portable mini laptop battery tester has charge discharge function

portable mini laptop battery tester has charge discharge function
1. test
2. charge
3. discharge
portable mini laptop battery tester has charge discharge function

Summary

RFNT3 is a multi-function battery testing device, having the features below:
with one channel, supporting one intelligent battery
Supporting charge, discharge, test, capacity correction, charge / discharge 50% capacity
LCD for displaying battery information
LED for indicating working status
With charge-key, discharge-key, backlight-key and function-key
Pre-charge, fast charge and constant voltage charge for charging stages and the variation range of the values of the constant current and the constant voltage is less than 1%
Constant current for discharging
With a USB port for connecting with computers, master machine can monitoring and control slave machine
Basic Parameters
Adapte
r Input: AC 100 ~ 240 V Output: DC 24V 2.65A
Discharging mode
Constant current discharge for double loads, inner load & external load
Charging mode
Constant current and constant voltages are the main mode. Active charge and pre-charge are available according to different battery voltage.
Active charge:
Tester may not recognize 0V-battery. Users should press the charge key to start up the active charge function. Being activated and going to normal charging status, when the battery establishes communication with the tester.
Charging current
There is a connection between current intensity and charge mode.


Function Introduction

Charge
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.

Discharge
Constant current discharge for double loads
Inner load: 0 ~ 1000mA, adjustable continuously via Battery Manager
External load: 0mA, 500mA, 1000mA, 1500mA, 2000mA, five gears with dip switches offered
Tester will stop discharging if one of the conditions below is met.
1) Remaining capacity ≤ set value
2) Voltage ≤ set value
3) Current intensity reduce to zero
Remarks:
Many batteries can not measure exact current intensity, which cause an else current value appears after you set a value. However, the actual discharging current is the same with your set value.

Test
Testing time is 12 seconds 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

Capacity Correction
The battery capacity value in the battery management chip will different from the actual capacity after a battery goes through many recycling cycles. It will affect the use of the battery when the difference reaches a certain degree. Capacity correction is to deep discharge a battery and then fully charge, which will correct the capacity value in the battery management chip.


50% Capacity

CD50%: charge firstly, and then discharge to 50% capacity
DC50%: discharge firstly, and then charge to 50% capacity

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.