I have access to the RC cars by accident and was deeply attracted by their glamour. This is a set of equipment with individual character appearance, high-tech configuration, super running speed, and high degree of simulation. Although it is not the carrier of my soul, it is a way of bailment of my dreams and memories.

1. What RC exactly is?

RC is the abbreviation of Radio Control. (Literally, it means remote Control or Radio Control.) RC covers a pretty wide range, such as RC cars, airplane models, boat models, and some military drones and battle droids. But we need to emphasis that children’s class remote control toys are not RC models.

2.What are the RC models?

RC models in general can be divided into the RC cars, RC airplane model, RC boats, RC robot and etc.

The RC cars, we introduce today, is easier to play, compared to the RC airplane model and RC boats. Because RC cars have no requirement for the airspace and water area, and the requirement for ground and site is relatively low. That is to say, as long as there is available ground, you can play your RC cars.

3. What are the differences between the RC model cars and RC toy cars?

Tens dollar remote control cars in the market is only kind of remote control toys, but not RC model cars. They have obvious differences with hundreds or thousands dollars RC model cars:
1>The running distance. RC model cars, belongs to the remote control, can run at least 100m; but remote control toy cars for children can run maximum about 20 meters.

2>The control modes are quite different. RC model cars is “proportion type manipulation”. What is “proportion of manipulation”? For example, we turn an angle of 15 degrees, and the wheels on the RC cars also rotate an angle of 15 degrees correspondingly; The accelerator trigger on the remote control is pulled 30%, then the power output in the RC cars is also 30%. But the RC toy cars adopt “switch mode”, which means that we cannot do precise instructions, and the steering and speed are only in “0%” or “100%” two states.

3>The mechanical principle and internal structure are also different. The RC model cars is the miniature versions of various real racing cars, so they have the same mechanical principle, suspension system, similar manipulate mode and amazing speed as super racing cars. But the ordinary RC toy cars do not have these characteristics.

4>The RC model cars can be assembled, maintained, refitted to update their configuration, but the ordinary RC toy cars can not be assembled, refitted or maintained in large.

4. What’s the fun for playing the RC model cars?

If you are a newbie, my answer would be that it can reach a starting speed as the a real racing car, and you can work with many actions like climbing, cross-country, drifting, tumbling and snapping.

For professional hobbyists, the biggest pleasure comes from the assembling, refitting, maintaining and studying the RC cars, share tips with teammates and the most, manipulating and conquer on the competitions.

5. How many kinds of power do RC model cars have?

The RC model cars have two main types of power: fuel and electric power. Fuel power RC cars use internal combustion engine as power output, the other use RC car batteries lipo /electric motor as power output. There are mainly 2 fuel power; one is gasoline, but not only gasoline, which is a mixture of gasoline and the 2-stroke gasoline engine oil; another is the synthesis of methanol. RC cars, powered by battery/electric motor, will generally use 7.4v lipo battery or nickel metal hydride battery. If use electric power properly and maintain carefully, it can be recharged and used for a long time. When compared the gasoline and methanol, there will be limit to buy gasoline from the gas station. In contrast, though the methanol mixing fuel can easily access, it would be relatively complex to use integrated methanol cars.

6.The price of RC model cars

The price of RC model car ranges from a few hundreds to thousands dollar. For the newbies who come into this area for the first time, I recommend the price from $350-$500, like the HPI, Horizon Hobby and the many high-end imported brands from US or Europe, which have good quality for entry-level. Some domestic brands also sell some fake high-end foreign brands, and Taiwan also has some high performance brands.

I would not recommend to buy low-price RC cars, because RC cars are high loss products and commonly work in high speed and violent movement. The components quality would not be ensured in low price. At the same time, I will not recommend you to spend 10000dollar or more to play and have fun in the very beginning. The fun of playing RC model cars is in the gradual process. Your skill will be updated according to the accumulation of knowledge and technology.

