dl-ev.com,how about chinese supplier

chinaev said:

hi,everyone
how do you think about EV and lifep04 battery suppliers in China?Are their technology reached maturity level?

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technology seems fine. sales techniques and shipping are questionable.

chinaev said:

For the sake of cost reduction,most chinese bosses hire fresh graduates.

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a mistake because it makes them look like idiots.

chinaev said:

May i ask are you a EV conversion engineer?

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not exactly. I am a semi-retired mechanical engineer with a background in software development, management, and have built one DIY EV (www.envirokarma.org). I am very interested in promoting Evs because I feel they are the key to urban/suburban transportation fo rthe future.


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chinaev said:

It is amazing!

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what is amazing?

chinaev said:

But owing to the battery technical limits,popularization of EV is still hard to realize.A good EV battery must have the ability to fight against bad environment and improve the degree of safety.

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The lack of popularity is part marketing.... most people don't believe they could use a car that has a limited range. In reality a recent DOT study shows that 60% go no more than 40 miles on a daily basis, and 90% go less than 100. Today's LiFePO4 cells can easily be used in a small conversion to achieve 50, 75, or close to 100 miles... 'safer' than sitting on a tank of gas.

chinaev said:

How fast could your car run?40,60,or higher?

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My car, which is still a old-tech flooded lead car at just 96volts, has aproximately the same top speed as it did with gas. The motor has the same horsepower almost. Top speed is around 75-80mph on the level. Acceleration is 'enough'. I will be upgrading to 120v of LiFePO4 soon. I had some 'issues' with a wholesaler here in the US failing to deliver pre-paid batteries, forcing lengthy Legal proceedings to attempt recovery. The delivery process from China is the problem, not the batteries themselves.