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Best Battery Manufacturer in China

The article cited: Best Battery Manufacturer in China

The global battery market is growing constantly, and competition between manufacturers is expected to intensify with the introduction of new and advanced technologies and higher investments in the market.

Out of all these companies, we will explore the top 5 battery manufacturers in China.

CALB

With headquarters in Luoyang, China and more than 2,000 employees worldwide, CALB is a large, nationally owned enterprise. It provides products for renewable energy storage, transportation, wind and photovoltaic energy storage, telecommunication, mining equipment, and rail transportation markets. Its products include lithium-ion batteries featuring large capacity, long cycle life, high power density, low self-discharge rate, and low temperature performance.

BYD

BYD was established in 1995, and its headquarters are in Shenzhen, China. The main products are lithium iron phosphate power batteries and lithium-ion polymer batteries. BYD announced in 2018 its plan to quadruple its manufacturing capacity before 2020. The clients of BYD include top consumer electronics brands such as Samsung, LG, Huawei, Lenovo, ZTE, and TCL.

Shenzhen BAK Technology

Founded in 2001, Shenzhen BAK Technology Co. Ltd is mostly known for its lithium-ion polymer  and LiFePo4 batteries. It manufactures and exports various types of rechargeable batteries. Around 75% of their products are exported globally while the rest of the 25% is sold within China. The company has subsidiaries in Europe and India and has set up offices in the United States to support an extensive domestic market.

LARGE

Dongguan LARGE Electronics Co. Ltd. was established in 2002. It focuses on lithium-ion-battery module research, development, production, and sales. The company’s main products are power supplies, power-storage power supply, industrial power supply and other consumer power supplies. It has grown to be a leading lithium-ion battery provider with customizations.

Grepow

Shenzhen Grepow Battery Co., Ltd. was founded in 1998. It is an advanced technology company that specializes in the research and production of NIMH, Li-PO batteries, and LiFePO4 batteries and development of power management systems. After decades of development, Grepow is now one of the largest manufacturers of high C-rate and high capacity batteries in China. Its sales network covers all areas of China, most areas of Asia, Europe, America, Austria, and some areas of Africa. We have established offices in Xinjiang, Germany, and U.S.A. to provide better service to customers for delivery efficiency and after-sales service.

The battery manufacturers in this article are in no particular order. In fact, there are many other battery manufacturers in China who contribute to the further development and research of batteries.

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Top Drone Parts Companies

Article Source: Top drone parts companies

1. Drone Electronic Speed Controller (ESC)

ESC stands for Electronic Speed Controller, and they control the speed of the motors in drone. The ESC receives throttle signals from the flight controller, and drives the brushless motor at the desired speed.

There is a working current on the label of ESC, such as 20A, 30A, etc. This is the maximum continuous working current of ESC, and if it continues to exceed the current, the ESC will burn out. When the multirotor drone is moving at high speed or hovering in a windy environment, the working current will be greatly increased. Therefore, we should try to select ESC with larger working current than normal’s when the price and structure space permitted.

Also, ESC has internal resistance, the heat dissipation performance should be paid highly attention to when choosing a suitable ESC.

Using good quality ESC will for sure bring you with a reliable and smooth flight experience.

* ESC company Recommend: HOBBYWING

 

HOBBYWING is dedicated to developing and manufacturing different brushless power systems (motors & ESC) and relevant electronic devices for RC cars, boats and aircraft for all players.

 

2. Drone Motors

The motor is an essential part of the power system of UAV.

The continuous maturity of brushless motor technology is also an important technical basis for UAV industry. Compared with brush motor, brushless motor has the advantages of high efficiency and lifespan.

A motor is indicated by 4 numbers like 2207 or others. It 27 shows the diameter and (07)shows the height of the rotor in millimetre (mm). The bigger the motor gets, the higher the thrust it can generate.

 

KV represents the speed at which the motor rotates for every volt applied to the motor. The value of KV is multiplied by the voltage equal to the idle speed of the motor (revolutions per minute).

* Motor company Recommend: T-MOTOR

 

T-motor is a brand which specialize in UAV’s propulsion system, with full coverage-product line of components from light weight FPV racing motor to heavy lift brushless motor, carbon fiber propeller ESC, the whole propulsion system, which also set the standard in the UAV industry.

