FlightPower Charging
Caution: Maximum care and appropriate equipment in the area of
charging are mandatory for the safe operation of Lithium Polymer
batteries.
A lithium Polymer compatible charger is the minimum requirement.
With Lithium Polymer (and Lithium Ion) battery types there is no
delta peak to for a delta peak charger to detect and therefore the
use of a NiCd or NiMH charger or a multifunction charger set to NiCd
or NiMH mode is expressly dangerous (fire hazzard).
Lithium Polymer battery chargers operate using a CC+CV charging
profile, this means that the current (Amps or Milli-Amps) set will
apply to the charge cycle during an initial "Constant Current" mode
until the voltage of the pack reaches around 4.0V per cell. After
this the charger will change mode to Constant Voltage charging and
will terminate when the pack is drawing only a very small amount of
current.
Charge Rate: The FlightPower EVO 20 range should normally be
charged at 1C during the Constant Current phase of charging (the
charge current setting on the charger). This means that an EVO 20
1800 mAh pack should normally be charged at 1.8 Amps (or 1800 Milli
Amps). This will result in a pack that is 90% full in around 1 hour.
Fast Charging: In conjunction with Enerland, the FlightPower
EVO 20 range has been qualified for 2.5C charging as a combination
of cell technology and matching by FlightPower at the point of
manufacture. This means that an EVO 20 1800 mAh pack can be
fast-charged at 4.5 Amps (or 4500 mAh). This will result in a pack
that is 90% full in around 25 minutes. (All) fast charging of
rechargeable chemistry results in a reduction in cycle life, it is
therefore recommended that fast charging be done when time is of the
essence. |
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