Lithium Polymer (LiPo) Battery FAQ

Lithium Polymer Batteries may be the favourite electric power source of electric radio-controlled types. They’re comparatively inexpensive, light, and keep a lot of power. Even so, LiPo battery numerous new hobbyists can have some enquiries regarding their operations.

Listed here are a few regularly questioned questions about them.

one. Precisely what is Mobile Balancing?

Lithium Polymer batteries usually arrive packaged being a pack of a lot more than two person battery cells. Such as, electric RC helicopters use 3-cell packs. Every single of those battery cells has a nominal voltage of 3.7v; which suggests that every mobile can operate when it maintains its demand among three.0 to four.2v. To go higher than or below or under this range can problems the cell and render it worthless, or worse, turn into dangerously unstable and explode.

Though the battery is in usage, the facility drawn outside of each individual cell will not be equal. As a result, at the conclusion of each individual flight, the cells within the battery will be neglected of balance. A non-balancing charger will end charging the battery pack when the voltage in the overall pack is full with out paying out any interest to every mobile. This results in the battery to be a lot more and much more unbalanced with every single charge and would also result inside of a diminished overall performance of the battery pack.

A harmony charger gets rid of any unbalanced-cells signs of the battery pack by charging every cell independently; ensuring that the cell’s voltage remain well balanced at the end of each cost. In essence, stability charger lengthen the existence of your battery back again and maximizes its overall performance too as retain the pack stable and safe and sound to work.

two. What on earth is C score?

Plenty of radio-control fliers quickly grasp the which means of most of the battery-associated acronyms but a single: the C ranking. In fact, a lot of experts have tripped above on their own trying to describe it. On the other hand, I have read a graspable rationalization of it from an aged Chinese battery manufacturer/expert really recently. That’s: The “C Rating” will be the quantity which you multiply on the capacity of your battery to get its discharge fee.

Even now confused? Fundamentally, a 1000 mAh battery rated at 1C will provide 1000 mA of power for one hour. On the flip side, in the event the identical pack was rated at 2C, it could give 2000 mA of power for 30 minutes.

three. How fast can i demand a pack?

Every Lithium Polymer battery pack has a distinct greatest cost rate. It really is extremely important to never at any time cost in a ranking previously mentioned the desired rate! Most batteries have a label that specifies this vital info. Even so, if the optimum cost fee is not really specified, bear in mind that a lot of Lipos are made to get charged in a rate of 1C. Which suggests a 1000 mAh pack might be charged at 1A along with a 500mAh pack is usually billed at 0.5A. Once once more, never ever ever exceed the utmost cost fee lest the battery explodes!