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TME Xtrema, Instruction Manual, Page: 11 / 17

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TME Xtrema Instruction Manual Download Page 11

11

TIP! 

For 

“

Volts minimum

”

 to display properly you should connect the battery to the Xtrema 

before you enter the Wattmeter mode. Otherwise the minimum voltage displayed will be zero 0.00. 
If you have already entered the Wattmeter mode simply push the joystick  

 left once then  

right to temporarily go to the main menu and then re enter the Wattmeter mode

Also note that at any time you want to reset the minimum and peak settings you may simply go 
back to the main menu temporarily as described above.

6. SETUP MENU

The setup menu allows you to customize the internal setting of the Xtrema. You enter the setup 
menu from the main menu by selecting ..setup.. and pressing the joystick to the

 right.

  Xtrema Main Menu:

o    Li Charger

f   

”

 Wattmeter  

f  

’

 

 ..setup..  

‘

Upon entering the setup menu you will see three options. The first is Li Setup which allows 
you to change charger settings such as volts per cell, the safety timer and the temperature cutoff. 
The second option 

Beep Options

 lets you set up how the Xtrema makes sounds. The third 

option 

Set Defaults

 merely restores all the factory default options.

Li Setup

Select LI SETUP from the setup menu and press the joystick to the

 right.

Choose one of the following by moving the up 

 or down 

buttons and press the joystick 

to the 

 right.

Volts / Cell

This setup menu allows you to change the maximum voltage that the Xtrema stops charging.  You can 
program the Xtrema to charge from 3.6 volts / cell to 4.20 volts / cell.  Note that this is a GLOBAL setting 
meaning that it will affect all of your memorized pack configurations.

Choose the desired voltage by moving the up 

 or down 

buttons and press the joystick to the 

 right 

when the displayed value is what you desire. You may abort the change by hitting the joystick 

 left.

Why change the Volts per cell?

Different Lithium chemistries require charging up to different voltages. You can charge Lithium Polymer 
packs lower to increase their longevity and for long term storage. The chart and descriptions below can 
help you select the right volts / cell. 

Recommended Volts/Cell

LiPo

M1

Charge

4.0 to 4.2 

3.6

Storage

3.7

none

Summary of Contents for Xtrema

Page 1: ...of trouble free operation Safety while charging is an integral part of the design of the Xtrema and a high priority at TME Two collective features actively prevent overcharging your battery They serve as backup to the normal constant voltage termination The temperature cutoff provides the first level of protection It is set to shut off your charger if your battery goes over 104 F This default temp...

Page 2: ...a s revision In this way we can provide you with the most up to date and complete manual without having to worry about delaying updates because of a surplus of printed manuals If you do not have a computer to print out your manual you can take it to a friend or nearby library to print it out Updates and the latest news on the Xtrema can be located on our special Xtrema web site Simply go to www th...

Page 3: ...e DO NOT CHARGE in direct sunlight DO NOT CHARGE when ambient temperature is very HIGH or LOW DO NOT CHARGE when Li battery pack is hot or near flames DO NOT USE an Automobile battery charger for the input power source Use a regulated 12 to 13 8V DC supply or a 12 Volt Lead Acid battery capable of providing up to 20 amps when charging at the maximum charge capacity Your supply must maintain a mini...

Page 4: ...tandby off state Momentarily pressing the joystick again in any direction will restart the Xtrema back to normal operation 4 CHARGING a Lithium Li Battery Overview How the charger works The Xtrema charges lithium batteries using the constant current to constant voltage method CC CV recommended by Lithium battery manufacturers When you start a charge cycle the first thing the Xtrema does is test to...

Page 5: ...ly come on during high power charging The cooling it provides is an integral part of the Xtrema s power to charge large packs WARNING Your charger comes with factory default settings of 4 2 volts per cell These settings are ideal for obtaining the maximum charge from Lithium Polymer type cells These settings must be changed to 3 6 volts per cell when charging M1 High Power Hypersonic TM Lithium Io...

