Bantam BC8HP Instructions d'exploitation télécharger pdf (Page 22)

STATION

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) at its LCD screen.

Milliampere(mA): The electric current, being amps(A) multiplied by 1000 and noted as 'mA'. So 2.0A is

the same as 2000mA (2.0x1000). Or, to convert mA to amps, divide the mA number by 1000. So 200mA

is the same as 0.2A. If a current value is below 1.0A, the LCD screen of the charger will still show the

current in amps, not milliampere. For example, a current of 600mA will be displayed as 0.6A, and a

current of 100mA will actually be shown as 0.1A.

Capacity,milliampere 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 milliampere hours. A 650mAh battery can deliver

650mA of current for one hour (650mAx1hr = 650mAh). The batteries of very large capacity, such as

lead-acid(Pb) batteries, are usually rated in 'Ah' or amp-hours. A '12V 60Ah' car battery can deliver 60

amps of current for one hour (60Ax1hr = 60Ah).

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.

'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).

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Bantam BC8HP Instructions d'exploitation Page 22