external 18650 battery chain power

Battery voltage U. Heating resistance R. Power equals U* Heating current I=; The maximum I (current) of the board design is 3A. MAX heating power 200W(100W OF B2A8S20P). Colour:As Shown Material:metal+plastic Package Contents: 1 x Smart battery... ... more

Features: 1.Designed for Legion Laptop: This cooling fan is the ideal replacement for Legion Y550 15 for Y7000P 2020 for R7000P 2020 laptop. 2.4Pin Power Connector: This DC5V cooling fan adopts 4 Pin power connector and heat dissipation function can be... ... more

Product Description: Input Power:AC100-240V 47/63HZ Output Power:4.2V/300mA Features: 1.100% brand new and high quality. 2.Home travel wall AC multi functional universal battery charger. 3.Automatically stops when charging is complete. 4.Fully protect... ... more

1�High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2�Safety Protection: Equipped with a protection board it effectively... ... more

1�High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2�Safety Protection: Equipped with a protection board it effectively... ... more

Specifications: Type:Smart battery charger Number of slot:4 Feature:Independent charging Color:Black Power supply:USB Input Voltage/Current:DC 5V 1-2A Output Voltage/Current:DC 4.2V 1000mA Compatible battery model: :Suitable for 10440 14500 16340 16650... ... more

1�High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2�Safety Protection: Equipped with a protection board it effectively... ... more

1�High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2�Safety Protection: Equipped with a protection board it effectively... ... more

Specifications:Applicable voltage: 36VApplicable power: <1000wMaximum working current: 30AContinuous maximum current: 20AOverdischarge protection voltage: 2.6v Overcharge protection voltage: 4.25v Charging current: Maximum 10A Balance voltage:... ... more

1�High continuous current resistant to large power flow. 2�Convenient to install easy to manipulate suitable for many scenarios. 3�The board has short circuit protection function for better reliability. 4�The maximum working current is 6~8A... ... more

1�High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2�Safety Protection: Equipped with a protection board it effectively... ... more

1�High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2�Safety Protection: Equipped with a protection board it effectively... ... more

Description: Item type: Charger Product Name: 18650 Charger Four Slots / Two Slots Input voltage: DC 5V/1-2A conventional USB power supply Output voltage: DC 4.2V 1000mA Compatible with battery type; No.: 10440 14500 16340 16650 14650 18350 18500 18650... ... more

Feature:1. High continuous current resistant to large power flow. 2. Convenient to install easy to manipulate suitable for many scenarios. 3. The board has short circuit protection function for better reliability. 4. The maximum working current is 6~8A... ... more

1�High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2�Safety Protection: Equipped with a protection board it effectively... ... more

Features: 1.High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2.Safety Protection: Equipped with a protection board it effectively... ... more

Description: Item type: Charger Product Name: 18650 Charger Four Slots / Two Slots Input voltage: DC 5V/1-2A conventional USB power supply Output voltage: DC 4.2V 1000mA Compatible with battery type; No.: 10440 14500 16340 16650 14650 18350 18500 18650... ... more

Description: Item type: Charger Product Name: 18650 Charger Four Slots / Two Slots Input voltage: DC 5V/1-2A conventional USB power supply Output voltage: DC 4.2V 1000mA Compatible with battery type; No.: 10440 14500 16340 16650 14650 18350 18500 18650... ... more

1�High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2�Safety Protection: Equipped with a protection board it effectively... ... more

1�High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2�Safety Protection: Equipped with a protection board it effectively... ... more

Description: Item type: Charger Product Name: 18650 Charger Four Slots / Two Slots Input voltage: DC 5V/1-2A conventional USB power supply Output voltage: DC 4.2V 1000mA Compatible with battery type; No.: 10440 14500 16340 16650 14650 18350 18500 18650... ... more

Description: Item type: Charger Product Name: 18650 Charger Four Slots / Two Slots Input voltage: DC 5V/1-2A conventional USB power supply Output voltage: DC 4.2V 1000mA Compatible with battery type; No.: 10440 14500 16340 16650 14650 18350 18500 18650... ... more

Description: Type:Smart battery charger Number of slot:4 Feature:Independent charging Color:Black Power supply:USB Input Voltage/Current:DC 5V 1-2A Output Voltage/Current:DC 4.2V 1000mA Compatible battery model: :Suitable for 10440 14500 16340 16650... ... more

