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UM24 for APP USB 2.0 Color LCD Display Tester Voltmeter Ammeter Battery Capacity Tester Voltage Current Meter Cable Resistance Tester UM24 for APP USB 2.0 Color LCD Display Tester Voltmeter Ammeter Battery Capacity Tester Voltage Current Meter Cable Resistance Tester Description: UM24 is a multifunctional USB test meter. It can test and display voltage/current/power/capacity/energy detection, fast charging identification, data storage, etc. Features: 1>. 1.44-inch RGB LCD display. ... $15.39
$21.99
SKU: 13232
$15.39
$21.99

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XY-MUP DC-DC USB Step UP/Down Power Supply Module LCD Temperature Display Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester with Shell Button Control XY-MUP DC-DC USB Step UP/Down Power Supply Module LCD Temperature Display Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester with Shell Button Control 1.Description:     XY-MUP is an instrument with integrated buck-boost power supply module and multi-function voltage ammeter and temperature display module.     In ‘PER’ work mode,it can be used as... $8.39
$11.99
SKU: 13492
$8.39
$11.99

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TEC-06 Battery Capacity Tester Module Power Supply Module Mini USB 16W Electronic Load Max 500AH LED Display with Fan TEC-06 Battery Capacity Tester Module Power Supply Module Mini USB 16W Electronic Load Max 500AH LED Display with Fan Description: TEC-06 is constant current electronic load.It uses high-precision DAC loop control technology to control output current for power supply or battery. So that the current does not change with the voltage changes. It is a l... $12.59
$17.99
SKU: 12449
$12.59
$17.99

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DC-DC USB Step UP Step Down Power Module Adjustable Boost Buck Converter Battery Capacity Tester 5V to 3.3V 9V 12V 24V DC-DC USB Step UP Step Down Power Module Adjustable Boost Buck Converter Battery Capacity Tester 5V to 3.3V 9V 12V 24V 1.Description:     XY-LUP is an instrument with integrated buck-boost power supply module and multi-function voltage ammeter.     In ‘PER’ work mode,it can be used as buck-boost power supply module... $4.19
$5.99
SKU: 13416
$4.19
$5.99

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10PCS TP4056 1A Li-ion Lithium Battery Charging Module Charging Board Charger with Micro USB 10PCS TP4056 1A Li-ion Lithium Battery Charging Module Charging Board Charger with Micro USB Description: 1. Charge Module: Linear charging 2. Current: 1A adjustable 3. Charge Precision: 1.5% 4. Input Voltage: 4.5V-5.5V 5. Full Charge Voltage: 4.2V 6. Led Indicator: Red is charging; Blue is full charged 7. Input In... $2.79
$3.99
SKU: 12620
$2.79
$3.99

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5pcs 5V 1A Micro USB Lithium Battery Charging Board TP4056 Charger Module 5pcs 5V 1A Micro USB Lithium Battery Charging Board TP4056 Charger Module Product Introduction: 1.Input Voltage:5V 2.Charging Cut-Off Voltage:4.2V±1% 3.Maximum Charging Current:1000mA 4.Overdischarging Protection Voltage:2.5V 5.Overcurret Protection Current:3A 6.Board Size:2.6*1.7cm Not... $2.72
$3.89
SKU: 12734
$2.72
$3.89

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5V 1A 2A Double USB Output Power Bank Battery Charger Protection Board Step Up Boost Converter Module with LED Lamp Power Capacity Indicator 5V 1A 2A Double USB Output Power Bank Battery Charger Protection Board Step Up Boost Converter Module with LED Lamp Power Capacity Indicator Product Introduction: 1.Input Parameter:5v/1A 2.Input Interface:V8 interface  micro USB 3.Output Parameter: double USB output:5v/2A    4.Conversion Rate:90%  average Safe Design: 1.Power has designs of ... $1.81
$2.59
SKU: 8903
$1.81
$2.59

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Dual USB 5V 2.1A 1A Mobile Power Bank Charger Boost Converter Step Up Module LCD Display Board for 18650 Battery DIY Dual USB 5V 2.1A 1A Mobile Power Bank Charger Boost Converter Step Up Module LCD Display Board for 18650 Battery DIY Description: Model: K6-PCBA  Input: 5V1.2A  Output: 5V1A,5V2.1A  Battery voltage range: 3.7V+/-0.5V  Capacity display range:1%-100%  Size: 65*22*15mm   Notice: The product do... $4.89
$6.99
SKU: 6876
$4.89
$6.99

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DC8-30V Battery Capacity Monitor with Voltage Display, 2-USB Port Voltage and Power Display Meter, Suitable for Car/Boats/Electric Bicycle DC8-30V Battery Capacity Monitor with Voltage Display, 2-USB Port Voltage and Power Display Meter, Suitable for Car/Boats/Electric Bicycle 1.Description:   It is a DC8-30V Battery Capacity Monitor with USB/Voltage Display which can supports Lithium iron phosphate battery, lead acid battery and ternary lithium battery, also can support multiple batteries in series. ... $5.17
$6.99
SKU: GY21104-1
$5.17
$6.99