 

3. Drone Battery

 

The battery is also one key part of the drone, the main drone power battery type is Lithium Polymer battery (LiPo Battery) on the market, compared with other battery type, lithium polymer battery has higher energy density, higher discharge Rate and better performance. lithium polymer batteries are made of several cells in series or parallel, normally, every single cells has a standard full voltage of 4.2V and a rated voltage of 3.7V.

Intelligent battery is specially designed for UAV drone. What’s the difference? Smart battery with a built-in Battery Management System(BMS) which could have functions as below: balance the charging protection, charging temperature protection, Over charge/discharge protection, short circuit protection, SOC Indicator, battery daily record, charging temperature protection, over-current protection, etc...

* Drone Battery Company Recommend: GREPOW

Grepow is the Leading Global Professional Customize Battery Manufacturer, HQ founded in 1998 in China and now has two branch both in USA (www.genstattu.com) and EU(www.gensace.de)

Specialized in the research and production of NIMH/LIPO/LiFePO4. Grepow possesses the tech from cell design, structural design, BMS design to pack design.

 

4. Charger

Lithium Polymer battery (LiPo Battery) is usually charged by the charger with balance function, which will automatically adjust the charging voltage of each battery cell to get maximum consistency.

This is also the safest and most common used charging way on the market.

* Charger company recommend: Sky RC

 

Sky RC, established in 2008, specializing in chargers and power supplies, providing the highest standards in both product expertise and customer service. They are well known for iMAX B6AC charger which is the most common charger used in the RC hobby industry at the beginning. Of course, for drone battery charger, EVPEAK is also worth knowing, they focus on dedicated charger for uav, intelligent balance charger and so on.

Need more information, please email us: info@grepow.com

Drone Delivery: The Future Of Last Mile Delivery

Work cited: Grepow news — Drone Delivery

There have been some exciting announcements in the world of drone deliveries lately. The announcements come more from the FAA than from the tech companies, as there have finally been drone deliveries in the United States.

Is this the beginning of crowded skies delivering our food, drone parts and new socks, or is this just a fad? You and I know drone deliveries can be a sustainable technology, and obviously companies like Amazon, Google and USPS think the same.

The pros and cons of drone delivery are worth our attention.

What is Drone Delivery?

Delivery drones are unmanned aerial vehicles (UAVs) that can deliver lightweight packages. Drones generally use 4-8 propellers and rechargeable batteries to provide thrust and attach packages underneath the body of the drone.

Delivery drones are operated autonomously or remotely with operators potentially overseeing multiple drones at once. Delivery drones are used for medical goods, food, retail, or even deliveries that can be difficult to achieve through more traditional vehicle-based services.

Possible benefits of drone delivery

The purpose of a delivery drone is to provide services for delivering objects or commodities rapidly and in hard-to-reach or out-of-the-way locations. They can deliver products quickly to virtually any location.

Drone delivery companies can save money on shipping costs, which would in turn reduce costs for consumers.  Furthermore, a drone would not add to roadway congestion due to less vehicle miles traveled (VMT), and there would be improved safety for the driver of the vehicle.

Consumers would also receive their packages far more quickly and reliably, which would build consumer trust and encourage repeat purchasing.

Possible Limitations of drone delivery:

Drone Battery Life

One of the limiting factors for drone delivery has been battery life. High-quality drones usually can stay in the air for about 30 minutes, and the longer a drone has to recharge, the less packages a fleet can deliver.

Expenses

The cost of adding delivery drones to a company’s services requires a significant investment in the infrastructure of the organization. That’s why there are only a few large businesses that consider using this technology at present. The average price of a drone that can accurately make a delivery can be up to $500.

Privacy risk

Streaming videos to headquarters would allow supervisors to know if a delivery was successfully completed. This technology could help to lessen the risk of theft in the future as well, but there are privacy concerns as drones would likely use GPS and cameras to find homes and deliver packages.

Uncertainty

Irregular and/or unpredictable events, such as weather, wildlife, or vandalism/sabotage, could bring down a drone during a delivery, which could potentially become a safety hazard for those on the ground and/or adversely impact the reliability of drones.

Others

Limited payloads prevent heavier or larger items from being delivered via drone, and designated drop-off locations may become difficult to determine in dense, urban areas.

These are all factors that need to be considered when operating drones for delivery.

Conclusion

It’s just a matter of time until drones have the potential to eliminate the challenges people face every day. Drone delivery is inevitable: when regulations loosen up and the infrastructure is in place, we should expect to see drone deliveries for a variety of purposes. Drones could enable a step change in the availability of everyday items.

