Hi,
I pulled apart an old laptop battery and have a number of G5 Sony/Fukushima 18650 cells (pretty sure they were produced pre-nuclear meltdown saga).
I have separated each of the batteries and am currently charging them on my newly purchased Lii-402 battery charger (although discovered interestly only can charge 3 at a time).
Just wondering if anyone has found any useful products which need 18650 batteries, or other projects which may utilise them.
Would appreciate and ideas.
Thanks.
LMAO Fuk u too buddy … Joke.
Thanks for correcting that for me.
No worries, Mat. ;)
Names matter especially if they have a negative connotation.
I placed mine into powerbank enclosures. Can also use them to replace cordless vacuum batteries, if you are sure they actually run off the same type of cells.
I'm currently testing the capacity of the 18650 cells from 10 or so disassembled laptop batteries using a Lii-500
some I will use in DIY powerbanks. like this one for US$3.23 delivered from aliexpress.
some I was going to use to make a very large cell for solar storage and… that's as far as I got.
Ive also had a similar thought, if you use 7 li-ons in series you can use a 24v lead acid solar controller safely, described here. Just need a reliable way to balance the cells. In the end after reading a thread about a guy burning down a house with a homemade ebike battery (which has a bms) Ive had second thoughts
I've got a couple of those, filled with old laptop batteries.
They work fine. That particular one will take 3 or 6 cells. Note that the USB isn't live all the time, you need to switch it to 5v. You can't charge your laptop & phone at the same time while travelling.
There are nicer ones that don't have the clunky switches and hold more cells as well.
I've collected probably 8 or 9 old laptop batteries (so 24+ cells) but also haven't found a real good use yet. Just small projects replacing old Lipo batteries that have died. I'd use them in more projects if there was a cheap and easy way to charge & protect the cells from over-discharging; but as of yet I haven't found an AIO circuit that'd achieve this.
Electric toothbrushes? :-)
I was going to say powerbank. Coupled with a decent buck/boost converter, you can generate any voltage/current you need! (within reason)
Like switchblade88 said, you need a protection circuit or you risk damaging them. The laptop battery should have a circuit board in it that does all of this.
Collect a few thousand more batteries and build your own DIY Tesla (electric car)
most vaping devices use these batteries if you're into that, usually like $10 a pop for batteries
It was actually Fukushima.