[chbot] Resurrecting used 18650

[David I Baird]

Thanks for that Robin.

Indeed very handy.

*David I Baird*

Regional Construction Support Team Lead (Australasia)
Trimble Support | Trimble New Zealand
+64.3.963.5358 Direct | +64.21.90.2227 Mobile | 603758 VOIP
+64.3.963.5201 Support | Construction_Support at Trimble.com

On Fri, Jun 30, 2017 at 1:10 PM, Robin Gilks <robin at gilks.org> wrote:

>
> > A friend of mine gave me a stack of old laptop battery packs, with
> > several 18650 each. Some packs had cells showing heat damage - I'll
> > bring those to show at next meeting. There are about 30 cells from packs
> > with no visual damage, and I'm thinking to try and find out what
> > capacity they might have left in them. Several of you have done this
> > before.
> >
> > Currently cell voltages are between 20mV and 2.6V. What would be the
> > best charging strategy/algorithm for trying to revive these cells?
> > Is there any increased risk of cells overheating/catching fire, or
> > leaking? I have this expensive MC3000 charger where I can program pretty
> > much any parameter, but I'm less keen on having it smoking...
> >
> > Thanks for any tips etc.,
> >
> > Volker
> >
>
> You might find the following useful to identify the cells
>
> https://docs.google.com/spreadsheets/d/1fYjDxxCJXfm2wdpGWCaOUGq8V8TOE
> gsnplHQa4YQpRQ/htmlview
>
>
> --
> Robin Gilks
>
>
>
>
>
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