BYD: Electric e6 Can Reach Over One Million Kilometers (621,000 Miles) On Original Battery

MAR 25 2013 BY JAY COLE 11

Even though BYD has produced and/or sold almost 2,500 all-electric e6 sedans worldwide (most in China) since the car launched in 2010, in the US we know them as the company that makes outrages claims and then doesn’t follow through.

The e6 was to come to market in the US for 2010, with some fantastical specs along in tow (249 miles of range, 0-60 in under 8 seconds), and obviously, that did not happen.  An expected 2010 arrival turned into 2011, then to 2012, then to early 2013…poor US infrastructure was reportedly to blame.

The e6 Can Get A Full Charge In Has Little Has 40 Mines (@ 100 kW), 20 Hours at 3.3 kW (On Board)

The e6 Can Get A Full Charge In As Little Has 40 Mins (@ 100 kW), 20 Hours at 3.3 kW (On Board)

And by the time the e6 actually hit roads in China (May of 2010), BYD’s range claim was down to 186 miles, with the car in getting more like 140-150 miles of real world range from a 48 kWh battery pack, and a 0-60 time of about 14 seconds.  BYD has promised better things for the US model (notably a 60 kWh pack), whenever it goes on sale.

But lets never-mind all that, because now the company states that the battery will retain 75% of its original capacity after 1,000,000 kilometers (621,000 miles):

“BYD’s pure electric vehicles use an Iron-Phosphate (or Fe) battery, which touts industry-leading safety qualifications and superior life. The battery maintains high-performance capabilities over long periods of use and can stably withstand extreme conditions. Taking the e6 pure electric vehicle as an example, after 4,000 charging cycles, the capacity of the battery remains still remains at above 75% of its original capacity, and the total mileage can reach over one million (1,000,000) km.”

BYD e6 Interior Is Well Appointed

BYD e6 Interior Is Well Appointed

We attempted to do a little research to find out the ‘secret sauce’ behind this unbelievable retained capacity, but it appears to be no different that the standard LiFePO4 chemistry at work here today in the US in the Fisker Karma.

2012 BYD e6 EPA Ratings (click to enlarge)

2012 BYD e6 EPA Ratings (click to enlarge)

Better still, BYD says they have road-proven e6s backing up this claim to some degree, 800 of them in fact as taxis in Shenzhen, China (along with 200 K9 buses), that are showing no signs of capacity loss after more than 70,000 km of use on average.  In one particular case, over 300,000 km (186,000 miles) has been logged.

“Since 2010, BYD has conducted its electric vehicle commercial operations on a large scale. As of the end of February this year, BYD had rolled out 800, e6 pure electric taxis in Shenzhen, accumulating close to fifty-five million (55M) km in total mileage. The mileage of a single electric taxi is well over 300,000 km, which is equivalent to the total mileage accumulated in more than 10 years of driving an average private car. 200 K9 pure electric buses have been running in Shenzhen and have exceeded fourteen million (14M) km in total mileage, which means each vehicle has reached over 110,000 km on average. These electric vehicles are operating steadily, without any apparent reduction in performance.”

So, while we would love to believe a good-news story like this, we have some trepidation at taking BYD at their word.

BYD says they will build 8,000 e6s in 2013, and despite already having an official EPA rating here in the US (for the 2012 model year…a segment worst MPGe rating of 62), it does not appear the company is looking to sell any here during the year.

We guess there is always next year.

2013 BYD e6 Specs (Asia)

2013 BYD e6 Specs (Don’t blame us on the light colored, pica font at play…that s all BYD’s doing)i

BYD press release via Samochody Elektryczne

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11 Comments on "BYD: Electric e6 Can Reach Over One Million Kilometers (621,000 Miles) On Original Battery"

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OK, I am looking for the silver lining here. It is really hard to find it among the rest of the cloud but here is my hope/guess/hope…. What if like the 0-60, range, etc, the potential is only “half”. That would still be a HUGE step forward for the LiFePO4. No one ever said the Fisker battery was bad, it simply had bad Karma…… wha wha whaaaa

“…..The e6 Can Get A Full Charge In Has Little Has 40 Mines (@ 100 kW), 20 Hours at 3.3 kW (On Board) ….”

I think Jay has spent too much time in China lately.

3.3 kw on board charger…… Hummmm. China has a 16 amp single phase limitation similar to Europe’s limititation? I thought you could at least have a 32 amp circuit in Britain?

Well, 20 hours isn’t super bad. (There will definitely be no comments about this car “overloading the Grid” anytime soon). And it does make the basic car usable anywhere in the world since they’ve chosen the Least Common Denominator here. Its also great their battery is decent quality if it can do 600,000 miles.

You got me! Truth be told, I started out-sourcing all my articles to China years ago, (=

With such a large battery, there will be no need for every day full charge.

5200lbs is a bit startling, thats what you get when you want a big 48kWh battery… with decent tires you could glide that lead sled for several miles

I don’t believe it.

I have a Chinese Li pack in my e bike. When I bot 3 years ago it it was claimed to be Fe chemistry and would have a shelf life of 10 years and min 500 cycles. In the three years I have had it I have not put 500 cycles on it and the pack is shot. I took the pack apart and all cells are down uniformly so it’s not a bad cell.

So these cheap azz Chinese batteries are not what they are claimed to be.

Did you buy knock-off A123 cells or something else? Not all cells are the same. “Good” LiFePO4 or LiFeYPO4 should have 5000 cycles. If you kicked your cells every day (down to zero charge) maybe you stressed them. However, with care and feeding, they should go longer.

I was good to the pack cuz of hanging around GM-Volt. Never left it at full charge. always drained to the correct level before not using. Never had it at hot temps. (I live in AZ but at higher elevations.

I think they gave me Li pos instead of Fe’s.

The ironic part is, my best price on a new replacement pack is from …..guess who…..China. for 330$ delivered. Not a bad price so I guess I will just prostitute myself to the Chinese again.

MADE IN CHINA just doesn’t float here as “great quality”, period.

BYD’s claims are BFD to me ( Big Freakin’ Deal ) until they show us the money.
Bring it here – let it be driven and tested – THEN I’ll give them credit but not until.

Let us not forget that china can make a good product for cheep, nearly all of our electronics are made in china. They function properly and last a long time, ie the Iphone, i think it all comes down to quality, if they can achive that goal, then and only then it will be a good product, also they really must get the zero to 60 down and make it a contender to the the available products on the market.

Yeah, the Chinese still seem to have an immature attitude toward reliability. And I’m not even talking about the antifreeze in the baby formula. Probably due in part to a ‘Consensus Society’, where its preferable to LIE then ruffle feathers. The Japanese have a similiar problem at Fukushima.

I remember the first electric motors with starting switches in them would stick, and whenever you turned on a chinese machine, you had to physically KICK the motor to get the centrifugal switch to release to prevent the motor from burning out seconds later.

There was a Chinese guy on these blogs saying he had invented an 800 mile range battery and it was good for a million miles. When pressed by several of us, he would provide no docs. So until they change their tune, I’d take any chinese claims worth about 1/2 of what they claim.