Top 10 3.7V Power Supply UK – Car Audio Power Inverters

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1. EBILUN

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10A 37W DC Buck Power Supply Voltage Changer Adapter Regulator, 12V To 3.7V DC Step Down Power Converter

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EBILUN #ad - Thin, high efficiency practical and portable, small size, and easy installation and use. Please be remind to make sure wiring carefully & correctly. Input wire color : +red, output wire color : +yellow, -black, -Black.

Built-in input transient overvoltage, output short circuit, over temperature protection, stable performance. Purpose : car alarms, motors, pumps, intercom, dvd, electric motors, LED lights, surveillance, navigation, radio, and industrial electrical equipment, photovoltaic energy, LED car display, air conditioning, solar energy, audio, fans, etc. Abs outer case material, long term stable and reliable, anti-shock, especially made to be waterproof, and dust-proof, more durable. Note: no wiring reverse short-circuit protection for this device.
BrandEBILUN #ad
ManufacturerEBILUN #ad
Part NumberC7E6J7J987183A_UK10006

2. TOOLDO

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TOOLDO 1pcs Waterproof DC to DC Buck Power Converter Transformer Power Module Buck Power Module Automotive Voltage Step-Down Regulator 12V to 3.7V 3A

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TOOLDO #ad - Input voltage: 12v dc 8-22v, the step-down power supply must ensure that the input voltage is higher than the output voltage of 3V and above. A quality and affordable utility for private use or work! With pc flame-retardant casing, shockproof and moisture proof, waterproof, very convenient for you to use it in various environments. Compact design, high efficiency, easy to install and use. Synchronous rectification, low heat generation, overload / overheat / overcurrent / short circuit protection.
BrandTOOLDO #ad
ManufacturerTOOLDO #ad
Part NumberHP-016

3. AMONIDA

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Battery Charging UPS Board, Power Supply 12v Power Supply 3.7V Input for Switches#1

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AMONIDA #ad - At least 20awg wire should be used for welding input and output, and the wire length should not exceed 10cm/3. 9in. The battery is automatically charged and discharged.

The control board will generate heat when working, so keep a certain distance from the battery when installing. Charge the battery when there is power, and automatically use the battery when power is off. Suitable for routers, switches, alarms, cameras and other equipment to be used as backup power after power failure. Suitable for routers, alarms, switches, cameras and other equipment to be used as backup power after power failure. With input reverse connection, overheating, and short circuit protection, overdischarging, you can use the UPS Module with confidence.
BrandAMONIDA #ad
ManufacturerAMONIDA #ad
Part NumberAMONIDAs0c9xyft873961-11

4. SENRISE

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Audio, etc, SENRISE Power Module, Waterproof DC Buck Converter 12V to 3.7V Power Supply Converter Module for Car LED Dispaly, Motor

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SENRISE #ad - Specifications:input voltage:12v 8v-22v; output voltage:3v/3. 3v/3. 7v/5v/6v/9v selectable; output currentmax:3A; Output Power:3V 9W/3.

3v 10w/3. 7v 11w/5v 15w/6v 18w/9v 18w. Product name: power Supply Module; Size:35x25x21mm. Package: 1 x waterproof dc buck converter 12V to 3V 3A 9W Power Supply Module Please choose output voltage. Over-voltage protection, over-temperature protection, short-circuit protection, over-current protection, and automatic recovery work, full potting and waterproof design. Widely used in led car display, audio, gps navigation, hard disk player, car DVD, MP7, MP3, is a good power supply for car equipment.
BrandSENRISE #ad
ManufacturerSENRISE #ad
Weight0.03 kg (0.08 Pounds)
Part NumberH13133

5. F Fityle

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F Fityle 2X 3.7V Power Supply Module at 1000KV DC Piece of

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F Fityle #ad - This small high efficiency module can release high-age output with simple external circuit power supply. This high-age module is the principle of Tesla coil. For students to study electrical experiment, do science experiment, etc. Input: 3. 7v - 7. 4v / 4A. Output age: 800kv - 1000KV/05a.
BrandF Fityle #ad
ManufacturerF Fityle #ad
Part Number07550089500C2362309234

6. Oumefar

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DC-DC Buck Converter 5-27V to 3.7V/5V Step-Down Power Supply Module3.7V

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Oumefar #ad - Great performance module: the step-down usb power supply module has high power and stable output, in this case, which can converts 6-32VDC to 5VDC, you don’t have to worry about the working performance of this module.

