Maha Energy Battery Charger MH C9000 User Manual

Supported Capacity*:  
Charger Input Power:  
Adapter Input:  
100 to 20,000mAh  
12V 2.0A  
100-240V 50/60Hz  
* Always ensure that the batteries can accept the programmed rates.  
MH-C9000  
WizardOne Charger-Analyzer  
Thank you for purchasing the Powerex MH-C9000  
Charger-Analyzer. Read these instructions carefully  
and thoroughly before operating this unit. IMPORTANT  
SAFETY INSTRUCTIONS. READ AND SAVE THESE  
INSTRUCTIONS.  
OPERATING THIS PRODUCT INCORRECTLY CAN  
CAUSE DAMAGE TO THE BATTERIES.  
READ MANUAL COMPLETELY BEFORE USE.  
GENERAL BATTERY EDUCATION  
GENERAL PRECAUTIONS  
Do not charge battery cells other than NiMH or NiCD. Please check  
with the battery manufacturer to ensure it can accept the  
programmed charging and discharging rates. Do not expose the unit  
to rain or moisture due to the risk of fire.  
What is 0.1C, 0.2C, etc?  
“C” stands for the battery capacity and the number in front of it is the  
fraction of the battery capacity. For example, 0.1C means 0.1 times the  
capacity for the battery. For a 2700mAh battery, 0.1C would be 0.1 times  
2700mAh which equals 270mA.  
Do not operate the charger if it appears damaged in any way.  
Always place the battery cells with positive tip facing the top.  
Incorrect polarity may cause fire or explosion. Observe polarity  
diagrams located on the charger.  
Choosing the right charging & discharging rate  
Do not allow the unit to be exposed to direct sunlight. Operate in  
well-ventilated area. Do not place unit on the carpet.  
Charging at a rate below 0.33C and above 1.0C is not  
recommended.  
Do not allow the battery terminals to become shorted.  
To reduce the risk of damage to the power cord, always pull by  
connector rather than the cord.  
Charging too slow may prevent the charger from terminating correctly.  
Charging too fast may damage the battery.  
Use only the supplied adapter or optional regional and car adapter  
offered by Maha Energy. Using third party accessories voids the  
product warranty.  
Typically speaking, slower charging rate will yield better battery  
performance but requires longer time. Faster charging rate may not  
charge as fully and battery temperature can be higher.  
Battery Matching  
FEATURES & SPECIFICATIONS  
In most devices, usually two or more batteries are used together. When  
batteries are used in a series, the performance is limited by the worst  
one. In other words, one poorly performing battery can significantly  
reduce the device runtime.  
Four independent slots for AA or AAA NiMH batteries.  
Backlit LCD display.  
Battery matching refers to grouping batteries with similar “actual”  
capacity. To perform this, use the Refresh & Analyze mode to determine  
the battery capacity. Group batteries with capacity within about +/- 5% of  
the rated capacity.  
Digitally displays capacity, voltage, time and current.  
Five modes of operation: Charge, Refresh & Analyze, Break-In,  
Discharge and Cycle.  
19 selectable charging current from 0.2A to 2.0A.  
10 selectable discharging current from 0.1A to 1.0A.  
Worldwide power supply.  
Battery “Forming”  
New batteries and those stored for extended period become chemically  
deactivated. Battery forming is a charge-discharge-charge cycle which  
forces a full charge into the battery at a very slow rate. This process  
activates the battery. In certain cases, it needs to be repeated two or  
three times.  
Charging Current:  
Programmable from 0.2A to 2.0A in  
increments of 0.1A  
Battery forming can be performed using the Break-In mode.  
Topoff Charging Current:  
100mA  
Maintenance Charging  
Current:  
10mA  
Discharge Termination:  
Voltage 1.00V  
Discharging Current:  
Programmable from 0.1A to 1.0A in  
increments of 0.1A  
Capacity Storage Memory:  
12 (Cycle mode only)  
PRINTED IN TAIWAN A03-3713420-496  
 
If REFRESH & ANALYZE mode is selected:  
The charger will prompt for the charging rate by flashing “SET CHG  
RATE.” Use the UP and DOWN key to choose the desired current.  
Press ENTER to make the selection.  
Then it will prompt from the discharging rate by flashing “SET  
DISCHG RATE.” Follow the same procedure as above.  
6. To ensure safety, the charger performs an “impedance check” at the  
beginning of the program. If the battery fails this test, “HIGH” would  
be displayed and program will be terminated.  
If BREAK-IN mode is selected:  
The charger will prompt for the battery capacity in order to calculate  
the charging and discharging rate automatically. “SET BATTERY  
CAPACITY” will flash. Use the UP and DOWN key to choose the  
desired current. Press ENTER to make the selection.  
Typically alkaline and extremely aged battery will fail this test. For a  
rechargeable battery, it is recommended for the battery to be  
discarded.  
NOTE: This test is not performed for the discharge mode.  
If this detection is believed to be incorrect, a discharge can be  
performed first.  
7. While executing the programmed function, the charger will display  
the battery status for each occupied slot consecutively. The screen  
will first show an arrow below the active bank and display the  
information. The next slot(s) occupied follows.  
If DISCHARGE mode is selected:  
Press the SLOT button at anytime will jump to the next occupied  
slot. Press this button multiple times if necessary to go to the desired  
slot.  
The charger will prompt for the discharging rate by flashing “SET  
DISCHG RATE.” Use the UP and DOWN key to choose the desired  
current. Press ENTER to make the selection.  
The following information is displayed on the screen:  
Current:  
This is the number followed by the unit “MA.” This is the  
approximate charging or discharging current. Note that this number  
will go up and down due to the pulse charging.  
If CYCLE mode is selected:  
The charger will prompt for the charging rate and discharging rate  
similar to the other modes. In addition, it will also prompt for the  
number of cycles to be performed by flashing “SET CYCLES.” Use  
the UP and DOWN keys to choose the desired cycles. Press  
ENTER to make the selection.  
Capacity:  
This is the number followed by the unit “MAH.” This is the  
accumulated charging or discharging capacity. If it is charging  
capacity, “CHARGE” in black box will be shown. If it is discharging  
capacity, “DISCHG” in black box will be shown.  
PRINTED IN TAIWAN A03-3713420-496  
 