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3.7V 4.2V to 5V 18650 Lithium Battery Charging Module USB Boost Board Mobile Power Board DIY 3.7V 4.2V to 5V 18650 Lithium Battery Charging Module USB Boost Board Mobile Power Board DIY 1.Description:   1>.Ultra small size, almost all mobile power supply enclosures can be easily installed   2>.Support lithium battery undervoltage protection and output short circuit protection   3>.Ultra low... $3.75
$5.35
SKU: GY21042-1
$3.75
$5.35

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15W USB Electronic Load Tester Aging Discharger Battery Capacity Tester 15W USB Electronic Load Tester Aging Discharger Battery Capacity Tester 1.Description:   LC-USB-Load-15W is a electronic load, the purpose of constant current input is achieved through the power consumption of the transistor, the heat of the heater and the fan. 2.Feature:   1>.Adjust po... $6.29
$8.99
SKU: GY20690
$6.29
$8.99

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500MA Solar Charging Module, 6A USB Lithium Battery Charging Board, CN3065 MINI Charging Module 500MA Solar Charging Module, 6A USB Lithium Battery Charging Board, CN3065 MINI Charging Module 1.Description:   It is a lithium battery solar charging board.   It uses CN3065 chip, a single-cell lithium battery charging management chip used for solar panel power supply.   The device includes a power transistor... $2.79
$3.99
SKU: GY19589
$2.79
$3.99

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Lithium Battery Capacity Indicator Voltmeter Voltage Tester 5V 2A Dual USB Output 12.6V for 3pcs 3.7V 4.2V Lithium Batteries Lithium Battery Capacity Indicator Voltmeter Voltage Tester 5V 2A Dual USB Output 12.6V for 3pcs 3.7V 4.2V Lithium Batteries 1.Description:   It is a dual display Lithium Battery Capacity Indicator.It can measure 3.7V or 4.2V battery and support dual USB output.   2.Feature:   1>.Dual display   2>.Dual USB output ... $4.43
$5.99
SKU: 15192
$4.43
$5.99

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5V USB Multi-function Meter LCD Voltmeter Ammeter Battery Capacity Tester Power Tester Temperature Display 5V USB Multi-function Meter LCD Voltmeter Ammeter Battery Capacity Tester Power Tester Temperature Display 1.Description:     XY-UDT is a multi-function voltage-ammeter. It can work in three mode: Power Supply Mode,Voltage-Ammeter Mode,PWM Mode.Its main function is to output voltage as a constant voltage constant current source ... $27.59 SKU: 15078
$27.59

Lithium Battery Charging Board 5V 2A LCD Display Dual USB Output Charger Module DIY Charger Lithium Battery Charging Board 5V 2A LCD Display Dual USB Output Charger Module DIY Charger Parameter:   1>.Input charging voltage: DC 5V 1A   2>.Input battery voltage:DC 3.7V-4.2V Polymer Rechargeable Lithium Battery   4>.Output channel:2 Channel   5>.Output voltage:5V2.1A/5V1A ... $4.89
$6.99
SKU: 14045
$4.89
$6.99

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5V USB Multi-function Meter LCD Voltmeter Ammeter Battery Capacity Tester Power Tester Temperature Display 5V USB Multi-function Meter LCD Voltmeter Ammeter Battery Capacity Tester Power Tester Temperature Display 1.Description:     This product is a multi-function voltage-ammeter. The main function of this product is to measure the voltage,current,capacity,energy,time,power,temperature,fast charge protocol,load impedance and display... $6.99 SKU: 13787
$6.99

DC-DC USB Step UP/Down Power Supply Module LCD Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester Temperature Display DC-DC USB Step UP/Down Power Supply Module LCD Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester Temperature Display 1.Description:     XY-DUPH is an instrument with integrated buck-boost power supply module and multi-function voltage ammeter and temperature display module.     In ‘PER’ work mode,it can be used a... $4.68
$6.69
SKU: 13493
$4.68
$6.69

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DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter LCD Voltmeter Ammeter Battery Capacity Tester with Shell Temperature Display DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter LCD Voltmeter Ammeter Battery Capacity Tester with Shell Temperature Display 1.Description:     XY-MUPH is an instrument with integrated buck-boost power supply module and multi-function voltage ammeter and temperature display module.     In ‘PER’ work mode,it can be used a... $5.59
$7.99
SKU: 13491
$5.59
$7.99

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5pcs 5V 1A Mini USB 18650 Lithium Battery Charging Board Charger Protection 5pcs 5V 1A Mini USB 18650 Lithium Battery Charging Board Charger Protection Product Introduction: 1.Input Voltage:5V 2.Charging Cut-Off Voltage:4.2V±1% 3.Maximum Charging Current:1000mA 4.Overdischarging Protection Voltage:2.5V 5.Overcurret Protection Current:3A 6.Board Size:2.6*1.7cm Not... $2.51
$3.59
SKU: 12735
$2.51
$3.59

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5pcs ICStation Micro USB 1A Battery Charging Module Power Supply Module 5pcs ICStation Micro USB 1A Battery Charging Module Power Supply Module Features: 1.High quality charging Chip TP4056, simple circuit, good protective value, high charging precision. 2.Complete mechanical automation processing, High reliability. 3.Automaticlly adjust the output current from 100 t... $1.95
$2.79
SKU: 12653
$1.95
$2.79

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