Support fast charging: this step-down converter has usB output port that can be used to charge phone, if you need, supports fast charging, which can be a great helper to you, this Converter is an ideal choice or replacement. High conversion efficiency: the step-down converter has premium quality components, ensures high conversion efficiency, which is 100% brand new and has quality assurance, which can up to 97%.

Terminal block design: this dc-dc buck converter can easily and convenient wring, which won’t cause your trouble of wiring, with the design of terminal block, and can fully save your time and energy. Dc power converter module: this usb power supply Buck Converter is a DC power converter module, which is made of high quality circuit and aluminum material, with a long time service life.
BrandOumefar #ad
ManufacturerOumefar #ad
Height0 cm (0 Inches)
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Weight0 kg (0 Pounds)
Width0 cm (0 Inches)
Part NumberOumefart26wo0kev8-01

7. Hayatec

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TP4056 5V 1A TYPE C Micro USB Board Module for 18650 Lithium Battery Charging TP4056 by HAYATEC Pack Of 5

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Hayatec #ad - Unit dimension : l 25mm x w 19mm x H 10mm. In-versed Polarity- NO. The charging voltage is fixed at 4. 2v, and the charging current can be externally set by a resistor. Thermal feedback automatically adjusts the charge current to limit chip temperature during high power operation or high ambient temperature conditions.

Led indicator : red is charging/ Blue or Green indicates fully charged. Input voltage : 4. 5v-5. 5v | full charge voltage : 4. 2v. Input interface: Type C USB. Type c micro usb input terminal with a female, and still retains the input voltage wiring pads, can be very convenient DIY.

Package Quantity: 5 pieces. Current : 1a adjustable. The hayatec module uses high quality charging chip TP4056, the external circuit is simple, good high precision charging. He tp4056 can also be placed in shutdown mode when there is a power supply, can be directly input to do with the phone charger rechargeable lithium battery, reducing the supply current to 55uA.
BrandHayatec #ad
ManufacturerDeal House Direct #ad
Height0.35
Length0.98
Width0.75
Part NumberTP4056-C
ModelTP4056-C

8. tooloflife

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Audio, etc, Waterproof DC Buck Converter 12V to 3.7V Power Supply Converter Module for Car LED Dispaly, Motor, POWERTOOL Power Module

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tooloflife #ad - Product name: power Supply Module; Size:35x25x21mm. Specifications:input voltage:12v 8v-22v; output voltage:3v/3. 3v/3. 7v/5v/6v/9v selectable; output currentmax:3A; Output Power:3V 9W/3.

3v 10w/3. 7v 11w/5v 15w/6v 18w/9v 18w. Package: 1 x waterproof dc buck converter 12V to 3V 3A 9W Power Supply Module Please choose output voltage. Over-voltage protection, short-circuit protection, and automatic recovery work, over-current protection, over-temperature protection, full potting and waterproof design. Widely used in led car display, audio, car dVD, MP3, hard disk player, MP7, GPS navigation, is a good power supply for car equipment.
Brandtooloflife #ad
Manufacturertooloflife #ad
Weight0.03 kg (0.08 Pounds)
Part NumberH13133

9. Greabuy

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Greabuy Step Up Power Supply Protection Charging 3.7V Lithium Battery 18650 Output 5V 1A-Charging Board Module USB Charger Module Lithium Li-ion 3.7v Battery Charger Board Dc-dc Step Up

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Greabuy #ad - Output current: rated-at 1000ma when 2. 8v-3v is input, 800ma is output; Output single lithium input can reach 1000MA. Input voltage: 2. 6-5v. Output ripple: 50mV. Conversion efficiency: 90% on average the higher-the input voltage, the higher-the efficiency. Output voltage: 5. 0v-5. 2v.
BrandGreabuy #ad
ManufacturerGreabuy #ad
Part NumberGreabuy

10. Entatial

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12v Power Supply, UPS Module 3.7V Input Battery Charging UPS Board for Switches for Routers#2

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Entatial #ad - Suitable for routers, alarms, switches, cameras and other equipment to be used as backup power after power failure. Charge the battery when there is power, and automatically use the battery when power is off.

The control board will generate heat when working, so keep a certain distance from the battery when installing. With input reverse connection, overdischarging, and short circuit protection, overheating, you can use the UPS Module with confidence. The battery is automatically charged and discharged. At least 20awg wire should be used for welding input and output, and the wire length should not exceed 10cm/3. 9in.
BrandEntatial #ad
ManufacturerEntatial #ad
Part NumberEntatial4y5iogeusd978-12