Source:http://www.genstattu.com/blog/the-funny-of-play-rc-car-games/

TIP #1: KNOW EXACTLY HOW AND WHEN TO CHARGE YOUR BATTERY

Charging is the Key to extend the battery’s lifespan. For getting the best flight time possible, charge your UAV battery right before you’re about to use it. “Freshly” charged batteries usually perform better than ones charged several days beforehand. Besides, when you are not about to fly, charge it only 60% of the way and store it in a safe place instead of fully charge it. And, NEVER OVERCHARGE. If the batteries are charging overly, they may ignite or even explode. It is dangerous and also detrimental to the battery’s lifespan.

TIP #2: DON’T ALLOW YOUR BATTERY TO COMPLETELY DRAIN ITSELF

Each time that you do this, you slowly wear down the lifespan of the battery. It is recommended that you fly your quad copter with no less than 3.5V. Once it dips to 3.5V, stop flying and give the battery a rest, then charge it for use next time.

TIP #3: AVOID THE STRONG WIND

When you fly your quadcopter in strong wind, your motors have to produce more thrust to maintain the flight, which requires more power conducted by batteries. Therefore, it is highly recommended to fly in a good weather or low wind.

TIP #4: CHOOSE A CONSERVATIVE FLIGHT MODE

Nearly all RC drones come with various “Flight Modes” that you can switch by simply putting a button. The aggressive mode increases transmitter sensitivity and consume more electricity. Conversely, flying more conservatively consumes the power more slowly with a lower sensitivity. Try to fly conservatively when you are not racing!

TIP #5: LIGHTENING YOUR EQUIPMENT

Since the battery discharges faster while recording and shooting, you can turn on the camera and even remove the camera (if it is detachable) to slow down the pace of discharging. This may be helpful of prolong the battery’s lifespan.

TIP #6: BUY EXTRA BATTERIES!

The flyers are now purchasing more batteries, for use or for backup, to maintain a long flight time for their drone. Generally, spare batteries can be accessible easily and can be purchased on sites like:
genstattu.com

These tips can make sense in extending the battery’s lifetime, but it is unrealistic to double the flight time. SO, taking good care of the gens ace 3s lipo battery and using it properly.

Source:http://www.genstattu.com/blog/6-ways-to-extend-drone-battery-life/

FPV is more and more popular now among many RC hobbists and there are more and more newbies come into this hobby. Many new beginners write to us about how to begin and what are the most important point when flying FPV. Among all the questions, the best battery for FPV flight is very often asked.

Many Videos are now showing a battery that could be the best LiPo battery for long distance FPV flying. With the aide of FVP goggles, flying FPV is pretty exciting and real than any other RC drones or airplanes because of the goggles to see the real view in the first sight. Certainly, the spetacular speed of FPV is core for enjoying the FPV flight.

Usually the limiting component on an FPV aircraft for flight is the battery. In the past, I have used about 1300mAh, 45C and 3/4S for FPV, however, Tattu is the first UAV LiPo battery released Tattu 75C 1300mAh 4s LiPo Pack Battery, which get a very good popularity among clients. Certainly, Tattu have many batteries, but this time we will take this amazing one to see why it is so attractive.

Tattu 4S 1300 mAh 75C Li-Po Pack Battery
The 4S 14.8V 75c 1300mAh Lipo battery pack is a great choice for many small UAVs which require high discharge rates. This battery packs a ton of power in a compact form factor, giving you the flight time and power your need on your craft.
And the advantages is that Tattu LiPos are packed with vibration-proof & fire-proof material and luxury battery box. Make sure to get your battery in perfect condition. An automatic procedure & Computer system battery cell matching process ensures the batteries stability and quality. Different from the original Gens Ace series, TATTU is specialized for the UAV & UAS market, with their industrial quality (since Gens Ace is based on the Hobby area), their slogan “less is more”, “more” means more flight time, more enjoyment, and more satisfaction , and “less” means less weight, simple design. Tattu always develops their products according to these 2 directions giving you a high quality battery.
Tattu’s Stable automatic stacking technology enables single cell capacities of 1300mAh. This higher capacity than comparable size packs and without memory effect.

Tattu FPV battery provide high quality, reliable power for your FPV Nemesis 240 Mini, Skylark M4-FPV250, Mini Shredder 200, INDY250 PLUS, HOVERSHIP MHQ2(270), ZMR 250, Emax Nighthawk 250, Mini H, QAV250, QAV180/210, Danaus, Vortex 285, Mini H, FLIP FPV FRAME, Emax Nighthawk 250, ZMR 250, HOVERSHIP MHQ2, MOJO 280, etc.

