>
>
> Way back when I first started looking at their Li-Ion cells for some
> production units I believe they sampled me several pieces. You can
> try writing them on form at the contact page on their website. IIRC,
> that's how I got them. In the meantime, I've been buying small
> quantities for prototyping and testing from their site as it's fast
> and relatively inexpensive.



My experience with chinese vendors over the last 10+ years, is that the
samples are fine, but in production the product varies, sometimes over a
couple orders of magnitude.

With the batteries, samples were fine, and almost all the cells in
production were fine.
A few of them however, would spontaneously go thermal, and blow out the ends
spewing boiling electrolyte.  We were never able to induce this behaviour in
cells, with uncontrolled charging at 2C, or even drilling charged cells.  My
theory was that insufficient catalyst in the cell, and a nonexistent or
stuck vent left it with a pocket of H2-O2 gas, which recombined rapidly.

Random sampling won't pull up these failures, and we never did figure any
test that could be done to identify them.  We disqualified the vendor,
recalled all previous production, switched to Sanyo cells, and never had a
problem again.
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