A123 Battery Cells To your Radio Command Product Plane

Electric model airplanes have been all-around for around three decades. A tremendous dilemma  wholesale batteries     during the early days was battery power density. Quite simply, they merely weighed a lot of with the volume of juice you might get out of them. This example has enhanced considerably recently along with the introduction of Li-Poly cells, but a battery pack for a bigger design can certainly price a huge selection of dollars. The arrival of electrical cars, like the Toyota Prius has spurred a massive total of exploration into new battery technologies. In the following paragraphs, I'll explain another to Li-Poly batteries which offers intriguing options.

A123 Programs makes Lithium-Ion Nanophosphate cells. These cells use a nominal voltage of three.three volts and may face up to constant discharge fees of 30C. They may be safely discharged right down to 2.0 volts. The voltage stays quite continual as a result of the discharge cycle, however they do have got a sharp drop-off with the end. Assume three hundred cycles right before you see any reduction in capability though at one,000 cycles you can have 75% with the primary capability. They are really quite safe. Overcharging or about discharging will likely not bring about an explosion and will have minor outcome within the lifestyle on the battery. Balancing the cells when they're charged continues to be a good idea, although not absolutely necessary. They can be billed immediately immediately after use in fifteen minutes.

The cells can be found in two measurements. The initial M1 cell features a potential of 2.three Ah and weighs 70 grams (2.forty seven oz). A more moderen, scaled-down sizing can keep 1.one Ah and weighs forty grams (one.41 oz).

The key resource for A123 M1 cells has actually been DeWalt 36-volt transportable power-tool battery packs. Just about every pack incorporates 10cells. I obtained two of these for $100 each and every by Ebay. The prices seem to acquire gone up just lately to your $120-$130 assortment. One cells can be procured on line for $15 from a growing assortment of sellers. You may locate two from the lesser cells inside of a Black & Decker VPX battery pack which sells for about $15. The scaled-down cells can even be had for $12.50 just about every.

There are many Li-Poly chargers that support or can be modified to support the charging of these A123 cells. Because of the sharp voltage drop-off when discharged, you are probably better off using a timer when you fly. Otherwise you need your ESC to shut off the motor when 2.0 volts per mobile is reached.

Bottom line? These cells give you 70% the electricity density of Li-Polys for about 45% on the price. For many of us, that is a very good trade-off. They are really extremely harmless and will be billed in 15 minutes. If you close up buying half as many battery packs because in the shorter charge time, then they become a a lot better value.