FlightPower Discharge Performance

Discharge Performance. Pictured left is the Enerland discharge
curve for the this cell type created using an Arbin Instruments
industrial battery tester. The practical outcome is extremely high
voltage held under load which means that when more Amps are drawn at
high throttle more Watts are delivered (instead of the volts
dropping away). Amps x Volts = power in Watts. The FlightPower EVO
20 manufacturing process has been designed with the RC user in mind
to ensure that packs created from multiple cells are able to hit the
target of multiples of the voltage performance seen here. Accurate
cell matching during manufacture and low resistance joints are the
key to achieving this and verification has taken the form of
high-discharge load tests using brushless motor loads as well as
numerous independent flight tests by world-famous pilots and the
testing houses of large distributors, all of which have confirming
that the EVO 20 product is a performance leader in a class of its
own.
In common with other reputable makes of RC battery, the
continuous C-rating of "20 C" applied to the EVO 20 line is a
measure of the maximum continuous current drawn before the pack will
suffer excessive wear, however depending on the brand, the
definition of excessive wear can be unclear and can range from
immediate damage to a number of cycles. In the case of FlightPower
EVO 20 we estimate 50 charge and discharge cycles using a 20C motor
and prop/EDF load under a 1 C charging regime and have satisfied
ourselves in testing that we can exceed this in real life. The vast
majority of RC applications use a great variety of throttle demands
during discharge therefore the purpose of selecting a 20C EVO 20
battery pack is to ensure an exciting throttle response is available
upon demand. |