[chbot] 18650 battery sources

[Mark Atherton]

I have also had some level of success with HobbyKing. From the 
appearance of their cells, they may be protected through

Jaycar at NZ$25 ea seems pretty steep.

Are you building a one-off-project, or a product where you need a 
continuing supply ?

-mark


On 26/10/2016 12:33 PM, Geoff wrote:
> 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 <mailto: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
>     <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
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ourshack.com/pipermail/chchrobotics/attachments/20161026/bbb4ea16/attachment.html>