A123 Battery Cells For your personal Radio Manage Model Airplane

Electric powered product airplanes are already all over for about a few decades. A massive issue  wholesale batteries     inside the early days was battery electrical power density. To put it differently, they simply just weighed far too much for the quantity of juice you could potentially get from them. This situation has improved significantly lately with the introduction of Li-Poly cells, but a battery pack for a bigger product can easily value a huge selection of pounds. The appearance of electric autos, like the Toyota Prius has spurred an unlimited quantity of study into new battery systems. On this page, I will explain an alternate to Li-Poly batteries which offers intriguing choices.

A123 Systems produces Lithium-Ion Nanophosphate cells. These cells have a very nominal voltage of three.three volts and may stand up to constant discharge costs of 30C. They are often securely discharged down to two.0 volts. The voltage stays relatively consistent through the discharge cycle, nonetheless they do have got a sharp drop-off for the conclude. Be expecting three hundred cycles ahead of you recognize any reduction in potential while at 1,000 cycles you may have 75% of the first potential. They can be pretty secure. Overcharging or in excess of discharging is not going to result in an explosion and may have very little impact around the daily life from the battery. Balancing the cells when they're charged continues to be a superb thought, but not absolutely expected. They are often charged quickly following use in fifteen minutes.

The cells can be found in two measurements. The first M1 cell has a potential of two.three Ah and weighs 70 grams (two.forty seven oz). A more recent, smaller sized dimensions can hold one.1 Ah and weighs 40 grams (1.41 oz).

The main source for A123 M1 cells has become DeWalt 36-volt portable power-tool battery packs. Each individual pack incorporates 10cells. I obtained two of those for $100 every as a result of Ebay. The prices seem to have gone up just lately towards the $120-$130 variety. One cells can be obtained on the web for $15 from the expanding range of vendors. You'll be able to come across two from the scaled-down cells inside a Black & Decker VPX battery pack which sells for about $15. The smaller cells may also be had for $12.50 each and every.

There are many Li-Poly chargers that support or may be modified to support the charging of these A123 cells. Because with 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 strength density of Li-Polys for about 45% of the price. For many of us, that is a good trade-off. They're extremely safe and sound and may be billed in fifteen minutes. If you conclude up buying half as many battery packs because of your shorter charge time, then they become a considerably better value.