Page 6: ... the joystick until it is selected Press the joystick to the right to enter Li Charger mode Xtrema Main Menu o Li Charger f Wattmeter f setup Select the cell count and milliamps Slct 2 750 Batt 3cell 2000mA Mem 5 5000 10 3500 5 You will see four battery pack configurations that can be customized and remembered by the Xtrema These can represent four of your most common pack configuration Use the up...

Page 7: ... the right button to continue If not you can change the milliamps at this point by using the up or down buttons until the milliamps you want is displayed Notice that holding the button up or down will rapidly advance through the numbers When the milliamps you want is displayed press the right button to continue Note Unlike some other chargers the Xtrema does not require you to convert from amps to...

Page 8: ...ema will quickly test your pack to see if its voltage is plausible with your selection If it measures a voltage over your terminating voltage cell count X MAX volts cell it will abort and display a HI BAT V message If it measures a voltage below your minimum voltage cell count X MIN volts cell it will abort and display a LO BAT V message The chart below indicates valid cell voltages for different ...

Page 9: ...arge rate that should put a minimal stress on the battery while charging however you may want to consider changing the max safety timer to say 150 240 minutes to allow the extra charge time Note After the charging has started if you hit any key to abort the ABORTED Status will show and the unit will stop charging Hit any key again to go to menu Note After the charge cycle has ended the Xtrema will...

Page 10: ...f not push the up or down buttons on the joystick until it is selected Press the joystick to the right to enter Wattmeter mode 2061 9 Watts 2 76 Hp 36 80 Volts 56 03 Amps 83F Exit 00 08 17 More You are now able to measure Watts amps volts temperature and even horsepower Pressing the right button will allow you to toggle into the STORED mode which will display peak amps minimum voltage max temperat...

Page 11: ...option Beep Options lets you set up how the Xtrema makes sounds The third option Set Defaults merely restores all the factory default options Li Setup Select LI SETUP from the setup menu and press the joystick to the right Choose one of the following by moving the up or down buttons and press the joystick to the right Volts Cell This setup menu allows you to change the maximum voltage that the Xtr...

Page 12: ...lightly less capacity per charge The reason you may want to do this is to extend the cycle life of your batteries Choosing 4 15 volts cell may only reduce the capacity of your charge by about 5 percent but it will extend the useful life of your pack by many cycles Note If you have reduced the volts cell value and you try to charge batteries previously charged at a higher volts cell they will cause...

Page 13: ...t the cutoff temperature a few degrees above room temperature but under body temperature 98 F Start the charge as you normally would and grab the temperature probe with your hand Hold it tightly to transfer your body heat to the probe and make the temperature rise You should see the temperature display climb while charging It should abort the charge as soon as the temp display reached the limit yo...

Page 14: ...etup menu and press the joystick to the right This option will instantly set the Xtrema back to the factory default options The defaults are 4 20 Volts cell 120 minute safety timer abort 104 F max temperature abort Remind Me beep mode ...

Page 15: ...um Ion Lithium Polymer Safety Timer 10 990 minutes 120 default Fan On only when needed for longer life Safety Temperature Cutoff 60 F 130 F 104 F default Display 4 line X 20 character LCD display Audible Alarms Piezo Speaker alarms15 seconds beep once or disable WATTMETER SPECIFICATIONS Input Supply Voltage 6 5V 15V DC 40 ma Wattmeter Output Connections 14 Gauge Fine Strand Silicon Wire Voltage Me...

Page 16: ...that the battery does not appear to be present or is connected backwards Check your wiring and battery connections other causes may be an open pack CHCK MOT This error message is displayed if the Xtrema detects during the testing phase prior to charging battery current going to the motor leads Make sure your motor is disconnected and restart the charger ABORTED This error message is displayed if t...

Page 17: ...ll returned units after the first 30 days and should be enclosed with the unit Be sure to enclose your Bill of Sale as proof of purchase with the unit A legible photocopy is acceptable In the event that the work is not covered under the warranty TME will attempt to contact the owner unless special instructions or a credit card number are received with the unit FREE LIFETIME UPDATES The Xtrema carr...

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