Turnigy MEGA 400WX2 Operating Manual Download Page 20

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19

INC

The processor detects voltage of one cell is too low.

The 4th cell was damaged. The value of voltage may be zero if 
disconnection occurs.

The processor monitors voltage of each cell when the battery packs are during its storage 
and  discharging   process.  If  voltage  of  any  cell  is  abnormal,  MEGA  400W×2  will  show 
error  message  and  terminate  the  program  forcibly.  So  if  there  is  battery  damage  or 
disconnection,  you  can  see  the  error  message  and  press 

Inc 

to  know  which  cell  is 

damaged.

Voltage balancing and monitoring in the discharge process

DEC

-

Batt type
   Stop

Elapsed
time

INC

+

DEC

Start
Enter

-

INC

+

Charged
capacity

Battery
type

Charge 
current

Battery
voltage

This  program  is  for  charging  of  NiCd/NiMH  batteries 
associated  with  R/C  models  applications.  You  can  press 

Start/Enter

  key  to  make  it  blink  and  then 

Inc

  or 

Dec 

to 

change  the  parameter  value.  Press  START/ENTER  key  to 
store the value.

This  program  charge  the  battery  using  the  current  you  set  up.  In  the  auto   state, 
you  should  set  up  the  upper  limit  of  the  charge  current  to  avoid  damage  by  excessive 
feeding current. Some batteries of low resistance and capacity can lead to higher current 
in the auto charging mode. But in the manual mode, it will charge with the current you set. 
You can make it blink in the current field and press 

Inc

 and

 Dec

 simultaneously to swap 

between Auto and Manual Mode. NOTE: Allowable fast charge current: 1C-2C 

The screen shows the real-time status. Press 

Batt

 

Type/Stop

 

key to end the program. The sound will emitted to indicates 
the end of program.  

Charging NiCd/NiMH battery in the charge mode

'> 3 seconds  '

CHARGING NICD/NIMH BATTERY IN THE CHARGE MODE

Summary of Contents for MEGA 400WX2

Page 1: ...OPERATING MANUAL Balance Charger Discharger For LiPo LiFe LiIon NiMH NiCd Pb Batteries MEGA 400WX2...

Page 2: ...ode 17 Charging Lithium Battery in The Storage Mode 18 Discharging of Lithium Battery 18 Charging NiCd NiMH Battery in The Charge Mode 19 Discharge of NiCd NiMH Battery 20 Charge Discharge and Dischar...

Page 3: ...2 Membrane Button System INTRODUCTION 02 Display 1 Large 2x16 LCD for Easy Reading Display 2 Large 2x16 LCD for Easy Reading Left View Type Stop Button INC DEC Button Enter Start Button Type Stop Butt...

Page 4: ...ars of pleasure and success with your new battery charger MEGA 400W 2 employs the circuit that features dual output power of 400 watts each Total output power are 800 Watts Each output can charge or d...

Page 5: ...trouble All the settings can be configured by users Internal independent lithium battery balancer MEGA 400W 2 employs an individual cell voltage balancer It isn t necessary to connect an external bala...

Page 6: ...charging mode Capacity limit The charging capacity is always calculated as the charging current multiplied by time If the charging capacity exceeds the limit the process will be terminated automatical...

Page 7: ...to be charged or discharged to ensure it meets the requirements of this charger If the program is set up incorrectly the battery and charger may be damaged It can cause fire or explosion due to overc...

Page 8: ...t contacts at any point in the circuit Charging During charge process a specific quantity of electrical energy is fed into the battery The charge quantity is calculated by multiplying charge current b...

Page 9: ...said that NiCd and NiMH batteries are suffering from memory effect NiCd has more memory effect than NiMH Lithium batteries are recommended to be discharged partially rather than fully discharged Frequ...

Page 10: ...09 PROGRAM FLOW CHART...

Page 11: ...ncluded are large Terminal Clips with matching 4mm female bullet connectors for attaching directly to 12V car batteries It is critically important that you use either a fully charged 13 8 car battery...

Page 12: ...ger To avoid short circuit between the charge lead always connect the charge cable to the charger first then connect the battery Reverse the sequence when disconnecting WARNING Balance socket The bala...

Page 13: ...with the erroneous cell count This may cause the fatal result If the processor recognizes the cell count incorrectly at the beginning of charge or discharge process you may extend the time Otherwise...

Page 14: ...city value This program monitors the voltage of input battery If the voltage drops below the value you set the operation forcibly terminated to protect the input battery When you start a charge proces...

Page 15: ...es the form of a declining current curve C until the cut off point D is reached Charge current C 10 At this point the battery can be disconnected from the charger and is ready for use The final voltag...

Page 16: ...ou set up and the processor detects R shows the number of cells detected by the charger and S is the number of cells set by you at the previous screen If both numbers are identical you can start charg...

Page 17: ...he normal modes because the built in processor monitors voltage of individual cell and control input current fed into each cell to equalized voltage of individual cell Charging lithium battery in the...

Page 18: ...cess while the normal charging goes to 1 10 during CV term The charging capacity may be a bit smaller than normal charging but the process time will be reduced This displays the number of cells you se...

Page 19: ...5V for LiIo 3 85V for LiPo and 3 3V for LiFe per cell If the voltage of battery at its initial stage is over the voltage level to storage the program will start to discharge Number of cells DEC Batt t...

Page 20: ...ociated with R C models applications You can press Start Enter key to make it blink and then Inc or Dec to change the parameter value Press START ENTER key to store the value This program charge the b...

Page 21: ...25 0V Press Start Enter key for more than 3 seconds to start the program Charge discharge and discharge charge cycle of NiCd NiMH battery You can set up sequence on the left and the number of cycles...

Page 22: ...an not be used for fast charging please follow the instructions provided by the battery manufacturer Due to the chemistry characteristic of Pb battery the cut off point may be difficult to detect some...

Page 23: ...parameter in the screen will not affect the charge and discharge process They just present the specification of the battery The example is NiMH battery pack including 12 cells the capacity is 3000m Ah...

Page 24: ...played when the temperature probe is used Present input voltage You can inquire various information on the LCD screen during the charging and discharging process Press Dec key the charger will display...

Page 25: ...lfunctioned for some reason Seek professional advice The voltage is lower than which is set Please check the number of cells in the battery pack The processor cannot control the feeding current please...

Page 26: ...r XH Adaptor Temperature Sensor Cable EH Adaptor TP FP Adaptor Dean charging cable Tamiya charging cable TRAXXAS cable charging Glow charging cable Bullet charging cable EC3 charging cable Crocodile c...

Page 27: ...eet the following technical standards EN 61000 6 3 2007 Electromagnetic compatibility EMC Part 6 3 Generic standards Emission standard for residential commercial and light industrial environments EN 5...

Page 28: ...current Maximum circuit power chart Output 1 2 Per Output 5 0 3 0 2 0 1 5 1 2 1 0 5 0 3 0 2 0 1 5 1 2 1 0 5 0 3 5 2 3 1 7 1 4 1 2 5 0 5 0 4 2 3 3 2 8 2 4 2 1 1 9 1 7 1 5 1 4 1 3 1 2 1 1 20 0 20 0 20 0...

Page 29: ...e prescribed by law our obligation to pay compensation regardless of the legal argument employed is limited to the invoice value of those products which were immediately and directly involved in the e...

Page 30: ...f 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 Nominal voltage V The nominal voltage of the battery pack can be determined a...

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