Chief eZee Operator
Hi,
Sometimes I read with great astonishment how people one would purchase a pack of battery for example a LiFePO4, and if it did well, and results posted, and then there is a chorus of cheers and hand clapping.
My company spent a lot of money and time testing batteries, you could get SEVERAL samples tested out well, and then even, a few lots, with hundreds of packs or even over a thousand packs without any problems (except certain mishandling such as bad soldering or something) , and then suddenly disaster strike. There are of course many factors that could screw up the battery in the manufacturing, the purity of the chemical composition, the particle size and particle sizes distribution, the thickness of the coatings, the separators and etc and etc. Therefore, I know it is very critical to find and source from a extremely well managed company, and even then there is still no guarantee, as what happened to us with some deliveries of Phylion. Those that does not pass the scrutiny I do on paper first would not get tested in my company, there is simply no point to waste the time and money.
Example I have tested LiFePO4 since more than 2 years ago, and continue to test them as new producers appears. But we don't simply jump into it if a couple of units looks OK. You will be suprised how big names in this product failed with 50 cycles when they were promising 1000 or more.
Then beside laboratory tests , we need to do field tests, and this is more difficult, so I picked a couple of customers who have exceptional experience and expertise like Flecc, and some customers who have terrible experience with our batteries but enough standing to give me a fair and truthful report without the aim to destroy me if it still goes wrong.
Now, to easily read the mysterious codes on the Phylion battery , it is very simple . Example The serial no. S/N: JGJHBF 100082 = 070826 = 2007, Aug, 26th the 82nd battery of the day.
J is 0 , ABCD... is 1234 and the last 2 digits is the nos. of battery done that day.
eZee is now delivering Li+ polymer battery. We made no new contract in 2008 for Phylion battery pending on the final outcome of the 1000 pieces that has been 'corrected' we are still delivering from 2007 contract until end July 2008 to some countries. I will decide on Phylion again when I see results for 1000 units, and some of them under the microscope.
As of 2008, we give warranty on the battery for 12 months up to 70% DOD discharged at 0.5C or 5 amps.
Wishing everyone a good time with their electric bikes.
W W Ching
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