Commonly Used Terms; Warranty And Service - Skyrc Ultimate 200W x2 Instruction Manual

COMMONLY USED TERMS

Commonly used terms
Final charge voltage: the voltage at which the battery's charge limit (capacity limit) is
reached. The charge process switches from a high current to a low maintenance rate
(trickle charge) at this point. From this point on further high current charging would cause
overheating and eventual terminal damage to the pack.
Final discharge voltage: the voltage at which the battery's discharge limit is reached. The
chemical composition of the batteries determines the level of this voltage. Below this
voltage the battery enters the deep discharge zone. Individual cells within the pack may
become reverse polarized in this condition, and this can cause permanent damage.
A, mA: unit of measurement relating to charge or discharge current.1000 mA = 1 A
(A=Ampere,mA=Milliampere)
Ah, mAh: unit of measurement for the capacity of a battery (Amperes x time unit; h = hour).
If a pack is charged for one hour at a current of 2 A, it has been fed 2 Ah of energy. It
receives the same quantity of charge (2 Ah) if it is charged for 4 hours at 0.5 A, or 15
minutes (=1/4 h) at 8 A.
'C'-rating: Capacity is also referred to as the 'C' rating. Some battery suppliers recommend
charge and discharge currents based on the battery 'C' rating. A battery's '1C' current is the
same number as the battery's rated capacity number, but noted in mA or amps. A 600mAh
battery has a 1C current value of 600mA, and a 3C current value of (3 x 600mA) 1800mA or
1.8A. The 1C current value for a 3200mAh battery would be 3200mA (3.2A).
Nominal voltage(V): The nominal voltage of the battery pack can be determined as follows;
-.NiCd or NiMH: multiply the total number of cells in the pack by 1.2. A 8-cell pack will have a
nominal voltage of 9.6 volts (8x1.2).
-.LiPo: multiply the total number of cells in the pack by 3.7. A 3-cell LiPo wired in series will
have a nominal voltage of 11.1 volts (3x3.7).
-.LiIo: multiply the total number of cells in the pack by 3.6. A 2-cell LiIo wired in series will have
a nominal voltage of 7.2 volts (2x3.6).
-.LiFe: multiply the total number of cells in the pack by 3.3. A 4-cell LiIo wired in series will have
a nominal voltage of 13.2 volts (4x3.3).
If the nominal voltage of the battery is not printed on the battery's label, consult your battery
manufacturer or supplier. Do not guess the rated voltage of battery.

Warranty and service

We guarantee this product to be free of manufacturing and assembly defects for a period
of one year from the time of purchase. The warranty only applies to material or
operational defects, which are present at t he time of purchase. During that period, we will
repair or replace free of service charge for products deemed defective due to those
causes.
You will be required to produce proof of purchase (invoice or receipt). This warranty is not
valid for any damage or subsequent damage arising as a result of misuse, modification or
as a result of failure to observe the procedures outlined in this manual.
Ultimate 200W×2
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