PARKZONE P-47 Thunderbolt - Flight Battery Charging Procedures; Step-by-Step Battery Charging; Understanding Low Voltage Cutoff (LVC)

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Charging the Flight Battery
Battery Capacity Maximum Charge Rate
300-400mAh 300mA
500-1000mAh 500mA
1000-1500mAh 1A
1500-2000mAh 1.5A
2000mAh + 2.0A
The Battery Charging Process
1. Chargeonlybatteriesthatarecooltothetouchandarenotdamaged.Lookatthebatterytomakesureitisnotdamagede.g.,swollen,bent,brokenor
punctured.
2. Attachtheinputcordofthechargertotheappropriatepowersupply(12Vaccessoryoutlet).
3. WhentheLi-Pochargerhasbeencorrectlypoweredup,therewillbeanapproximate3-seconddelay,thenanaudible“beep”andthegreen(ready)
LED will flash.
4. TurnthecontrolontheAmpsselectorsothearrowpointstothechargingraterequiredfortheBattery(seechart,forexampletheThunderbolt’s
2200mAhLi-Pobatterywillchargeat2.0amps).DONOTchangethechargerateoncethebatterybeginscharging.
5. Movethecellselectorswitchto2-cellor3-cellforyourbattery.
6. ConnecttheBalancingLeadoftheBatterytothe2-cell(ithas3pins)or3-cell(ithas4pins)chargerport.
7. The green and red LEDs may flash during the charging process, when the charger is balancing cells. Balancing prolongs the life of the battery.
8. Whenthebatteryisfullycharged,therewillbeanaudiblebeepforabout3seconds,andthegreenLEDwillshinecontinuously.
9. Always unplug the battery from the charger immediately upon completion of charging.
CAUTION: Overcharging a battery can cause a fire.
YourThunderboltcomeswithaDCbalancingchargerand3SLi-Pobattery.You
mustchargetheincludedLi-PobatterypackwithaLi-Pospecicchargeronly
(suchastheincludedcharger).Neverleavethebatteryandchargerunattended
during the charge process. Failure to follow the instructions properly could result
inare.Whencharging,makecertainthebatteryisonaheat-resistantsurface.
Charge the flight battery while assembling the aircraft. Install the fully charged
battery to perform control tests and binding.
DC Li-Po Balancing Charger Features
•Charges2-to3-celllithiumpolymerbatterypacks
•Variablechargeratesfrom300mAhto2-amp
•Simplesinglepush-buttonoperation
•LEDchargestatusindicator
•LEDcellbalanceindicator
•Audiblebeeperindicatespowerandchargestatus
•12Vaccessoryoutletinputcord
Specications
•Inputpower:12VDC,3-amp
•Charges2-to3-cellLi-Popackswithminimum
capacityof300mAh
3S11.1V2200mAhLi-PoBatteryPack(PKZ1029)
TheParkZone®3SLi-Pobatterypackfeaturesabalancingleadthatallows
youtosafelychargeyourbatterypackwhenusedwiththeincludedParkZone
Li-Po balancing charger.
WARNING: Failure to use the proper charger for a Li-Po battery can result in serious
damage,andifleftcharginglongenough,willcauseare.ALWAYSusecaution
when charging Li-Po batteries.
WARNING:Selectingachargeratehigherthan1x(onetimes)thebatterycapacity
may cause a fire.
Note: Attempting to charge an over-discharged battery will cause the charger to repeatedly flash and beep, indicating an error has occurred.
Low Voltage Cutoff (LVC)
WhenaLi-Pobatteryisdischargedbelow3Vpercell,itwillnotholdacharge.
TheESCprotectstheightbatteryfromover-dischargeusingLowVoltageCut-
off(LVC).Beforethebatterychargedecreasestoomuch,LVCremovespower
supply from the motor. Power to the motor pulses, showing that some battery
power is reserved for flight control and safe landing.
Whenthemotorpulses,landtheaircraftimmediatelyandrechargetheight
battery.
Disconnect and remove the Li-Po battery from the aircraft after use to prevent
trickledischarge.FullychargeyourLi-Pobatterybeforestoringit.Duringstor-
agemakesurebatterychargedoesnotgobelow3Vpercell.