rechargeable c batteries notice in using battery - a1articles.com

After the appearance of Ni-Cd (nickel-In late 1970 and early 1980, many senior players realized that rechargeable batteries had a unique "personality ".In order to achieve the highest performance and maximum life, the rechargeable battery must be charged in a specific way.Whenever a new battery comes out, a difficult task is to identify its features and then find a way to get the best results.
Later, the NiMH battery (nickel-Metal hydrogen batteries (also known as green batteries) were born, ranging from 3000 to 3300,3600, 3800,4200 recently.NiMh battery capacity and performance continue to leap, driving the car to achieve more amazing speed and longer discharge time.However, due to the inherent nature of the NiMH battery, the rechargeable battery with different capacity is similar to the maintenance process.
Let's take a look at each of the common charging problems.Please note: the value we are talking about is based on the normal 10 th power-saving car power battery, that is, the size of the sub-batteryC.In the era of NiCd, we usually charge with twice the capacity value of the battery, such as the battery of 1800 mAh (mAh: mA * h;1.
8 times 2 is 3.
6, then 3-4 amps are safely charged and fully charged.This law is basically applicable for NiMh batteries.A battery with a larger capacity can be charged with a higher current, but this factor should be maintained.
In general, 5 amps is a good starting value, so we can try to increase the current, like 5 amps.5 amps, 6 amps, installed in the operation of the car, what is the difference in the feeling;Finally, you can find a suitable current value.Normally, the current is high, the battery will be stronger and more explosive, but may not be as full as the current low.
Please note: high currents such as 8, 9A may not improve performance or even damage the battery.Recommended between 4.0 to 6.5 amps.Basic rule: charge too full but do not damage the battery.Almost all types of "peak detection" chargers can be used to charge NiMH batteries.
However, be careful not to use chargers that are not specifically designed for NiMH chargers.Peak detection is to indicate that the battery capacity has reached its maximum by detecting the amount of voltage drop in the charger.When Ni-Cd battery during the charging process, the voltage fluctuation is large, and the voltage drop in the last section of the charging is also large.
Although the NiMH battery voltage is more stable and volatile during charging, the time for voltage drop to reach maximum capacity is also smaller.So, for Ni-The Cd battery does not stop charging until the battery generates a relatively large voltage, so using this charger will causecharging.So, don't buy some that are relatively cheap, but can't adjust the value of the peak detection charger.
If the detection peak of the charger is adjustable, then the best setting is to start with 0.02 to 0.03 v (6 batteries in the whole row ).The voltage drop detected by the charger can trigger the stop charging.If the value is small, such as 0.01 V, charging often has a better effect, but for some people whose performance is not very good, this low value may cause the phenomenon of "virtual charging full.
It is some normal voltage fluctuation that triggers the stop charging.g.Temperature sensor control: Some chargers have temperature sensing probes.The probe of the NiMH battery will be more than Ni-Cd when formmer reaches maximum capacity.
For the excellent performance of the battery, Ni-The Cd is between 35 and 37 degrees while NiMH 40-45 degrees.Remember, this is the probe reading, not the feeling of your hand.Temperature sensor detection is a good supplement to peak detection.
It is sensitive to the temperature change of the battery and helps to determine whether the battery reaches the maximum capacity, avoiding overheating when charging the battery and damaging the battery at the same time.There are many models to choose from for the charger.Some models are specially designed to improve Ni-But it will damage the NiMH battery itself.
No matter what brand of charger, NiMH batteries should be charged in "linear" mode (linear.The current process in the linear mode is not controlled by fluctuations or the polarity reversal in the charging process.Occasionally charging the NiMH battery in the wrong mode will not have any significant impact on the discharge time, but will reduce the battery voltage.
Basic rule: charge with linear model.
This is the only mode for the vast majority of high-high default modesgrade and low-Charger.The use of trickle charging (trickle charging) in NiMh batteries should be avoided ).After charging some quick chargers, then trickle the charge.
This model is from Ni.
Cd batteries, so that they maintain the highest voltage between full power and the small period to be used, but this mode is not good for NiMH batteries.We should set the charger drop mode to "off" and if it cannot be set then disconnect the battery from the charger immediately when it is full.When you do not use a fully charged battery for a long time (or even a few days), its internal resistance increases, resulting in punch-in and loss of capacity.
However, this becomes most important when storing for a week or more.To prevent damage to the battery, do not charge the battery when stored.Charge to about 80-85% is the best for the battery and will greatly reduce the aging rate.
In addition, storing the battery in the refrigerator helps reduce the effect of storage (assuming your refrigerator will not freeze milk all the time ).Or by plane in the winter, you can keep the RC battery in a more appropriate way