Power Regulators & Converters | Surplus Network

XL4015 5A DC Buck Step-down Adjustable Voltage Power Converter w/ LED Voltmeter

USA

XL4015 5A DC Buck Step-down...

$5.95 USD

XL4015 5A DC Buck Step-down...

$5.95 USD

12V Charger Charging Control Module Lithium / Lead Battery Protection Board

USA

12V Charger Charging Control Module...

$5.95 USD

12V Charger Charging Control Module...

$5.95 USD

2pcs XL4015 5A DC Buck Step Down Voltage Converter Constant Current Power Module

USA

2pcs XL4015 5A DC Buck Step Down...

$5.95 USD

2pcs XL4015 5A DC Buck Step Down...

$5.95 USD

60W DC Buck Boost Voltage Converter Constant Current Module Step Power Up / Down

USA

60W DC Buck Boost Voltage Converter...

$5.95 USD

60W DC Buck Boost Voltage Converter...

$5.95 USD

5pcs MP1584 3A Adjustable DC Step Down Converter Buck Module 3.3V 5V 9V 12V 24V

USA

5pcs MP1584 3A Adjustable DC Step...

$5.95 USD

5pcs MP1584 3A Adjustable DC Step...

$5.95 USD

10pcs Mini360 3A DC Voltage Step Down Power Converter Buck Module 3.3V 5V 9V 12V

USA

10pcs Mini360 3A DC Voltage Step Down...

$5.95 USD

10pcs Mini360 3A DC Voltage Step Down...

$5.95 USD

2pcs TP4056 5V 1A Micro USB 18650 Lithium Battery Charging and Protection Board

USA

2pcs TP4056 5V 1A Micro USB 18650...

$1.95 USD

2pcs TP4056 5V 1A Micro USB 18650...

$1.95 USD

LM2596 36V 5A DC Buck Step Down Voltage Converter Constant Current Power Module

USA

LM2596 36V 5A DC Buck Step Down...

$3.99 USD

LM2596 36V 5A DC Buck Step Down...

$3.99 USD

2/5/10PCS TP4056 5V 1A USB 18650 Lithium Battery Charger Board Protection Module

China

2/5/10PCS TP4056 5V 1A USB 18650...

$0.99 USD

2/5/10PCS TP4056 5V 1A USB 18650...

$0.99 USD

Mini DC-DC Buck Step-down Converter Adjustable Power Module 3.3V 3V 5V 9V 12V 3A

Hong Kong

Mini DC-DC Buck Step-down Converter...

$0.99 USD

Mini DC-DC Buck Step-down Converter...

$0.99 USD

10pcs TP4056 5V 1A Micro USB Lithium Battery Charging Board Charger Module

USA

10pcs TP4056 5V 1A Micro USB Lithium...

$4.95 USD

10pcs TP4056 5V 1A Micro USB Lithium...

$4.95 USD

2pcs TP4056 5V 1A USB Type-C 18650 Lithium Battery Charging and Protection Board

USA

2pcs TP4056 5V 1A USB Type-C 18650...

$3.49 USD

2pcs TP4056 5V 1A USB Type-C 18650...

$3.49 USD

4S 20A 14.8V 16.8V Li-ion Lithium 18650 Battery BMS PCM Protection PCB Board

USA

4S 20A 14.8V 16.8V Li-ion Lithium...

$4.75 USD

4S 20A 14.8V 16.8V Li-ion Lithium...

$4.75 USD

2 PCS MT3608 DC-DC ADJUSTABLE STEP-UP POWER CONVERTER MODULE FOR Arduino & More

USA

2 PCS MT3608 DC-DC ADJUSTABLE...

$4.75 USD

2 PCS MT3608 DC-DC ADJUSTABLE...

$4.75 USD

6pcs MT3608 DC 2A Step Up Power Booster Module 2v-24v Boost Converter Arduino US

USA

6pcs MT3608 DC 2A Step Up Power...

$7.99 USD

6pcs MT3608 DC 2A Step Up Power...

$7.99 USD

Waterproof DC-DC Step Down Volt Converter Tool 20-60V 24V 36V 48V to 12V 3A

USA

Waterproof DC-DC Step Down Volt...

$7.99 USD

Waterproof DC-DC Step Down Volt...

$7.99 USD

5pcs 5V Micro USB 1A 18650 Lithium Battery Charging Board Charger Module TP4056

USA

5pcs 5V Micro USB 1A 18650 Lithium...

$2.99 USD

5pcs 5V Micro USB 1A 18650 Lithium...

$2.99 USD

1PCS DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator

China

1PCS DC 3v-6v to 400kV 400000V Boost...