Choose Tattu FPV battery, you will be surprised.More power, more flight time, and less weight.

Source: http://www.genstattu.com/blog/how-to-choose-the-best-fpv-lipo-battery/

The full name of the battery used in the aerial photography is called Li-polymer battery (also known as high molecule lithium battery) and Li-battery for short. Li-polymer battery is a new-type battery and has the obvious advantage of high density, small size, ultrathin, light weight, high safety, low cost and so forth.

These years, the aerial photography, using UAVs,the UAV Battery comes to the public. Its irregular shooting perspectives, convenient operations and simple structure have gain the applause countlessly from video creation organizations, and even this technology has stepped into the ordinary families.

At present, the mainstream of UAVs aerial photography are multi-rotor, helicopter and fixed-wing. According to their structure, the fixed-wing can fly for long time, but the fixed-wing demand highly skill of taking off and landing on. It could only be used in the mapping and other fields which do not require high image quality, since it cannot hover in the air. However, although the multi-rotor and helicopter have comparatively short flight time, as the most types of aircraft in the video creation, they can take off and land on the complex terrain, fly stably, hover, strong ability of wind resistance, be easy to operate. These two types of aircraft mainly use the battery to provide power, and helicopter can use the gasoline-drive engine as well. But people reduce the use frequency of gasoline-driven engine due to the mechanical vibrate and the more flight risk. Naturally, the usage of battery spreads widely in the UAVs photography. A team prepares at least tens of any sort of batteries. The batteries provide power tirelessly for the motor, electric regulator, flight control, OSD, image transmission, receiver, remoter, controller and other electric parts of the aircraft. In order to fly well and safe and shoot successfully, it is reasonable to know the parametric of battery, usage, maintenance, charge and discharge and so forth. And now, let us know more about the battery, the crucial part of aerial photography.

From its shape, Li-polymer battery has the characterization of ultrathin, which could meet the need of any product, produced into any shape and any capacity. The external package is made of aluminum plastic. Being different from the metal case of liquid li-battery, the internal quality problem can be presented in time from the distortion of the package, such as bulging.

Let us move to the basic parametric of battery. Take 22.2V 10000mah lipo battery as an example; six Li-cells, which has the rated voltage of 3.7V, capacity of 10000mah, are put in series to form the battery. In other words, the 6S1P and 6S2P battery is formed of 12 5000mah lipo battery in series and in parallel. To be more specific, 6S1P is more safe than the 6S2P, because the 1P has more simple structure than 2P and more expensive.

Among the Li-battery of model, the rated voltage of single cell is 3.7V, which is gained from the average working voltage. The actual voltage of single Li-cell is 2.75-4.2V. The capacity labelled on the Li-battery is the voltage which discharges from 4.2V to 2.75V. Li-battery should be used in the range from 2.75V to 4.2V. If the voltage is below 2.75V, the battery is recognized as over-discharged, and the chemical liquid inside will crystallize. The crystallization may puncture the inside structure layer and cause short circuit, even change the voltage of Li-battery to zero. During charging, it is deemed as over-charged if the voltage of single cell is above 4.2V. The inside chemical reaction is too much fierce, and the Li-battery would bulge and then burn if charge continuously. Therefore, it is a must to use the formal chargers which conforms with the safety standard. Besides, self-refit is prohibited since this may cause serious consequence.

Cautions: Do not use the single cell of aerial photography power battery to 2.75V, because this battery cannot provide the effective battery to aircraft. To guarantee the safe flight, the single warning voltage can be set as 3.6V. If reaching or being close to this voltage, the pilot must return or land to avoid the explosion as possible due to the insufficiency of voltage.

Till now, there are numerous brands and sorts of Li-battery for model, we should match and find the battery according to the need of power, so that the electrical elements can run successfully. Please do not buy the unqualified and cheap battery, do not buy the cell and make the battery on your own, and do not refit the battery. If the battery bulges, breaks, cannot be fully charged and any other problems, please stop using at once. Although the 2200mah lipo battery is the consumable, it provides the power for the flight. It should take time to attach importance to it, know more about it, take good care of it, and then the UAV battery can provide and guarantee our every flight task better and safer.

