[chbot] 18650 battery sources

Geoff sdfgeoff at gmail.com
Wed Oct 26 00:33:36 BST 2016


Jaycar and GlabalPC sell them for $25 a pop.

You could try HobbyKing ($6 USD) as they normally have at least some
quality control.

On Wed, Oct 26, 2016 at 11:55 AM, Volker Kuhlmann <list0570 at paradise.net.nz>
wrote:

> Charles mentioned 6 Oct that his experience with 18650 lithium batteries
> includes lots of purchases where the batteries lose capacity quickly
> after a few cycles, i.e. are basically rubbish.
>
> That's consistent with reports of Chinese factories pulling apart
> stuffed laptop batteries, relabelling the extracted cells for on-selling
> as brand new total junk. Then they end up on trademe, with clueless
> sellers saying they never had any complaints and "anyway, many sales =
> good quality product". 'nuff said.
>
> There's are lots of what's collectively referred to as JunkFire(TM), but
> no proof that they're ever of any quality.
> Capacity claims are lies more often than not.
>
> I found 1 seller on trademe
> http://www.trademe.co.nz/Members/Listings.aspx?member=254580
> who sounded like he knew what he was talking about, but he isn't selling
> any more. I have his Samsung and Panasonic models and he made sure they
> were not fakes.
>
> Aliexpress doesn't sound like a good choice.
>
> Given the situation, where would I best buy something like a dozen 18650
> for a reasonable price, >= 2Ah, and no protection?
>
> Can people post their good and bad brands, models and sources/sellers
> (all of these please, or it's often of little value)? It's likely of
> interest to others too.
>
> The application is powering some stuff for a 5-10 days, I intend to hook
> cells up in parallel, with those little protection boards as discharge
> protection. Charging in standard chargers, if I have to re-charge once
> that's OK.
>
> Thanks muchly,
>
> Volker
>
> --
> Volker Kuhlmann
> http://volker.top.geek.nz/      Please do not CC list postings to me.
>
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