laptop battery tester

الوصف

Summary

RFNT2 is a battery testing device with two channels, having the

features below:

1. Supporting two intelligent batteries at once

2. With charge and test functions

3. LCD for displaying battery information

4. LED for indicating working status 

5. Pre-charge, fast charge and constant voltage charge for

charging stages 

6. With a USB port for connecting with computers, master machine

can monitoring and control  slave machine

Basic Parameters

Dimensions: **1 x *9 x *5 mm 

Weight: **3g

Adapter Input: AC **0 ~ **0 V Output: DC *9V 4.*4A

Display mode

Segment LCD with white backlight + LED in red and green

Charging mode

Constant current + constant voltage

Charging current

Maximum charging current of each channel: 2.5A

Standby power consumption≤1W

Working temperature

0~*0°C *0%**0% RH (Non condensation)

Storage temperature

**0°C~*5°C *0%**5% RH (Non condensation)

Maximum charging time: 8 hours

Function Introduction

Charge

Two channels can work independently and serve two intelligent

batteries separately. Active, pre-charge, constant current and

constant voltage are the stages of charging mode. The initial

charging mode depends on the battery voltage, so active and pre-

charge don't happen to every batteries. 

Test

Testing time is *0seconds and the purpose is to check both the

charging and discharging performances. After finishing test, LED

flickers with green color and LCD reports the test result.

Normal: Test OK Shown on LCD

Abnormal: Test NG Shown on LCD 

Possible causes and solutions for the abnormal: 

1) Cause: battery voltage is too low to discharge

Solution: try to charge the battery to raise voltage

2) Cause: remaining capacity is too full to charge any more

Solution: try to discharge the battery to reduce the remaining
capacity

3) Bad contact of battery connecting wires

4) Damaged battery 

5) Tester trouble

Online Functions

Tester can be connected with master machine via a USB port.

Users can monitor, control and set parameters via Battery Manager

software in the master machine. 

Monitoring

Battery information can be monitored via three windows.

1. Home screen

Battery bar and brief information can be read on home screen.

2. Battery detail information window

Show smart battery data in real time and the data can be saved

and printed in image format.

3. Battery graph window

Voltage, current and capacity are traced in curves. 

Control

Battery Manager can control slave machine completely. Right-click

menu on the battery bar includes the related commands.

Parameters

Users can set working parameters via set parameter window in

Battery Manager.

Others

1. Active cooling

2. Active batteries of zero voltage

When a battery is deep discharged, the discharge protection circuit

will start up and the voltage in the battery connector will become

zero voltage. In this case, an appropriate voltage should be

supplied to active the battery.

3. Battery identification

Battery information can be read from battery management chip

after establishing communication. 

4. Intelligent protection

Against over-current, over-voltage, over-charge, over-heat and

short circuit.

5. Suitable for almost all laptop batteries, above *5%

Accessories

1).1 x adapter

2). 1 x USB cord

3). 1 x CD

4). *3 x connectors

5). *0 x cables

 6). *0 x jumpers