Product Features

●    Charging function: Four charge slots are allowed to use respectively or with optional combination at will, AA/AAA batteries can be charged in each slot at the same time for convenient operation.

●    Protection battery polarity from reverse installation: due to special shell structure, it can avoid battery polarity in reversed direction against damage of battery and charger.

●    MCU control: Mirco-computer unit is abal to identify automatically non-rechargeable batteries, it also restores long-timed unused battery and offers multiple protection during charge with negative delta V(-dv) cut-off, shut-off for temperature protection, safety time-out for purpose of full and safty charge.

●    Refusal for non-rechargeable battery: identify the non-rechargeable battery and defective battery with blinking of red LED and charge stops

●    Charging Indicators 

     Red LED on: Charging

     Green LED on :Fully charged and trickle charging

      Red LED Flashing : Defective batteries or Non-rechargeable battery

-                                               Short circuit

1.1 Battery Type

Suitable for 1-4 AA/AAA Ni-MH/Ni-Cd batteries.

1.2 -dv cut off

The high sensitivity -dv detector stops charging once it detects the batteries are fully charged.

1.3 Timer Control Protection

The charger automatically detects the correct charging time and the main charging current changes to a trickle current.  The charger always shuts off the main charging current and switches to trickle charge after about 7 hours.

1.4 Over Temperature Protection

Protect the batteries from being damaged by overheating  (55℃)

1.5 Defective and Non-rechargeable battery detection

This function protects the charger if you attempt to charge defective or non-rechargeable batteries.  Charging alkaline batteries is not recommended and may cause battery fluid leakage. 

1.6 Reverse Polarity Protection

The electrical circuit protects the charger and batteries from being damaged by  incorrectly installed batteries.

1.7 Over Current Protection

Maintains a constant charging current during the charging cycle.  

1.8 Low Battery Leakage Current

If the battery charger is not connected to input power and left in the charger, the charger will discharge the batteries using a pre-determined current. 

1.9 Trickle Charge After Full Charge

After batteries are fully charged, a small current will be applied to the batteries.  

1.10 Short Circuit Protection

If one attempts to charge shorted batteries, the indicator will flash alternately

1.11 Charging Indicators 

Red LED on      Charging

Green LED on :Fully charged and trickle charging.

Red LED Flashing :

-         Defective batteries or Non-rechargeable battery

-         Short circuit

1.12 Pulse Charging Feature

This feature uses a precisely regulated current to maximize the charging efficiency, control battery temperature and increase battery life.

2 Electrical Performance and Tests

2.1 Charging Unit

2.1.1 Input

Input voltage 100~240V AC 50/60Hz  10W  MAX

2.1.2 Charging current

AA*4:   500mA±20% (AA*2 1000 mA±20%)

AAA*4: 300mA±20% (AAA*2 600 mA±20%)

2.1.3 Trickle Charge current

AA: 50mA ±10%

AAA: 30mA ±10%

2.1.4 Charging voltage

1.4VDC x 4 channels

2.1.5 Hi-pot Test

Apply AC3750V for 1 minute, leakage current must be less than 5mA.

2.1.6 Insulation Resistance

           input-output:≥100MΩ at 500VDC

Inspections of all products

-         Charging voltages

-         Charging current

-         LED indicators

-         Foreign object/sound shock

-         Polarity of charging channel

-         Surface

-         Charge AA or AAA at least once (@25 ^oC)

-         Hi-pot test – for Adapter

6.2 Inspections of selected products

-         Over current protection

-         Over temperature

-         Drop test