The different between import battery and domestic battery

 
Recently, due to a series of fire accident which caused by self balancing scooter, it seems that Amazon has begun to take actions: The company not only requires manufacturers to provide safety certificate, but remove some products off the shelf.
Battery explosion to Electric scooter, it depends on battery recipe which determines the safety of battery . Compare domestic battery to import battery , import batteries,  in the instant of the explosion, the temperature rises less than a thousand degrees while domestic battery rises to thousands of  in the unit time, the difference is significant. please notice the following photo about The difference between import battery( Samsung battery cells) and normal battery.

KOOWHEEL Hoverboard, leading the personal transport industry in a healthy direction

Since listing on the market, the balance scooter is welcomed by the global peoples, also sales are climbing.In November ，it is said that KOOWHEEL’s electric scooter manufacturing capacity will be 20,000~30,000pcs with two factories in Shenzhen, that KOWHEEL why is it so hot ? That is Innovation, Quality, Certification!

KOOWHEEL balanced car as an industry leader, but also in terms of product quality and work under the foot. 

Now, let us go into KOOWHEEL self balancingscooter's full production process, from various aspects to know how a good quality mobility scooters was made.The industry's first "three real" product.

True innovation breakthrough

Unique aesthetic + technical knowledge, arch-shaped body of art, a symbol of wisdom and inspiration to shape, the perfect curve, the introduction of a classic sports car, streamlined design, dynamic body full of strength, near-perfect body design, like a Ferrari-like impeccable hourglass design philosophy , supporting world-class highlight the taste of dignity.

True quality no complaints

Ingenuity quality, large to the frame, small bearings, every detail almost harsh. Because we believe the process should eliminate distractions, eliminate blind spots, responsible for every detail. We will do everything we can do together on the car perfect.

Really smooth clearance certification

KOOWHEEL balance vehicle complies with the applicable safety standards, with a battery charger as well as certification UN38.3 and UL1642 certification UL6095-1, as well as CE, FCC, RoHs, UL certification, so you smooth clearance. For more information, please visit http://www.koowheel.com.

How to identify the quality electric banlance charger ?

With the development of modern science and technology, recent years , a tool for riding instead of walk was very popular by the people, that was Self balance scooter. Because it can be able to bring happiness and convenience to human life, but there are several explosion events of it in USA and UK recently. However, there are several explosion events of it in USA and UK recently.

“Koowheel” is a famous brand of balance scooter China. As the biggest supplier of best quality and output in China, now we offer you some tips when you buy electric scooter. Firstly, charger is one of important element, but how to identify the quality charger? There are some main point you should be considered.

1. Look at the appearance ,charger manufacturer of Koowheel, it was the private mode(That was his own mold ). Others are generally public mold (namely, anyone can use ).
2. The main power supply IC, charger manufacturer of Koowheel use imported Taiwan original chips , the other is ordinary chips, Compared to ordinary domestic chip will be worse in all aspects), the other is usually made chips.
3. AC seat , charger manufacturer of Koowheel all passed the CCC, UL, VDE , etc., other non- safety regulations, non-standard products.
4. Electrolytic capacitors, charger manufacturer of Koowheel adopt original imported , long lasting(can use 8000h), while the domestic, you can only use up to 3000h.Besides, electrolytic capacitors is smaller than ours.

To get more information, please visit “Koowheel “ official website: www.koowheel.com.

Battery explosion of Self Balancing Scooter

Battery explosion of Self Balancing Scooter, a battery itself recipe, formula determines the safety of battery materials. In contrast domestic battery and battery imports, imports of batteries, instantly in the explosion, the temperature is only less than a thousand degrees, and can rise to thousands of domestic battery in the unit time, the difference is significant.

Another argument is the rigor, imported batteries standard is bound to 5C 5C even better, we certainly have to 3C domestic standard to verify. For self balancing electric scooter this large currents required battery, if the rate is insufficient, under conditions that will produce high current severe heat, if the heat rises too quickly, while PACK internal process did not do, cause a short circuit between the batteries, that there will be problems.
So many customers ask battery must ask is not 5C, is not enough to 5C? This is indeed very critical
Then there is a possibility that most people will ignore the problem, and that is consistency. Multi-cell multi-string and consistency requirements are very strict, what is consistent, that is simply require that 20 batteries (Series 2 and 10) together with the charge and discharge together. If consistency is not good, it must be high voltage sinking batteries easy touch overcharge protection
It is generally easier to have an accident while charging. Charge Where an accident? I think that is the consistency.

Simply make a graph, the situation on the left is OK, and the right is dangerous, if you do the battery factory PACK more responsible, he may have a protective plate to conduct the inspection, relatively speaking, by the issue of consistency broke out on a bit better. Because our cells are 10 strings, single highest voltage batteries is 4.2V, 10 string is 42V, and if there is an imbalance in the battery charging time, a high one low, low if 3V, that high would charge to 5.4V, and we think is not the case. But if it happens to do PACK irresponsible manufacturers, protect the plate is not tested, and is responsible for pipe 5.4V batteries Fengyun protection has failed, it became inevitable that the explosion.
 So, no matter you or your friends would like to buy electric scooter, must be consider the safety factor, it is suggested that choose high reputation’s self balance scooter supplier. It is said that Most of consumer would choose “Koowheel” , which is the biggest supplier of best quality and output in Shenzhen,China. Koowheel choose the best quality Samsung batteries also the raw materials  comply with national safety production standards.
 For more information please visit Koowheel Self Balancing Scooter official website: www.koowheel.com.

Electric motor supplier of Koowheel