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Test all types of Laptop Battery, includes charge function and testing software.
Includes charger, manuals on CD, 12 different types of connectors and cables.
Description: external laptop battery tester charger discharger 1. test 2. charge 3. discharge external laptop battery tester charger dischargerSummaryRFNT3 is a multi-function battery testing device, having the features below:with one channel, supporting one intelligent batterySupporting charge, discharge, test, capacity correction, charge / discharge 50% capacityLCD for displaying battery informationLED for indicating working statusWith charge-key, discharge-key, backlight-key and function-keyPre-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 dischargingWith a USB port for connecting with computers, master machine can monitoring and control slave machineBasic ParametersAdapter Input: AC 100 ~ 240 V Output: DC 24V 2.65ADischarging modeConstant current discharge for double loads, inner load & external loadCharging modeConstant 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.Constant current:Tester goes into fast charge status when voltage of single cell > 3000mA & < 4200mA. Fast charge current relates to the battery nominal capacity.At the end of charge:The current intensity begins to decrease when tester goes into constant voltage charge status. It stops charging when the capacity reaches 100% and the current intensity less than 1A or the current intensity reduce to the end charge current.Charging currentThere 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 400mA 2500mA 300mA??"3500 400mA 2000mA 200mAElse 200mA 1000mA 100mAFunction IntroductionChargeActive, 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. For charging mode and current, please refer to the paragraphs of charging mode and charging current on page 2 & 3.Tester will stop charging if one of the conditions below was met.1) Remaining capacity ??" 99% & current intensity = 02) Remaining capacity = full charge capacity3) Current intensity reduce to end charge current when constant voltage charge4) Remaining capacity reach up the set valueDischargeConstant current discharge for double loadsInner load: 0 ~ 1000mA, adjustable continuously via Battery ManagerExternal load: 0mA, 500mA, 1000mA, 1500mA, 2000mA, five gears with dip switches offeredTester will stop discharging if one of the conditions below is met.1) Remaining capacity ??" set value2) Voltage ??" set value3) Current intensity reduce to zeroRemarks: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.TestTesting 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 LCDAbnormal: Test NG Shown on LCDPossible causes and solutions for the abnormal:1) Cause: battery voltage is too low to discharge Solution: try to charge the battery to raise voltage2) Cause: remaining capacity is too full to charge any more Solution: try to discharge the battery to reduce the remaining capacity3) Bad contact of battery connecting wires4) Damaged battery5) Tester troubleCapacity CorrectionThe 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.Remarks:Discharging current can be set via Battery Manager. Deep discharge will cause a battery losing communication with tester, so battery dropping phenomenon may happen in the discharging process if the end capacity and voltage are set too low. In such a case, active charge will make the battery work again.50% CapacityCD50%: charge firstly, and then discharge to 50% capacityDC50%: discharge firstly, and then charge to 50% capacityOnline FunctionsTester 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.