Lithium Polymer (LiPo) Battery FAQ

Lithium Polymer Batteries is the favorite of electric power remote-controlled models. They are relatively cheap, easy, and hold lots of power. However, many new hobbyists may have some questions, the exercise of its functions.

Here are three frequently asked questions about this.

1. What is Cell Balancing?

Lithium Polymer batteries usually come as a pack of more than two individual battery cells packaged. For example, use electric helicopter 3-cell packs. Each of theseBattery cell has a rated voltage of 3.7 V, which means that every cell function if it maintains its charge can be 3.0 to 4.2 V. To go up or down, or below this range can damage the cell and makes it obsolete, or worse, too dangerous unstable and explode.

While the battery is in use, the power of each cell is not considered equal. Therefore, at the end of the flight, the cells are in the battery from the balance left. A non-balancing charger will stop charging the batteryPack if the voltage is the whole package without full consideration to each cell. This allows the battery is more and more, is unbalanced with each charge and would also result in a reduced capacity of the battery.

A balance charger deleted any unbalanced-cells symptoms of a battery by charging each cell individually, which ensures that the cell voltage at the end of each stay free in the balance. In essence, balance charger lengthen the life of the battery backand maximizes the performance of the pack and keep it stable and safe to operate.

2. What is C-Note?

A lot of radio-control planes quickly grasp the meaning of most of the battery-associated acronyms but one: the C rating. In fact, many experts have raised over himself trying to explain it. However, I have a tangible statement of an old Chinese battery manufacturer heard / expert very recently. That is: The "C rating" is the number you multiply to the capacityto get the battery to assess the discharge.

Still confused? Basically, one is 1000 mAh battery rated at 1C provide 1000 mA current for 1 hour. On the other hand, if the same pack was rated at 2C, it would provide 2000 mA current for 30 minutes.

3. How fast can I charge a pack?

Each lithium-polymer battery has a different maximum charge rate. It is very important, never in charge at a rating above the set! Most batteries have a label is that theseimportant information. However, if the fee is not specified, keep in mind that most Lipos are made to be charged at a rate of 1C. That means a 1000 mAh pack can be charged at 1A and a 500mAh pack can be calculated at 0.5. Once again, never more than the maximum charging power to the battery explodes!