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Glossary of Terms
Amps (A): The unit of measure for charge or discharge electric current. The program of
the charger will show most of the current in amps (A) on the LCD screen.
Milliamps (mA): The electric current, being amps (A) divided by 1000 and noted as 'mA'.
So 2.0A is the same as 2000mA (2.0)
Capacity, milliamp hours (mAh), and amp-hours (Ah): Charge energy stored by a battery
is called capacity, which is defined as how much current a battery can supply constantly
over one hour of time. Most hobby batteries are rated for capacity in 'mAh' or milliamp
hour. A 650mAh battery can deliver 650mAh of current for one hour (650mA)
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.An 8-cell
pack will have a nominal voltage of 9.6 volts.
• Li-Po: multiply the total number of cells in the pack by 3.7. A 3-cell Li-Po
wired in series will have a nominal voltage of 11.1 volts.
• Li-ion: multiply the total number of cells in the pack by 3.6.A 2-cell Li-ion
wired in series will have a nominal voltage of 7.2 volts.
• Li-Fe: multiply the total number of cells in the pack by 3.6.A 2-cell Li-ion
wired in series will have a nominal voltage of 13.2 volts.
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 a battery.
'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
3200mA (3.2A)
