Why won t my RC helicopter charge at home?

The internal reasons why the battery cannot be charged are:

1. Zero-voltage battery or zero-voltage battery in combination battery. The zero voltage of the battery is either a substandard product itself, and the corresponding nominal capacity and voltage value are not reached when leaving the factory, or it is at the end of life, due to long-term use, the capacity is exhausted, and the voltage drop is zero.

Considering that the lithium battery has been shelved for a long time, such as more than one year, it may also be discharged in the form of self-discharge so that the voltage is zero, and the current lithium battery protection scheme is designed to require that the battery can be charged when the voltage is zero. Therefore, there are two differences between the zero voltage of the battery: one is that it can be charged and continued to be used, and the other is that it has no use value at all; In other words, the former capacity loss is reversible, while the latter is irreversible.

If a non-charging zero-voltage battery is unfortunately designed into a lithium battery pack, it is possible to conduct a zero-voltage signal into the battery pack through a protection chip, thereby shutting down the MOSFET and making the battery pack unable to charge.

2. The battery pack is connected incorrectly. This situation is less likely, because the rechargeable battery or battery pack is generally required to be fully inspected when leaving the factory, unless a batch of batteries is not fully inspected when it leaves the factory, and the battery pack that is connected to the wrong is not inspected. Of course, this is not the case for informal manufacturers or individual assemblies, and connection errors cannot be completely eliminated.

Relatively speaking, the full inspection rate of nickel-metal hydride battery packs is lower, and the probability of this error may be a little greater.

3. The internal electronic components and protection circuits are abnormal. This situation is probably the battery after a long time, the aging and falling off of electronic components will lead to abnormal battery charging, especially the electronic components integrated into the protection circuit will directly affect the protection function of the circuit after the above situation occurs, so that the charging process can not be correctly guided.

The external causes of charging behavior that lead to the failure to charge are:

1. The charger and the battery are not matched, especially the difference in the design of the charging current between the charger and the lithium battery, which will lead to excessive instantaneous current during charging, and the lithium battery will be protected by overcurrent to suspend the charging. To solve this kind of incompatibility, especially pay attention not to mix nickel-metal hydride chargers with lithium battery chargers, and some universal chargers should also try not to use "universal".

2. The charging equipment is faulty, and there is no output voltage. In this case, you only need to put the battery on another charger of the same model to charge it.

3. Unsuitable charging environment, charger and rechargeable battery have their own working environment, and if any of the two conditions are crossed, whether it is high or low temperature, charging will be impossible.

I think you can rule them out one by one, if you are sure that the battery is good in the plane, then the problem may be on the charger, you can find a small bulb (household flashlights are available), and then find two small wires, respectively, contact the + and - poles of the charger interface, and then connect the bulb to judge whether the charger has electricity, of course, this is always a very primitive way, hehe, when I was a child, I often used to play video games, if there is a professional instrument to measure it, it is better, If it doesn't work, then disassemble the charger without power (to ensure safety) to see if there is a broken wire, or a short circuit, or please repair the electrical appliance to take a look! Hope it helps!

Hello, happy to answer your questions.

Hello, there are three situations when the remote control aircraft cannot be charged, 1The charger is broken, Liang Shenkai can plug in the plug, find a multimeter, hit the DC electric rubber pressure 20 volt gear test, a meter pen connected to the charging head in the inner test hole, one connected to the outside, if there is electricity, the charger is good.

2.That is, the cable from the aircraft charging port to the battery is desoldered, which may be one end of the charging head, or one end of the battery (the probability is relatively large).

Hello, there are three situations when the remote control aircraft cannot be charged, 1If the charging device is broken, you can plug it in, find a multimeter, hit the DC bibi crack voltage 20 volt gear measurement, a meter pen is connected to the inner test hole of the charging head, and a regret is closed outside, if there is electricity, the charger is good 2That is, the line from the aircraft charging port to the battery is desoldered, which may be one end of the charging head, or it may be one end of the battery (the probability is relatively large)3

It is a short circuit inside the battery (generally unlikely).

Suddenly it can't be filled, or is it gradually not filled?

The former case may be a wiring problem, or the battery has been left out for too long and has been over-discharged and lost.

The latter is when the life expectancy is reached.

1. The propeller was broken.

2. The engine speed is not enough (engine damage).

3. The internal parts deviate and displace, resulting in the aircraft being unbalanced.

A remotely piloted aircraft is an aircraft that can control flight from a distance. The first place in Chinese mainland is to sell a single machine (that is, the aircraft and the remote control are sold separately), so the cost of consumption will be very high, and the technology is not very developed at that time, and can not fly completely according to their own ideas, which requires very troublesome debugging of the aircraft and remote control, resulting in the limitations of consumer groups. With the development of science and technology, most of the remote control aircraft are sold as an all-in-one machine, and the manufacturer has been debugged.

If the upper and lower propellers can rotate, but the power is insufficient, then I think the battery is broken

It's not that complicated, the power transmission is normal, and the reason for the lack of power can only be to confirm the problem on the power supply, which is relatively simple, and you suddenly can't fly after you fall (judged to be a power transmission problem).

Or after charging, it is not possible to fly (the problem of the power battery).

Let me tell you, it's the master control servo inside the plane!! It is the rudder that is broken, and there is another is that the center point of the vertical tip and the droop disc on the servo is not aligned, it may be that you are playing after a violent collision, you must know that the remote control aircraft are not afraid of falling, only afraid of hitting!

Believe me that I am right, it should be the same for my plane, and then I take it to the manufacturer for maintenance, he told me.

It is recommended to read the control instructions carefully, maybe you don't know how to fly upwards.

Another possibility is that the fan blades are crooked or bent, resulting in insufficient lift.

The charging limit voltage of the lithium battery generally used in remote control helicopters is that if it is charged directly with 5V, it is likely that there will be power overload or battery **, because the internal resistance of lithium batteries is small, resulting in the charging current exceeding the power supply load capacity, and even accompanied by the power supply circuit board, wires, and battery heating, and there is no control circuit, the voltage exceeds the safe voltage (the reference value is that it will cause the battery to heat up, bulge and even **.

Therefore, the remote control helicopter battery should use a charger that is suitable for the battery type.

If it is a lithium battery with a protection circuit to charge with 5V, it can only be said that it is barely possible, and if it is not with a protection circuit, it is absolutely not, you can use a charger called universal charging to charge, that is, there are two electrodes that can adjust the width. Pay attention to the positive and negative poles and do not connect them incorrectly.

1. Whether the weight is too large.

2. Whether the battery is sufficient.

3. Whether the gear that drives the rotor is slipped.

4. Whether the balance bar is tilted left and right freely.

5. Whether the ambient wind is too strong.

6. Whether the rotor is streamlined design.

7. Whether the area of the small aircraft is open.

8. Whether there is a strong sunlight (remote control failure).

9. It may be a lack of power or a problem with the wing.

Remote control***, that is, a helicopter that can control the flight from a distance. It can be divided into several categories, such as toys, model airplanes, civil, and military.

Now the most common is the model aircraft remote control model, remote control is divided into two categories: electric and petrol, and the biggest difference with the reality of the first is that there is an aileron, which is used to better control the direction of the rotor.