R40 R40E T20 T30 laptop battery tester charger discharger
1. test
2. charge
3. discharge

RFNT3 Laptop Battery Tester

Function:
*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.
*Test: Testing time is 30 seconds and the purpose is to check both the charging and discharging performances.
*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.
*Monitoring: Battery information can be monitored via three windows.
*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.

Features:

*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:

*Dimensions: 201 x 99 x 35 mm
*Weight: 333g
*Adapter
  Input: AC 100 ~ 240 V
  Output: DC 24V  2.65A
*Display mode
  Segment LCD with white backlight + LED in red and green
*Discharging mode
  Constant current discharge for double loads, inner load & external load
  Maximum charging current: 3A
*Charging mode
  Constant current  + constant voltage. Active charge and pre-charge are available according to different battery voltage.
*Charging current
There is a connection between current intensity and charge mode. The details as below:    
Nominal capacity     Pre-charge current   Fast charge current   End charge current
>6000             400 mA     2500 mA     300 mA  
>3500             400 mA     2000 mA     200 mA  
else             200 mA     1000 mA     100 mA  

*Standby power consumption
  <1W
*Working temperature
  0~40°C            20%-90% RH (Non condensation)
*Storage temperature
 -20°C~65°C    10%-95% RH (Non condensation)
*Maximum charging time
Time limit for charging:     8.8h          
Time limit for discharging:     8.8h          
Time limit for testing:       20s + 10s = chg + disc    
Time limit for capacity correction:    8.8h + 20s + 8.8h = disc + pause + chg
Auto quit time for function menu:   10s 

  LCD display to show the parameters

Test and ChargeDischarge with load

Connectors, use these for different battery models

 Packing Box