Source: http://www.genstattu.com/blog/the-lipo-battery-is-heart-of-uav/

Keywords:
Description: Though accident caused by lipo battery itself is extremely low,but accident is happen occasionally,What is the cause of the most accidents of lipo battery?Lipo battery overcharge is the enemy of the rechargeable battery.

Accident caused by Lipo battery itself is extremely low. The 26th International Battery Seminar & Exhibit, held in March 2009 in Florida , Sandia National Laboratories announced the probability of accidents caused by the battery itself in less than 1ppm. Engaged in battery safety measures U.S. TIAX LLC said the probability of accidents in between 0.2 ~ 0.5ppm, exceeding the quality administrative limit “Six Sigma”.

Probability of 1ppm is very low and it can be called a rare phenomenon. The probability of dying by lightning in the United States is about 1ppm within a year. In Japan probability of getting lottery jackpot is 0.1ppm. That is to say probability of accidents caused by their own defects of lipo battery probability is slightly higher than a jackpot, the same as death by lightning. This is because multiple safety measures have been taken for the 2200mah lipo battery.

However, the probability of accidents of lipo battery is much higher than the number of ppm level. This is because most accidents are not caused by a defect of the battery itself, but external factors. In the aforementioned Institute, SNL represented the vast majority of the cause of the accident is extrusion, heating, overcharge and so on.

In fact, few people know these situations. Until now, the main reason for many accidents also views as the flaws of cell itself. Japan Battery Industry Association recently proposed test method to test whether the metal sheet into the battery would threat security of battery. The specific method is to insert metal sheet in the element of battery after winding it. We investigated whether heat, smoke, fire and so on would happen through the loading pressure to force the metal sheet and caused internal short circuit. This is because there is an allegation that “in the manufacturing process lipo battery mixed metal sheet will become an internal short circuit fuse, eventually lead to the accident.”

Most accidents from improper use of the lipo battery

Most manufacturers have implemented essentially same test. The representative is Penetrating with nail after charging called penetrating battery with nail .On this basis, if the battery mixed with metal and other impurities, causing weak internal short-circuit, it should be able to be filtered through aging tests. That means the possibility of defective batteries as commodities into the market is very low. It is doubtful that the test proposed by Test Battery Industry is in fact repeating the same test.

Of course, there is no internal short circuit even when manufactured but during the process of using it the battery is also entirely possible getting internal short circuit. We assume that during the time of charging the cell electrode generate dendritic metal, causing an internal short circuit. The main reason for this failure is twofold.

Now, during the process of manufacturing, measures have been taken to completely remove moisture. Such as a drying for a variety of materials. The most important step is to dry the negative carbon which is easily to absorb water. Let the electrolyte through dehydration column to remove trace moisture. And the manufacturing need to be set at a dew point of -60 to -40 in drying chamber. For insurance purposes, after winding elements of battery. It will be dried again in a vacuum dryer.

Taking comprehensive countermeasures means that even the slightest error in the process of manufacturing can cause the battery itself as the major cause of accidents. Therefore, lipo battery manufacturers must bear in mind, it does not allow a trace of slack in the process of battery manufacturing.

However, no matter what battery manufacturers do carefully in the manufacturing process to increase security, users do not use it correctly, accidents will not be prevented. Like SNL and TIAX pointed out, compared with battery itself defect, the possibility of external factors causing the accident is much greater.

lipo battery overcharge is the enemy of the rechargeable battery

What is the correct way to use of batteries? The most important is to avoid overcharging. Trace overcharge may also cause smoke or fire and other accidents. For example, FUJITSU TECHNO RESEARCH has done experiments conducted on batteries under 4.25V and 4.30V voltage. charge the battery and do “squeeze test” and “wearing nail test”. The results, 4.25V charging lipo battery is no problems while the 4.30V charging 3s 11.1v lipo battery appeared smoke and fire. The difference between a mere 50mV, there is likely to lead to a major accident.

Gensace &Tattu battery Official Online Shop: http://www.genstattu.com