DRONE BATTERY TECHNOLOGY Flashcards
LITHIUM POLYMER BATTERYIES (LIPOS, OR RECHARGABLE BATTERIES)
RECHAREABLE
SIMILAR TO LITHIUM ION
SOFT POUCH TO SAVE WEIGHT AND PROVIDE FLEXIBILITY
INDUSTRY STANDARD
BATTERY
DEVICE THAT CONVERTS STORED CHEMICAL ENERGY INTO ELECTRICAL ENERGY
LITHIUM BASED BATTERIES ARE
BEST ENERGY AND WEIGHT PERFORMACE, BUT ALSO HIGHLY REACTIVE AND FLAMMABLE
LITHIUM ION BATTERIES DONT USE
METTALIC LITHIUM, AND ARE SAFE AND EASY TO PRODUCE IN MASS
BATTERIES ARE COMPOSED OF
VOLTAIC CELLS
EACH CELL IS A SELF CONTAINED POWER UNIT FEATURING A ____ AND ____ TERMINAL
POSITIVE ANODE, AND NEGATIVE CATHODE
EACH CELL IS A SELF CONTAINED POWER UNIT FEATURING A ____ AND ____ TERMINAL
POSITIVE ANODE, AND NEGATIVE CATHODE
ANODE AND CATHODE ARE SEPERATED BY A
AN ELETROLYTIC MEDIUM
ANODE AND CATHODE ARE SEPERATED BY A
AN ELETROLYTIC MEDIUM
IONS ARE
CHARGED ATOMS OR MOLECULES
IONS ARE
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
IONS MIGRATE THROUGH THE ELECTROLYTES CREATING AN
ELECTRIC CURRENT
A SINGLE LI-PO BATTERY CELL PRODUCES
3.7 VOLTS (AT 80% CHARGE)
VOLTAGE IS THE
POTENTIAL FORCE AVAILABLE IN THE BATTERY TO PUSH THE CURRENT THROUGH THE CIRCUIT
ELECTRICAL UNITS THAT ARE BEING PUSHED ARE MEASURED IN
MILLIAMPS - mA (1000TH OF AN AMP)
BATTERY CAPACITY IS MEASURED IN
mAh = milliamp-hours
BATTERY CAPACITY IS MEASURED IN
mAh = milliamp-hours
cells are connected in
series or in parallel
series
voltage increases cumulatively (more voltage power)
parallel
the voltage stays the same, but the power is delivered for twice as long
xSyP
where x is the number of series, and y is the number of parallel cells
there are 3 c ratings
constant or continuously, and burst c rating
2 wires from battery pack
charge/discharge and balance
charge/discharge lead
provide power from the battery pack to the device, and also from charger to battery pack.
balance
makes all the cells are charged equally
do not discharge below the manufacturer’s recommended level (per cell)
liPo battery should not exceed what temperatures WHILE CHARGING
90-100F
STORAGE VOLT AMOUNT AND TEMP
3.85
40-70F
DO NOT CUT ACROSS
MULTIPLE WIRES AT THE SAME TIME
BATTERY DISPOSAL FOR LIPO
DRAINING BATTERY SO THAT IT REGISTERS NEAR 0 VOLTS, DISSECTING THE PACK AND SOAKING IT IN SALT WATER
VOLTAGE (V)
CURRENT (I)
RESISTANCE (R)
VOLTS
AMPS
OHMS
ELECTRICAL POWER IS MEASURED IN
WATTS
VOLTS X AMPS = WATTS
WATT HOURS
WATTS = HOW FAST HOURS = HOW LONG
CALCULATING ELECTRIC RUN TIME
CAPACITY (IN AMP HOUR) X 60/AMPS = RUN TIME
