Portable Laptop Battery Tester with Function Charge Discharge Test Capacity Correction RFNT3 Portable Laptop Battery Tester with Function Charge Discharge Test Capacity Correction RFNT3 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 informaiton *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 0~40C 20%-90% RH (Non condensation) *Storage temperature -20C~65C 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 _x000D_