A123 Batteries (REP/RXX)A123 Batteries 2300mAh (White)
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Application: RC Airplanes, Helicopter
Voltage: 3.2V
Components: LifePO4
Battery Type: A123
Nominal Capacity: 2300mAh
Size: 65 x 26 mm
Weight: 50g
Composed Type: Single Cells
A123 cells use a patented "Nano Technology" LifePO4 chemistry to provide an alternative to Lithium Polymer (Li-Po) type batteries.
Lithium Polymer battery packs more total power per gram, and are able to discharge more power in a given time per gram compared to LifePO4 A123. But LifePO4 A123-Brand cells do offer some important advantages:
* SAFETY - LifePO4 A123 cells are not prone to "thermal runaway" when subjected to ver-voltage charging. As a result, it is extremely unlikely that they could catch fire, even if you - or your charger - make a mistake in settings.
* FAST CHARGE - LifePO4 A123 cells can be safely charged at rates up to 4.3C! That means that charging can be accomplished in as little as 15 minutes whereas a Lithium Polymer pack takes more than twice the time at best. If you compare a Lithium Polymer battery pack with an A123 battery pack of the same weight, you'll typically get more flight time from the LiPo pack "Per Flight". But when you consider the fast charge capability of the A123 LifePO4 pack, you may well get much more total Flight Time per Day.
* CYCLE LIFE - A123 data states a maximum discharge rate of 30C. While the cells are capable of 30C continuous rates, voltage will drop substantially. As such, the maker of these A123 made an extensive tests lead them to recommend Prop/Motor/Battery combination such that 23C is the maximum current drawn when the A123 pack is freshly charged. Their tests show that when used at those rates the A123 packs are capable of well over 200 cycles with less than 10% drop in capacity. By comparison, the best quality Lithium Polymer packs can only guarantee 100+ cycles at similar rates.
* SHELF LIFE - In addition to their excellent cycle life, A123 LifePO4 cells have been shown to degrade very little over a two-year period while unused. Even the best Lithium Polymer may lose 10% capacity or more over two years of storage. Poor quality Lithium Polymer (typically Chinese Manufactured) may become unusable in less than a year, by comparison.
* DURABLE CONSTRUCTION - The Cylindrical A123 cell construction is more durable than typical Lithium Polymer cells, and so less likely to incur daily dents, dings, and damage from light crashes.
* TCO (Total Cost of Ownership) - A123 LifePO4 cylindrical cells are very reasonably priced in comparison to quality Lithium Polymer alternatives "up front". But the real value comes in over time, as the long Cycle Life, long Shelf Life, and Durable Construction all combine to lower the total cost per flight over the life of an A123 battery pack. In other words, you get a lot more flights for the money you spend. In particular, don't be fooled by the low initial cost of "cheap" Lithium Polymer packs. In many cases these packs provide even less energy density than LifePO4 cells, can't be safely fast charged, and often last less than 20 flights before "worn out". Price: PHP 0.00
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