cherry + Dark Chocolate + grass fed dairy + half price of Jeni's = nearly perfect
@chellemonkey You reportedly can visit Mitchell's in Ohio City , watch it being made and oh yeah get samples. Why ami spending my day thinking about ice cream? Because it beats thinking about batteries.
Laptop battery's use them every day I also use AA battery's for a wireless keyboard and mouse but i never end up using them and i just use rechargeable battery's in them any way and AAA dear god i never find a use for them.
@money123451 I must have too many remote controls
@chellemonkey I don't have a TV so ya no remote controls lol
Sony VCT4 FTV!
AA for Swiffer wet mop, remote controls, transistor radio, shower spray cleaner, game controller, Apple Bluetooth keyboard.
AA Remotes, toys, game controllers, lots of stuff!
AAA batteries for LED headlamps and some toys, AA for most of the rest of the toys.
CR123A Lithium Batteries. Gotta keep my flashlights fed.
Rechargeable erythang.
Aside from car, cell, and laptop batteries, we use lots of AAs here. I use NiMH rechargeables whenever possible.
AAA & AA------power up!!!!
2032
Self-propelled by preference, though towed will do in a pinch.
As for primary cells, mostly I use AA size cells.
(rolls eyes at obvious misuse of the word battery)
@PocketBrain Then I shouldn't try to recharge them in my battery charger? I looked for a "cell charger" and keep finding cords for phones.
What I use the most are the rechargable ones in my phone, tablet, sansas, laptops and camera. Plus the rechargable AAs in all my solar yard stuff. As far as disposable batteries, I use about an equal mix of AA and AAA in my remote mouse, remote keyboard, remote controls, etc. I bought maybe 100 from a fantastic sale at Kohls a couple of years ago and have barely made a dent in them, even sharing with friends and family.
I just used up half a dozen AAA batteries trying to duplicate this science experiment
The guy who made the video used 0.9mm (19 AWG) bare copper wire. Sold out on Amazon. Probably due to this video. If you search for copper wire, you will see a whole bunch of rare earth magnets in the "frequently purchased with" section.
I started with 22 gauge wire, because I had some. What I had on hand was insulated, so I stripped off the insulation from 10 feet or so. It works, but the wire was wimpy so the "track" kept getting mangled. Home Depot had 25 feet of 18 gauge wire already stripped. I tried that next. It works, but there isn't enough wire to make a complete loop. The closer together the coils, the faster the "train" goes. A somewhat finer gauge will allow more coils per inch of "track".
HomeDepot also had 12mm x 3mm rare earth disc magnets, which they call half inch in their website. I also bought a half inch diameter dowel to use as a form for winding the wire. I thought it would spring back enough for the train to travel through quickly. Wrong. I then used a tapered pool cue to enlarge my windings. More research is needed to find the best diameter.
So I ordered 1 pound of 20 gauge wire, which is 315 feet. It will get here in a week.
In the video, the demonstrator uses shorter batteries in the first segment, and switches to what I think are AAA for the hill climbing part. The short batteries might be N cells. Since I am using 12mm magnets, a 12mm battery won't work for me. In any case, N cells are pricey, and they will have an even shorter life than AAA.
At least with the 18 gauge wire, this sucks the life out of the batteries very quickly. You will want to have a lot of extra fresh batteries if you're going to do this demo. I took apart a 9 volt to get 6 AAAA cells. The second trip through with a battery was noticeably slower. With more windings, there will be more back EMF when the train is moving, so it will draw less power. The slower the train moves, the more current it draws. A stuck battery will rapidly become a warm dead battery.
18650s, although, they're all rechargeable. So by actual numbers used and replaced, I guess AAs.