Maha Energy Powerex MH-C9000 User Manual

PRINTED IN TAIWAN A03-3713420-496
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 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.
• 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.
• Do not allow the unit to be exposed to direct sunlight. Operate in
well-ventilated area. Do not place unit on the carpet.
• 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.
• Use only the supplied adapter or optional regional and car adapter
offered by Maha Energy. Using third party accessories voids the
product warranty.
FEATURES & SPECIFICATIONS
• Four independent slots for AA or AAA NiMH batteries.
• Backlit LCD display.
• 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.
Charging Current:
Programmable from 0.2A to 2.0A in
increments of 0.1A
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)
Supported Capacity*:
100 to 20,000mAh
Charger Input Power:
12V 2.0A
Adapter Input:
100-240V 50/60Hz
* Always ensure that the batteries can accept the programmed rates.
GENERAL BATTERY EDUCATION
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.
Choosing the right charging & discharging rate
Charging at a rate below 0.33C and above 1.0C is not
recommended.
Charging too slow may prevent the charger from terminating correctly.
Charging too fast may damage the battery.
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
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.
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.
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.
Battery forming can be performed using the Break-In mode.
MH-C9000
WizardOne Charger-Analyzer

Maha Energy Powerex MH-C9000 Specifications

General

Brand	Maha Energy
Model	Powerex MH-C9000
Category	Battery Charger
Language	English

Summary

General Precautions

Safety and Usage Guidelines

Essential safety and usage rules for the charger, covering battery compatibility, environmental exposure, and handling precautions.

Features and Specifications

Product Overview and Capabilities

Details key features like independent slots, LCD display, multiple operation modes, and selectable charge/discharge currents.

General Battery Education

Battery Charging and Performance Concepts

Explains battery capacity ratings (C-rating), optimal charging rates, battery matching, and the battery forming process.

Modes of Operation

Charge Mode

Recharges batteries at a selected rate without capacity determination, suitable for frequently used batteries.

Refresh & Analyze Mode

Performs a recharge-discharge cycle to determine battery capacity and assess performance degradation.

Break-In Mode

Applies a slow charge-discharge-charge cycle for new or degraded batteries, known as 'Forming Charge'.

Discharge Mode

Discharges the battery at a selected rate to measure stored charge, without subsequent recharging.

Cycle Mode

Performs multiple charge-discharge cycles for battery conditioning and performance testing.

Operations

Connecting Power and Inserting Batteries

Guide to connecting the charger to a power source and properly inserting AA or AAA batteries.

Selecting Operation Modes

Instructions on navigating menus and selecting desired modes like Charge, Refresh & Analyze, Break-In, Discharge, and Cycle.

Setting Charge and Discharge Rates

Procedure for programming specific charging and discharging currents for selected modes.

Battery Capacity and Cycle Settings

Steps for setting battery capacity for Break-In mode and the number of cycles for Cycle mode.

Interpreting Display Information

Explanation of displayed data such as current, capacity, time, voltage, and status indicators like 'DONE' or 'HI 6X'.

Three-Year Limited Warranty

Warranty Coverage and Limitations

Details the three-year warranty, covered defects, exclusions, and conditions for repair or replacement.

Obtaining Warranty Service

Instructions on how to contact Maha Energy Corp. for warranty claims, including required information and shipping procedures.