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1. What are the Possibilities of UAV Drones?

More information please email us: info@grepow.com

Tattu New 6S 30C Drone Battery

Article cited: Tattu 6S 30C Drone Battery

Tattu brand 30C drone battery series is new products of Grepow, has stable automatic stacking technology, high capacity than comparable size pack and no memory effect. And it is a nice compact little battery, with excellent build and assembly quality. 30C 6S UAV drone battery series designed for multicopter, low IR value of these batteries also provides stable voltage until the end of your mission.

Tattu 30C 6S drone battery series features: slower voltage drop, more robust power, higher performance and longer flight time.

Tattu 30C 6S UAV Drone Battery

Tattu 6S 30C UAV Drone Battery Lists:

Tattu 6S 30C UAV batteries list
Properties Parameters
Chemistry LiPo Battery (Lithium Polymer Battery)
Capacity(mAh) 10000, 12000, 16000, 22000
Configuration 6S / 22.2V / 6 cells
Discharge Rate 30C
Max Burst Discharge Rate 60C
Net Weight(±20g) 10000mAh: 1357g

 

12000mAh: 1532g

16000mAh: 1974g

22000mAh: 2460g

Dimensions (L x W x H) 10000mAh: 175mm x 65mm x 58mm

 

12000mAh: 190mm x 71mm x 54mm

16000mAh: 190mm x 76mm x 65mm

22000mAh: 206mm x 91mm x 61mm

Tattu 6S 30C Drone Battery Video:

About Tattu Brand

Grepow self-owned brands “格氏ACE”, “GENS ACE” and “TATTU” are renowned home and abroad. For Tattu Brand, it is more focused on Drones / Multirotors / UAV battery pack and designed with high energy density and high discharge rate cells. It has highly reputation in the market with its stable performance. We are committed to supply the safe, stable as well as long cycle life battery for UAV.

You may also like:

1) Why Choose High Voltage Batteries

2) Tattu 6S High Voltage UAV Drone Battery

3) Tattu Plus 12S Smart Drone Battery List

4) Tattu Plus 6S Smart LiPo Battery for Drone

Learn more UAV Drone Batteries’ informantion? please check HERE

Not Find You Need? Try Our Customized Service; Professional Customized of Drone Batteries and Battery Solutions.

Any questions please let us know: info@grepow.com

Using Spray Drones To Fight COVID-19

COVID-19, otherwise known as the Coronavirus or 2019-nCov, has rapidly expanded around the globe, and health officials and researchers are working hard to understand and prevent the pandemic from spreading further. In order to slow the spread of the infection, many countries have taken tough containment measures, such as instilling stay-at-home or shelter-in-place orders.

Some have even used UAVs to combat the pandemic: Spain, for instance, was the first European country to implement an agricultural drone to spray disinfectant in large, public areas.  More recently, French company Flying Eye also used a DJI drone to do the same especially in urban spaces.

In this article, we will cover what operating personnel should pay attention to when they disinfect public areas around them.

Spray Drones to Fight COVID-19

Image: REUTERS/Jose Luis Saavedra

For Operating Personnel

WHO (World Health Organization) says that COVID-19 can spread from people who already have the virus, and it “spreads primarily from person to person through small droplets from the nose or mouth, which are expelled when a person with COVID-19 coughs, sneezes, or speaks.”  To minimize contact with others, personnel should keep at least 1 meter, or 3 feet, from each other.

While disinfecting, avoid smoking, eating, or drinking of any kind.

Personnel should protect themselves by wearing disposable clothing, such as caps and gloves.  Overalls, protective goggles, work shoes, rubber or waterproof boots are recommended as well.

Personnel should wear masks while on duty. WHO also says that wearing a mask “can limit the spread of certain respiratory viral diseases, including COVID-19.” If the mask is deformed, wet or dirty in any way, it should be replaced with another one.

The Flight Area

Permission from local governmental departments should be obtained in advance so as not to violate the regulations in place.

Since disinfectants have a certain corrosiveness, clear the space that will be disinfected and move all people and animals to avoid accidents.  Food and clothing that is not being worn should be put away in advance as well.

To minimize repeated spraying and leakage, plan out the flight area and path in advance.

During the flight, the pilot should always pay attention to any obstacles, keep the flight interval with obstacles at all times, and ensure the safety of flight equipment and property.

