It is of paramount importance that LiPo compatible chargers are only used for charging such batteries. As explained before, these batteries require special care and attention to prevent any mishap from occurring.
LiPo batteries use the concept of Constant Current/Constant Voltage (CC/CV) for charging.
Here’s what it looks like, basically as you connect the battery to the charger, initially it will maintain a constant charge rate until the battery reaches its voltage. And once the battery reaches its peak voltage, the voltage will be maintained at that rate and the quantum of current will be reduced slowly and steadily.
Also, Lithium Polymer Battery compatible chargers have a special feature of balancing, that is, not only they charge the battery to its peak, rather they maintain a balance in between the voltage of each cell that has been connected to the series. This contributes in optimum performance of the battery. A lot of balancers are available in the markets, however, it is both economic and efficient to buy a charger that has an in-built balancer and LiPo compatible chargers boast of that feature.
It is very crucial for the user to make sure that the Lithium Polymer batteries are well balanced which means that each cell hooked up in the series is at the same volt of around 3.7 Volts. Similarly, while charging a battery each cell will be charged up from the last voltage reading, it is rested on.
For example, if a 4S pack battery is put into use it will draw more current and the props will also spin at an increased rate.
Why am I showing you all these? The reason is that if one tries to attract more current from a battery beyond its capability, its voltage capacity will drop down soon. It will also lead to destroying chemistry content of the battery which can even reduce the time span of the battery.
There has not been any a case of a LiPo battery bursting into flames while in storage. The fire accidents involving LiPo batteries often happen during the battery’s charge or discharge. The majority of battery problems occur during charging, and the fault usually lies on the charger or the person operating it. This does not always happen, but these are the common factors in most LiPo battery fire cases.
There are lessons to learn from these incidents. First, users must invest in a good quality charger to avoid it being the cause of a fire. Second, the operator of the charger must learn how to operate it properly. An excellent choice of a charger LiPo battery is those with built-in checks. This type of battery charger allows the user to configure it properly.