Local source for 18650 batteries?


#1

My son is experimenting with light painting in photography so I want to make a few led based light paint sticks. Planning to go from simple single color led to perhaps one driving one or more WS2812 led pixels from a arduino…

Thinking I could use some 3/4" pvc conduit as a case that would work well as a holder. Could use a pair of AA cells to get 3.0 volts but a 18650 would give me 3.7 volts with a much higher capacity. I’ll use a boost convertor to get it up to 5.0 volts or try running it at 3.7… Plus I can add a charger to avoid replacing batteries…

Anyone know of a decent local source for 18650 cells?

I thought about using the Nokia batts that we have but attaching leads to them is a bit of a pain and the form factor isn’t ideal for what I want…


#2

How many do you need?

I bought a bunch of 18650 cells from @Gonazar that I can’t use as the C rating was too low for my eBike battery build. These would be fine for your project. $5 each and from a reputable supplier.


#3

@packetbob I brought 20 cells back from China from a known good source as well.

I can probably spare you a set of the terminals I used in my battery holders too (I only bought 20, wish I had bought more).

Oh, and you can buy 18650s from Battery World on Boundary too (http://buyabattery.com/lithium-battery/li-on-rechargeable/)


#4

Can you let me know what the good source was from China?


#5

I have a bunch of used 18650 batteries I’ve salvaged from laptop batteries
that you can just have.

I also have a bunch of empty battery packs that use 4x18650s and have two
usb outs (one is 1amp the other 2amp), which you can also just have.


#6

Thanks all for the various leads…
I’m getting some from @Majicj that will solve my immediate needs…