Powerex MH-C490F User Manual
CHARGING INSTRUCTIONS
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For new NiMH batteries, it is necessary to cycle them three to five times
before they reach peak performance. Battery cycling can be achieved by
using the batteries completely and recharging them.
MH-C490F
Stealth 2 Hour / 9 Volt / 4 Bank Charge
Thank you for purchasing the PowerEx battery charger.
Read these instructions carefully and thoroughly before
operating this unit.
IMPORTANT SAFETY INSTRUCTIONS. READ AND
SAVE THESE INSTRUCTIONS.
GENERAL PRECAUTIONS
• Do not charge battery chemistry other than NiMH.
• ––When not using with Maha 9V batteries, verify batteries can accept
90mA quick charge. Batteries incapable of accepting a rapid charge
may explode and result in fire.
• Refer to illustration under charging instructions for insertion of
batteries.
• Do not expose the unit to rain or moisture due to risk of fire.
• For indoor use only.
• Do not operate the charger if it appears damaged in any way. Always
use the supplied AC adapter.
• Do not allow the battery terminals to become shorted.
• To reduce the risk of damage to the AC power adapter, always pull by
connector.
When using at home / office
1. Plug in the supplied AC power adapter into an outlet matching the
input requirement indicated on the label, without the charger
attached.
2. Connect the charger (without batteries installed) to the connector-end
of the AC power adapter.
3. Place the batteries into the charger. You may put 1 to 4 batteries in the
charger. Use only 7.2V, 8.4V or 9.6V NiMH batteries. You may mix
different voltage of batteries in the charger. See illustration below for
proper polarity and insertion instruction.
FEATURES & SPECIFICATIONS
• Charges one to four 9V NiMH batteries in around two hours.
• FLEX pulse charging conditions and enhances battery performance
during charging.
• Microprocessor controlled rapid charge with automatic trickle charge.
• Compatible with 7.2V, 8.4V and 9.6V batteries.
Rapid Charge Current: 70-90mA
Trickle Charge Current: 5mA
Charging Cell Configuration: One to four 9V batteries (7.2V, 8.4V or
9.6V)
Microprocessor: Four independent circuits, capable of
charging batteries simultaneously. –
deltaV based.
Charge Time: 120-160 minutes*
Input Voltage: 12VDC 1000mA
• Charge time will vary depending upon the brand, capacity, and
condition of batteries being charged.
WARNING: NEVER USE ALKALINE OR RECHARGEABLE
ALKALINE BATTERIES.
It is possible for certain batteries to be charged slightly slower
than others. It is normal for certain banks to finish faster or
slower than others.
Indicator Conditio n Meaning
RED Rapid Charging
GREEN Charge Completed
FLASHING RED Bad Battery
4. When the lights turn green, the batteries are ready to be used. If left
inside the charger, the batteries will be trickle charged.
When using in a vehicle
(Optional Car Kit Required)
Make sure your vehicle’s output voltage is between 9V to 15V, and is
capable of supporting a 700mA current drain. If you have any
concerns regarding this, refer to your vehicle owner’s manual.
1. Plug in the supplied cigarette lighter adapter into your vehicle’s
cigarette lighter, without the charger attached. Verify that the green
power LED on the cigarette lighter adapter is illuminated. If LED does
not light, your vehicle may need to be running in order to energize the
cigarette lighter or the inline fuse may need to be replaced.
2. Connect the charger to the connector-end of the cigarette lighter
adapter.
3. Follow steps 3-5 on the section “When using at home / office”.
Manufactured By:
MAHA ENERGY CORP.
1647 Yeager Ave. La Verne, CA 91750
Tel: 909-392-1568
World Wide Web: http://www.mahaenergy.com/
Copyrighted ® 1998-2003 Maha Energy Corp.
PRINTED IN TAIWAN DOC ID: 3713304-369
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