Maintenance

After spraying, it is necessary to clean the aircraft and the spraying system because the residual disinfectant can corrode the aircraft, metal structure, water pumps, sprinkler heads, and pipelines, which will affect the service life. Moreover, if the water pump or sprinkler head is blocked, the spray flow will not work quite as efficiently the next time it is used.

About the maintenance of drone batteries, ensure that the voltage difference is less than 0.2V, and charge the battery with a small current to balance the voltage difference. Do not discharge the battery if the voltage is abnormal. The battery should maintain about 3.85V when put into storage, and keep a regular charge-discharge maintenance every month or at least every three months.

Works Cited

https://blog.grepow.com/using-spray-drones-to-fight-covid-19/

Why Refer High Voltage Batteries?

Drones are being used more and more widely in all our lives, so the batteries that power these devices are increasingly advancing and being pushed to their limits. One of the biggest challenges to these batteries is endurance; more and more users need the power to last longer.

 

One such example is with an agricultural drone. Let’s say that the drone carries 10kg of pesticide with two ordinary Lithium Polymer (LiPo) batteries that have a capacity of 16000mAh in 6S (22.2V). This drone will only be able to last about ten minutes with these batteries, which farmers generally find to be too short. However, the use of high-voltage batteries with the same capacity and C rating can increase this flight time by 15-25%, which will increase the efficiency and operations.

 

We will explore why high-voltage batteries can improve flight duration and also look at the advantages of such batteries.

 

Tattu high voltage drone battery

 

1. Weight

Without an increase in weight, high-voltage batteries provide better performance.  This is key for UAVs since each drone has a specific payload that it cannot go over.

2. Higher Voltage

If we compare ordinary LiPo batteries to that of those with high voltage, we see a subtle change in voltage. Through this little voltage increase, users are able to get increased performance in their products.

Ordinary LiPo Batteries

The nominal voltage for a single LiPo cell is 3.7V. A 6S battery pack has a nominal voltage of 22.2V, and a 12S has 44.4V.

A single LiPo cell that is fully charged has 4.2V while a 6S has 25.2V and a 12S 50.4V.

High-Voltage LiPo Batteries

The nominal voltage of a single high-voltage LiPo cell is 3.8V, a 6S pack has 22.8V, and a 12S has 45.6V.

A single LiPo cell that is fully charged has 4.35V while a 6S has 26.1V and a 12S 52.2V.

3. Better Cycle Life

Battery cycle life

In the chart above, we can follow the discharge rate of several batteries. The high-voltage 4.4V batteries (shown in green) demonstrate a higher discharge rate and discharge capacity.

 

Grepow HV battery discharge curve

 

The above chart shows that, under the same discharge currents and cycles, the 4.4V (in blue) has a longer cycle life than the other batteries at 4.35V or 4.2V.

4. Increased Efficiency

Similar to the example offered at the beginning, we put two drones together for a simple test.  Both drones carried 15kg of water with two batteries of 25C and 22000mAh in 6S.

The drone with the non-high-voltage batteries (22.2V) lasted 17 minutes and 50 seconds.

The drone with the high-voltage batteries (22.8V) lasted longer for 22 minutes and 10 seconds, lasting 4 minutes longer than the ordinary batteries.

Conclusion

According to the above data, the advantages of high-voltage UAV batteries are obvious.

Grepow products high-quality and high-voltage batteries under its different brands, GensAce and Tattu.  We are able to custom, high-voltage cells and offer a one-stop service for your battery designs and solutions.

 

More details can be found at our website at www.grepow.com or https://www.grepow.com/page/lipo-battery.html.  We can be reached at info@grepow.com for more information.

Source: https://blog.grepow.com/high-voltage-batteries/

Grepow Entered the Industrial Field: Smarter and Safer

How to Determine Battery Performance?

Advances in battery technology have contributed greatly to the changing technological environment around us. Today, competition between different power battery technologies is at the forefront of various applications.

But at the same time, the safety of the battery has also spurred everyone’s sensitive nerves. In the first half of this year, many new energy vehicles such as Tesla, Weilai, and BYD have had many spontaneous combustion incidents.

The above shows that the performance evaluation of the battery is a comprehensive indicator system, and the most important factor in this indicator system is not the energy density, but the safety.

DENSITY or SAFETY?

According to some relevant research data, there are two main reasons for the fire alarm of the power battery.

