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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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Power-OFF Protection Module Automatic Switching Module UPS Emergency Cut-off Battery Power Supply 12V to 48V Control Board Power-OFF Protection Module Automatic Switching Module UPS Emergency Cut-off Battery Power Supply 12V to 48V Control Board Description: This is a power outage automatic switch module for 12V-48V battery. Parameters: No. Parameter Value 1 Product model X804 2... $3.49
$4.99
SKU: 13145
$3.49
$4.99

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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

31

Type-C Power Supply Module for MCU Controller 18650 Battery Charge Discharge 1.8V 3.3V 5V Type-C Power Supply Module for MCU Controller 18650 Battery Charge Discharge 1.8V 3.3V 5V 1.Introduction: The module can be used to supply power to the microcontroller by inputting a 5V power supply through a 3.7V 18650 lithium battery and Type-C USB battery, and can also be used as a module with some suitable electrical pa... $4.89
$6.99
SKU: GY21298-1
$4.89
$6.99

31

Coulometer Meter Lead-acid Battery Voltage Monitor, Battery Capacity Monitor 30A Charge/Discharge Controller 6V-60V LCD Display Coulometer Meter Lead-acid Battery Voltage Monitor, Battery Capacity Monitor 30A Charge/Discharge Controller 6V-60V LCD Display 1.Description: ZK-CM30 is a high-precision current acquisition type battery meter, also known as a coulomb meter. It can display the real-time capacity and charging/discharging time of the battery in real-time, convenient for battery d... $9.09
$12.99
SKU: GY21257-1
$9.09
$12.99

30

Coulometer Lead-acid Battery Voltage Monitor, Battery Capacity Monitor, 30A Charge/Discharge Controller 6V-60V LCD Display Coulometer Lead-acid Battery Voltage Monitor, Battery Capacity Monitor, 30A Charge/Discharge Controller 6V-60V LCD Display 1.Description: ZK-J30 is a high-precision current acquisition type battery meter, also known as a coulomb meter with 30A relay switch control output. It can display the real-time capacity and charging/discharging time of the battery in... $11.19
$15.99
SKU: GY21224-1
$11.19
$15.99

31

DIY Kit FM Radio with Rechargeable 18650 Lithium Battery, 5W Adjustable 76-108MHz Wireless Receiver, FM Radio Kits for School Soldering Projects DIY Kit FM Radio with Rechargeable 18650 Lithium Battery, 5W Adjustable 76-108MHz Wireless Receiver, FM Radio Kits for School Soldering Projects 1.Introduction: It is an 76.0MHz-108.0MHz Wireless FM Radio Receiver DIY Kit with Rechargeable 18650 Lithium Battery. It has a built-in high-definition display LCD display screen which can clearly display the receiving frequency and it... $23.09
$32.99
SKU: GY21121-1
$23.09
$32.99

31

DC3.7V-120V Lead-acid Battery Voltage Monitor, Lithium Battery Charge Discharge Controller Protection Board DC3.7V-120V Lead-acid Battery Voltage Monitor, Lithium Battery Charge Discharge Controller Protection Board 1.Description:  The battery control charging module is a module that controls the power supply of the charger. It can realize automatic power off after the battery voltage exceeds the preset value. 2.Feature:  1>.Su... $5.25
$7.50
SKU: GY21163-1
$5.25
$7.50

30

DC6V-120V 30A Lead-acid Battery Voltage Monitor, Lithium Battery Charge Discharge Controller Protection Board DC6V-120V 30A Lead-acid Battery Voltage Monitor, Lithium Battery Charge Discharge Controller Protection Board 1.Description:  The battery charging control module is a module that controls the power supply of the charger. It can realize automatic power off after the battery voltage exceeds the preset value. 2.Feature:  1>.Su... $6.65
$9.50
SKU: GY21162-1
$6.65
$9.50

30

Battery Charge Controller, DC 1V-120V Battery Voltage Monitor Protector Lithium/Lead-Acid Battery Tester Battery Charge Controller, DC 1V-120V Battery Voltage Monitor Protector Lithium/Lead-Acid Battery Tester 1.Description:    It is a Battery Charge Controller DC 1V-120V Battery Voltage Monitor Protector Lithium/Lead-Acid Battery Tester. 2.Feature:   1>.Protect the battery from overcharge   2>.Start voltag... $9.09
$12.99
SKU: GY20772-1
$9.09
$12.99

30

DC8V-60V Battery Voltage Monitor, Lithium Battery Undervoltage Protector Discharge Controller Protection Board DC8V-60V Battery Voltage Monitor, Lithium Battery Undervoltage Protector Discharge Controller Protection Board 1.Description:  It is a battery discharge monitor. It can be used for discharge safety protection of various accumulators and lithium batteries. It can effectively protect the battery from over-discharge, thus affecting the servic... $11.19
$15.99
SKU: GY21138-1
$11.19
$15.99

