DRONE BATTERY TECHNOLOGY Flashcards

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1
Q

LITHIUM POLYMER BATTERYIES (LIPOS, OR RECHARGABLE BATTERIES)

A

RECHAREABLE
SIMILAR TO LITHIUM ION
SOFT POUCH TO SAVE WEIGHT AND PROVIDE FLEXIBILITY
INDUSTRY STANDARD

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2
Q

BATTERY

A

DEVICE THAT CONVERTS STORED CHEMICAL ENERGY INTO ELECTRICAL ENERGY

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3
Q

LITHIUM BASED BATTERIES ARE

A

BEST ENERGY AND WEIGHT PERFORMACE, BUT ALSO HIGHLY REACTIVE AND FLAMMABLE

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4
Q

LITHIUM ION BATTERIES DONT USE

A

METTALIC LITHIUM, AND ARE SAFE AND EASY TO PRODUCE IN MASS

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5
Q

BATTERIES ARE COMPOSED OF

A

VOLTAIC CELLS

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6
Q

EACH CELL IS A SELF CONTAINED POWER UNIT FEATURING A ____ AND ____ TERMINAL

A

POSITIVE ANODE, AND NEGATIVE CATHODE

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6
Q

EACH CELL IS A SELF CONTAINED POWER UNIT FEATURING A ____ AND ____ TERMINAL

A

POSITIVE ANODE, AND NEGATIVE CATHODE

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7
Q

ANODE AND CATHODE ARE SEPERATED BY A

A

AN ELETROLYTIC MEDIUM

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8
Q

ANODE AND CATHODE ARE SEPERATED BY A

A

AN ELETROLYTIC MEDIUM

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9
Q

IONS ARE

A

CHARGED ATOMS OR MOLECULES

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10
Q

IONS ARE

A

ATOMS OR MOLECULES WHERE THE TOTAL NUMBER OF ELECTRONS ARE NOT EQUAL TO THE TOTAL NUMBER OF PROTONS, WHICH GIVES THE IONS AN ELECTRIC CHARGE

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11
Q

IONS MIGRATE THROUGH THE ELECTROLYTES CREATING AN

A

ELECTRIC CURRENT

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12
Q

A SINGLE LI-PO BATTERY CELL PRODUCES

A

3.7 VOLTS (AT 80% CHARGE)

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13
Q

VOLTAGE IS THE

A

POTENTIAL FORCE AVAILABLE IN THE BATTERY TO PUSH THE CURRENT THROUGH THE CIRCUIT

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14
Q

ELECTRICAL UNITS THAT ARE BEING PUSHED ARE MEASURED IN

A

MILLIAMPS - mA (1000TH OF AN AMP)

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15
Q

BATTERY CAPACITY IS MEASURED IN

A

mAh = milliamp-hours

16
Q

BATTERY CAPACITY IS MEASURED IN

A

mAh = milliamp-hours

17
Q

cells are connected in

A

series or in parallel

18
Q

series

A

voltage increases cumulatively (more voltage power)

19
Q

parallel

A

the voltage stays the same, but the power is delivered for twice as long

20
Q

xSyP

A

where x is the number of series, and y is the number of parallel cells

21
Q

there are 3 c ratings

A

constant or continuously, and burst c rating

22
Q

2 wires from battery pack

A

charge/discharge and balance

23
Q

charge/discharge lead

A

provide power from the battery pack to the device, and also from charger to battery pack.

24
Q

balance

A

makes all the cells are charged equally

25
Q

do not discharge below the manufacturer’s recommended level (per cell)

A
26
Q

liPo battery should not exceed what temperatures WHILE CHARGING

A

90-100F

27
Q

STORAGE VOLT AMOUNT AND TEMP

A

3.85

40-70F

28
Q

DO NOT CUT ACROSS

A

MULTIPLE WIRES AT THE SAME TIME

29
Q

BATTERY DISPOSAL FOR LIPO

A

DRAINING BATTERY SO THAT IT REGISTERS NEAR 0 VOLTS, DISSECTING THE PACK AND SOAKING IT IN SALT WATER

30
Q

VOLTAGE (V)
CURRENT (I)
RESISTANCE (R)

A

VOLTS
AMPS
OHMS

31
Q

ELECTRICAL POWER IS MEASURED IN

A

WATTS

32
Q

VOLTS X AMPS = WATTS

A
33
Q

WATT HOURS

A
WATTS = HOW FAST
HOURS = HOW LONG
34
Q

CALCULATING ELECTRIC RUN TIME

A

CAPACITY (IN AMP HOUR) X 60/AMPS = RUN TIME