  1. The proportion of the internal short circuit causing the fire accident is about 35%.

  2. The proportion of the battery fire caused by the mechanical external force such as collision is about 18 %16% of fire accidents are related to the charging process, especially at the end of charging and overcharging, which is more likely to cause safety problems.

With the increase of system energy density, the focus on the safety of power batteries is no longer limited to the level of the unit. “In the test phase, the safety issues that everyone cares about have transitioned from the single level to the multi-level system evaluation stage. The security at the physical level is not an absolute security concept, but a relatively safe concept.”

Advanced Power Batteries from Grepow

Grepow has advanced manufacture facilities, has several national patents, with a total of 4 factories, covering an area of 7.6 hectares, roughly 3000 employees300 of them in our R&D department, research and tests of different materials and new products are carried out, including over 30 different types of reliability and safety tests.

Grepow Manufacture

Our quality management system runs standards like ISO9001, ISO14001, OHSAS18001 and IATF16949 to ensure products quality, stability and reliability. Also, scientific operation standards are set up and executed during our process of raw material purchase, inspection, production, outgoing quality control, and warehouse management for excellent efficiency. International certifications, such as GB, CE, UN, and UL could be provided for related products.

Safety control is a systematic project. Grepow follows the safety requirements from materials, batteries, BMS, and systems. It does not rely too much on a certain level of security protection. It is safe for every level of requirements. Whether it is the production of batteries or PACK, the quality control level in the manufacturing process is particularly important, which is also a direct manifestation of the core competitiveness of batteries.

Features of Grepow's Lithium Iron Phosphate Battery

  1. High durability, cycle life is about 1500 times, up to 2000 times.
  2. Safe to use, Grepow LiFePO4 battery completely solves the safety hazard problem of lithium cobaltate and lithium manganate. Lithium cobaltate and lithium manganate will explode under strong collision and pose a threat to the user’s life safety. Grepow’s lithium iron phosphate battery undergoes rigorous safety testing and will not explode even in the harshest environments.
  3. It can be charged quickly with high current 2C. Under the special charger, the battery can be fully charged within 1.5 minutes of 1.5C charging.
  4. High temperature resistance, working temperature up to 65 °C.
  5. Excellent low temperature performance, wide operating temperature range (-40 ° C to 55 ° C); discharge at 0.5 °C at -40 ° C, discharge capacity exceeds 60% of initial capacity; discharge at 0.3 ° C at -35 ° C, discharge The capacity exceeds 70% of the initial capacity; it can be charged at -20 °C;
  6. Large capacity.
  7. No memory effect.
  8. Small size and lightweight.

Applications of Grepow Batteries:

As a supplier of high-end power system solutions, Grepow Battery has steadily increased its market competitiveness in polymer lithium batteries, nickel-hydrogen batteries, shaped batteries, battery packs, etc. Battery products are widely used in industrial backup power, military electronic equipment, and civilian use. Electronic equipment and special battery application customization. Has owned international brands Tattu, Gens Ace and the “格氏Ace” brand.

Grepow Battery Apply in Different Fields

  • Smart Wear: smartwatches, smart wristbands, wireless headsets, and consumer products make it easy to customize the ideal battery for your customers.
  • In the field of drone batteries, Grepow is definitely the leader in the industry. The UAV batteries produced can be widely used in security drones, mapping drones, agricultural plant protection drones, fire drones, military UAVs, entertainment drones, formation show drones, racing race drones, FPVs, aerial drones, etc., the types of drone batteries are versatile and fully functional.
  • Remote Control model: RC, helicopter, top model aircraft model.
  • Power Tools: Grepow’s decades of battery research and development experience, there is no pressure in the field of power tool batteries. Whether it is civilian or military or commercial power tools.
  • Start-up Power: It can easily start large engines and is widely used in automobiles, boats, ATVs or other power batteries that require high-power discharge characteristics, and can be used as emergency power or start-up power.
  • Portable Power: Any portable power source that needs to be used in any industry can be developed accordingly. For example: energy storage equipment for solar and wind power generation; UPS and emergency lights, warning lights and miner’s lamps; small medical equipment and portable instruments.

Therefore, regarding the safety of power batteries, we should consider the following levels:

  1. The power battery can be used safely under different conditions of use and harsh environment.
  2. Whether the power battery is controllable when it has a safety hazard.
  3. Whether the power battery is out of control in the event of an accident.

Source: Grepow Blog