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DC 0-99.9V Voltage Monitor Module Programmable Delay Relay Switch Controller Battery Protector DC 0-99.9V Voltage Monitor Module Programmable Delay Relay Switch Controller Battery Protector 1.Description: A30-U1 is a DC 99.9V Voltage Monitor Module with Delay. It can flexibly set detection upper and lower limit voltage values and set triggering conditions.It can realize functions such as voltage detection, overvoltage and... $14.99 SKU: GY21111-1
$14.99

DC 8V-100V Battery Capacity Monitor, Digital Battery Status Tester Meter, Battery Percentage Level Indicator Voltage Power Display DC 8V-100V Battery Capacity Monitor, Digital Battery Status Tester Meter, Battery Percentage Level Indicator Voltage Power Display PZEM-009 DC8V-100V Battery Capacity Monitor 1.Description:   PZEM-009 is a DC8V-100V Battery Capacity Monitor which can supports Lithium iron phosphate battery and ternary polymer lithium battery, also can support multiple bat... $8.39
$11.99
SKU: GY21110-1
$8.39
$11.99

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Battery Discharge Controller, DC 8V-86V Battery Voltage Monitor Protector Lithium/Lead-Acid Battery Tester Battery Discharge Controller, DC 8V-86V Battery Voltage Monitor Protector Lithium/Lead-Acid Battery Tester 1.Description:    It is a Battery Discharge Controller DC 8V-86V Battery Voltage Monitor Protector Lithium/Lead-Acid Battery Tester. 2.Feature:   1>.Battery overvoltage or undervoltage protection   2>... $10.49
$14.99
SKU: GY20771-1
$10.49
$14.99

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Battery Voltage Monitor, DC 12V Low Voltage Disconnect Switch Over Charge Discharge Controller Protection Board for DC 0-99.9V Lead Acid Lithium Battery Battery Voltage Monitor, DC 12V Low Voltage Disconnect Switch Over Charge Discharge Controller Protection Board for DC 0-99.9V Lead Acid Lithium Battery 1.Description:    It is a DC 0-99.9V Battery Charge Discharge Voltage Monitor. It can input voltage from DC 0-99.9V Battery with relay switch output which can controller DC or AC various equipment. It can set battery discharg... $5.59
$7.99
SKU: GY21059-1
$5.59
$7.99

31

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. ... $4.89
$6.99
SKU: GY21104-1
$4.89
$6.99

31

DIY Wooden Radio Kit, FM 88-108Mhz Radio with Battery Assembly Kit, STEM Kits for School Student Learning Teaching DIY Wooden Radio Kit, FM 88-108Mhz Radio with Battery Assembly Kit, STEM Kits for School Student Learning Teaching Description: 【SIMPLE ASSEMBLY】This kit doesn't require soldering!! The FM module is already soldered, you only need to assemble the battery, antenna, speaker and wooden cases. If you are a beginner or like to build projects, this r... $12.59
$17.99
SKU: GY21088-1
$12.59
$17.99

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Waterproof 0.56inch DC Digital Voltage Meter, DC5-130V Green LED Battery Volt Meter Gauge Voltage Display for Golf Cart Car, Boats Waterproof 0.56inch DC Digital Voltage Meter, DC5-130V Green LED Battery Volt Meter Gauge Voltage Display for Golf Cart Car, Boats 1.Description: It is a DC5-130V Waterproof Battery Voltage Meter. Its biggest feature is the use of internal injection molding design to achieve waterproof purposes, which is that it can penetrate water for a long time for use. 2.... $4.55
$6.50
SKU: GY21015-2
$4.55
$6.50

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Waterproof 0.56inch DC Digital Voltage Meter, DC5-130V Blue LED Battery Volt Meter Gauge Voltage Display for Golf Cart Car, Boats Waterproof 0.56inch DC Digital Voltage Meter, DC5-130V Blue LED Battery Volt Meter Gauge Voltage Display for Golf Cart Car, Boats 1.Description: It is a DC5-130V Waterproof Battery Voltage Meter. Its biggest feature is the use of internal injection molding design to achieve waterproof purposes, which is that it can penetrate water for a long time for use. 2.... $4.55
$6.50
SKU: GY21015-3
$4.55
$6.50

31

6A 3 Series 18650 Lithium Battery Protection Board 10.8V 11.1V 12V 12.6V Overcharge Overcurrent Protection Module 6A 3 Series 18650 Lithium Battery Protection Board 10.8V 11.1V 12V 12.6V Overcharge Overcurrent Protection Module 1.Description:    Equipped with over charging, over discharging, over current, and short circuit protection functions    Suitable for 3.7V lithium batteries of various capacities and shapes    Small si... $3.00
$4.29
SKU: GY21041-1
$3.00
$4.29

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