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2 Hour Charger

 

Instruction Manual 

Model No.: CH-3988R 

 

This Charger designed to charge 2 or 4

 

AA or AAA size rechargeable 

batteries for home or travel.   
Please note that this charger must not be used for Alkaline, Carbon 
Zinc, Lithium or any kind of battery other than Ni-MH. This charger 
will charge your high capacity 2300mah batteries in 2 hours.

 

Charging time may vary based on different capacities. 

 

Charger Descriptions: 

 

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Charging controlled by special intelligent MCU, supply 
optimal charging current to prolong battery cycle life and 
accelerate charging speed. 

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Interior switching mode adaptor could accept worldwide AC 
power source (Input: AC 100V-240V 50/60Hz) and is suitable 
for global travel. 

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Mechanical structure avoids size AA & AAA mix. 

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LED display for rapid charge / trickle charge / default mode. 

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Reverse-polarity protection.   

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2 or 4 batteries can be charged at any one time 

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DC car cord are available 

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Foldable US Plug. 

 

Safety features 

 

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-dV cut off function 

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Max. voltage cut off function 

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Safety timer cut off function 

 

Usage Instructions:

 

 

Step 1. Load batteries into charger and select button 

1.It can charge 2 or 4 pcs of AA/AAA NiMH rechargeable batteries. 
AA and AAA batteries cannot be charged at the same time. 

2.Put battery in the charger as per the”+” “-“ indication. 
 
3.If you want to charger 4 pcs AA/AAA batteries, put 4 pcs battery 
in charger and slide the battery number button to the “4” 
position.(Fig.1) 
 

       

 

Fig 1 

 
4.If your want to charge 2 batteries, put 2 pcs batteries in the left two 

compartments and slide the battery number button to the “2” 
position.(Fig.2) 

   

         

 

 

Fig 2 

Step 2. Plug in the charger

   

1.

 

Connect the charger input plug into an AC outlet. 

 

 
 

Step 3. Charging start and LED indication 

1.The red LED on the charger lights up to indicate the charger 

power is on. 

2. When you place your batteries into the charger, the red light 

will continue to be lit. 

 

The LED indicating list 

Status of LED 

Status of charger 

Red LED 

(Power 

indicator) 

Green LED 

(Charging indicator) 

 

Solid Off 

 Power On  

(default mode)

 

 

     Solid 

Blinking 

Charging (when 

batteries are inserted 

correctly) 

Solid Solid 

Fully 

Charged

 

Solid Rapid 

Blinking  Alkaline 

 

Off Off 

Power 

off 

 

Note

Under fully charged status, the charger is in trickle mode

 

but the batteries are ready for use and could be taken out. 

The charger will not supply charging current under default 

mode, the default mode is due to the below cases: 

A

No battery put inside charger, or the “2/4” optional 

button is not in correct position. 

B

Battery connected with reverse-polarity. 

 

Step 4. End of Charging: 
   

1.When the red LED is solid and the green LED is blinking, it 

indicates the batteries are fully charged,  and the batteries 
could be taken out and are ready to use. 

2.

 R

emove the charger from your AC outlet. 

3. Follow the process from step 1 if you want to start another 

charge.

 

Note: proposed working temperature for charger: 20

-25

.

 

 

Important Safety Instructions: 

 

1.

 

Before charging, read usage instructions. 

2.

 

This charger is designed for indoor use only, do not expose to 
damp or rain. 

3.

 

This charger is intended to charge AA/AAA 
Nickel-metal-hydride(Ni-MH) battery only. Attempting to 
charge any other types of batteries may cause personal injury 
and damage. 

4.

 

Do not mix AA/AAA, or Alkaline/Ni-MH, or different 
capacity batteries together to charge. 

5.

 

Recharge only one type of battery at each time. 

6.

 

Remove adaptor AC input plug from AC mains when not in 
use. 

7.

 

Never use an extension cord or any attachment not 
recommended by manufacturer, otherwise this may result in a 
risk of fire, electric shock or injury to persons. 

8.

 

Do not operate the charger if it has been subjected to shock or 
damage. Take it to a qualified service-man for repair. Not 
recommended for use by children. 

9.

 

Do not disassemble the charger. Incorrect reassemble may 
result in a risk of electric shock or fire. Unplug the charger 
from outlet before attempting any maintenance of cleaning.

 

 

 

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