For CYCLE mode, the discharge capacity of the final cycle is  
displayed. “CYCLE HISTORY” icon will also be shown. Use the UP  
and DOWN key to access discharge capacity for all the cycles  
performed.  
The capacity information will be stored as long as the battery is  
inserted in the charger. It will be lost upon removal of the battery.  
Note the charging capacity is usually higher than the actual capacity  
of the battery owing to some energy lost as heat. Charging capacity  
cannot be used to judge the performance the battery. Instead, it can  
only be used to determine the progress of the charger. It is normal  
for this number to exceed the actual capacity by as much as 20-  
30%.  
THREE-YEAR LIMITED WARRANTY  
Maha Energy Corp. warrants this product against defects in materials and  
workmanship as follows: For the first three years from the date of  
purchase, Maha Energy Corp. will repair or replace the unit at its option  
without charge for parts or labor. After the indicated period of three years,  
the product owner is subject to pay for repair and parts fee.  
Time:  
This limited warranty is non-transferable. It does not cover damage or  
failures caused by or attributable to natural disaster, abuse, misuse,  
improper or abnormal usage, faulty installation, improper maintenance,  
lightning, or other incidences of excessive voltage, or any repairs or  
tampering by other than by Maha Energy Corp. or its Authorized Service  
Centers. This warranty will be voided if the serial number (if applicable),  
model number, or brand has been wholly or partially removed or erased.  
Repair or replacement under the terms of this warranty does not extend  
the duration of this warranty. Should this product be proven defective in  
workmanship or material, the consumer's sole remedies shall be such  
repair or replacement as provided by the terms of this warranty. Under no  
circumstances shall Maha Energy Corp. be liable for any loss or damage,  
direct, consequential, or incidental, arising out of the use of or inability to  
use this product. Some states do not allow limitations on how long an  
implied warranty lasts or the exclusions or limitations of incidental or  
consequential damages, so the above limitations or exclusions may not  
apply to the product owner. This warranty gives the product owner  
specific legal rights. The product owner may also have other rights, which  
vary from state to state.  
This is the number followed by the unit “MIN.” This is the time  
elapsed for the particular routine such as charging, discharging or  
rest in the program.  
Voltage:  
This is the number followed by the unit “VOLT.” It represents the  
offline battery voltage. If you compare this with a voltmeter while  
charging, the values will not match as a voltmeter is unable to  
measure the offline battery voltage.  
To obtain warranty service, contact Maha Energy Corp. Service  
Department at 1-800-376-9992 or 1-909-392-1568. When returning the  
unit for warranty service, the product owner must obtain a return  
merchandise authorization number from a service representative. In  
addition, please include a copy of the sales receipt, a brief description of  
the symptoms, name, address, and phone number. Then deliver or ship  
the product, postage and shipping costs prepaid (insurance suggested),  
to:  
Maha Energy Corp. Service Department  
1647 Yeager Ave. La Verne, CA 91750  
All warranty repair or replacement will be returned to the customer using  
Ground service. If a faster carrier method is requested, the product owner  
must pay the cost difference over the Ground service charge. Maha  
Energy Corp. is not liable for products lost or damaged unit during  
shipment.  
At any given time during the program, the charger will either be  
charging, discharging or resting. The LCD displays the action in  
black boxes containing CHARGE, DISCHG, or REST.  
8. If CYCLE mode is selected, it is also possible to review the battery  
capacity of finished cycle after the completion of the first cycle.  
Press the UP or DOWN key while the active slot is in the cycle mode  
will display the discharge capacity for that cycle. The LCD will also  
display “CYCLE HISTORY.”  
9. When the program for a slot is completed, DONE will displayed to  
the right of the bank number. With the exception of DISCHARGE  
mode, topoff charge and trickle charge (continuous) will be applied.  
Available At:  
Thomas Distributing  
Tel: 1-800-821-2769  
For CHARGE mode, the total charged capacity will be displayed.  
For REFRESH & ANALYZE, BREAK-IN, DISCHARGE mode, the  
total discharge capacity will be displayed. “AVAILABLE CAPACITY”  
icon will also be shown.  
MAHA ENERGY CORP.  
Copyrighted ® 1998-2007 Maha Energy Corp.  
PRINTED IN TAIWAN A03-3713420-496  
 

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