Features: 1. Li-ion battery smart fast charger durable and reliable. 2. LED indication light auto power off after finished charging. 3. Over charging reverse-polarity and short circuit protection etc. 4. 4 slot independent charging suitable for... ... more

Description: Item type: Charger Product Name: 18650 Charger Four Slots / Two Slots Input voltage: DC 5V/1-2A conventional USB power supply Output voltage: DC 4.2V 1000mA Compatible with battery type; No.: 10440 14500 16340 16650 14650 18350 18500 18650... ... more

Item Type: Charger Module Material: PCB Power Supply: DC 5V Greater or Equal to 2A Charging Voltage: 4.24V (±1%) Protection: Protection for Reverse Connection of Battery Cells Charging Current: 500MA Working Ambient Temperature: -40°C to... ... more

1�High continuous current resistant to large power flow. 2�Convenient to install easy to manipulate suitable for many scenarios. 3�The board has short circuit protection function for better reliability. 4�The maximum working current is 6~8A... ... more

Description: Item type: Charger Product Name: 18650 Charger Four Slots / Two Slots Input voltage: DC 5V/1-2A conventional USB power supply Output voltage: DC 4.2V 1000mA Compatible with battery type; No.: 10440 14500 16340 16650 14650 18350 18500 18650... ... more

1�High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2�Safety Protection: Equipped with a protection board it effectively... ... more

New Indicator Universal Battery Cell Tester AA AAA C/D 9V Volt Button Checker Feature: 100% brand new and high quality . Quantity:1 Double easy-to-read color-coded scales indeicate power level Can quickly test the capacity of your battery Compact size... ... more

Specifications: Type:Smart battery charger Number of slot:4 Feature:Independent charging Color:Black Power supply:USB Input Voltage/Current:DC 5V 1-2A Output Voltage/Current:DC 4.2V 1000mA Compatible battery model: :Suitable for 10440 14500 16340 16650... ... more

Product features: Color: black Input voltage: DC 5V 1-2a conventional USB power supply Output voltage: DC 4.2v 1000mA Product size: 122*90*30mm Product certification: eu CE/EMC certification us FCC certification Compatible battery model: 10440 14500... ... more

Specifications: Type:Smart battery charger Number of slot:4 Feature:Independent charging Color:Black Power supply:USB Input Voltage/Current:DC 5V 1-2A Output Voltage/Current:DC 4.2V 1000mA Compatible battery model: :Suitable for 10440 14500 16340 16650... ... more

1.High Performance: Single cell lithium battery protection board boasts excellent performance providing long lasting and reliable power support for your electronic devices. 2.Safety Protection: Equipped with a protection board it effectively prevents... ... more

Applicable voltage: 36V Applicable power: Less than 1000w Max. working current: 30A Continuous maximum current: 20A Overdischarge protection voltage: 2.6v Overcharge protection voltage: 4.25v Charging current: max. 20A High temperature discharge: 75... ... more

Description: Item type: Charger Product Name: 18650 Charger Four Slots / Two Slots Input voltage: DC 5V/1-2A conventional USB power supply Output voltage: DC 4.2V 1000mA Compatible with battery type; No.: 10440 14500 16340 16650 14650 18350 18500 18650... ... more

Applicable voltage: 36V Applicable power: Less than 1000w Max. working current: 30A Continuous maximum current: 20A Overdischarge protection voltage: 2.6v Overcharge protection voltage: 4.25v Charging current: max. 20A High temperature discharge: 75... ... more

New Indicator Universal Battery Cell Tester AA AAA C/D 9V Volt Button Checker Feature: 100% brand new and high quality . Quantity:1 Double easy-to-read color-coded scales indeicate power level Can quickly test the capacity of your battery Compact size... ... more

Description: Item type: Charger Product Name: 18650 Charger Four Slots / Two Slots Input voltage: DC 5V/1-2A conventional USB power supply Output voltage: DC 4.2V 1000mA Compatible with battery type; No.: 10440 14500 16340 16650 14650 18350 18500 18650... ... more

Description: Item type: Charger Product Name: 18650 Charger Four Slots / Two Slots Input voltage: DC 5V/1-2A conventional USB power supply Output voltage: DC 4.2V 1000mA Compatible with battery type; No.: 10440 14500 16340 16650 14650 18350 18500 18650... ... more