$1.93 USD

1PCS DC 3v-6v to 400kV 400000V Boost...

$1.93 USD

10pcs 5V Mini USB 1A 18650 Lithium Battery Charging Board Charger Module TP4056

USA

10pcs 5V Mini USB 1A 18650 Lithium...

$4.99 USD

10pcs 5V Mini USB 1A 18650 Lithium...

$4.99 USD

Waterproof DC-DC Converter 12V Step Down to 5V Power Supply Module 3A 15W BLACK

USA

Waterproof DC-DC Converter 12V Step...

$4.99 USD

Waterproof DC-DC Converter 12V Step...

$4.99 USD

12V to 9V DC-DC Buck Converter Step Down Module Power Supply Voltage Regulator

USA

12V to 9V DC-DC Buck Converter Step...

$4.99 USD

12V to 9V DC-DC Buck Converter Step...

$4.99 USD

5A Constant Current Constant LED Driver Lithium ion Batteries Charging Module

USA

5A Constant Current Constant LED...

$4.99 USD

5A Constant Current Constant LED...

$4.99 USD

3S 11.1V 12.6V 25A 18650 Li-ion Lithium Battery PCB BMS Protection Board Balance

USA

3S 11.1V 12.6V 25A 18650 Li-ion...

$6.19 USD

3S 11.1V 12.6V 25A 18650 Li-ion...

$6.19 USD

4S 14.8V 30A BMS Protection PCB Cell Board Li-ion Lithium 18650 Battery Balance

USA

4S 14.8V 30A BMS Protection PCB Cell...

$6.19 USD

4S 14.8V 30A BMS Protection PCB Cell...

$6.19 USD

FP5139 100W DC Boost Step-up Adjustable Voltage Power Converter LED Voltmeter

USA

FP5139 100W DC Boost Step-up...

$6.95 USD

FP5139 100W DC Boost Step-up...

$6.95 USD

30A 14.8V 4S Li-ion Lithium 18650 Battery BMS PCB Protection Board Cell Balance

China

30A 14.8V 4S Li-ion Lithium 18650...

$2.98 USD

30A 14.8V 4S Li-ion Lithium 18650...

$2.98 USD

2S/3S/4S/6S BMS PCB Protection Board For 18650 Li-ion Lithium Battery Cell US

USA

2S/3S/4S/6S BMS PCB Protection Board...

$11.99 USD

2S/3S/4S/6S BMS PCB Protection Board...

$11.99 USD

The ComPilot/ComPilot II replacement battery Lithium Ion polymer 3.7 V DC batter

USA

The ComPilot/ComPilot II replacement...

$11.99 USD

The ComPilot/ComPilot II replacement...

$11.99 USD

DC-DC CC CV Buck Converter Step-down Power Module 7-32V to 0.8-28V 12A 300W Hot

Bulgaria

DC-DC CC CV Buck Converter Step-down...

$3.80 USD

DC-DC CC CV Buck Converter Step-down...

$3.80 USD

10X RE DC-DC 3A Buck Converter Adjustable Step-Down Power Supply Module LM2596S

USA

10X RE DC-DC 3A Buck Converter...

$10.99 USD

10X RE DC-DC 3A Buck Converter...

$10.99 USD

Lot LM2596S DC-DC 3A Buck Adjustable Step-down Power Supply Converter Module

USA

Lot LM2596S DC-DC 3A Buck Adjustable...

$9.75 USD

Lot LM2596S DC-DC 3A Buck Adjustable...

$9.75 USD

12V to 3/3.3/3.7/5/6/9V Power Supply Module Waterproof DC to DC buck Converter

Hong Kong

12V to 3/3.3/3.7/5/6/9V Power Supply...

$3.84 USD

12V to 3/3.3/3.7/5/6/9V Power Supply...

$3.84 USD

10Pcs 3A BMS Protection Board For 1S 3.7V 18650 Li-ion lithium Lipo Battery Cell

USA

10Pcs 3A BMS Protection Board For 1S...

$5.89 USD

10Pcs 3A BMS Protection Board For 1S...

$5.89 USD

5pcs XL4015 5A DC Buck Step Down Voltage Converter Constant Current Power Module

USA

5pcs XL4015 5A DC Buck Step Down...

$11.95 USD

5pcs XL4015 5A DC Buck Step Down...

$11.95 USD

18650 3S 12.6V 11.1V 25A Li-ion Lithium Battery BMS PCB Protection Board Balance

China

18650 3S 12.6V 11.1V 25A Li-ion...

$2.14 USD

18650 3S 12.6V 11.1V 25A Li-ion...

$2.14 USD

LM2596 Buck Step-down Power Converter Module DC 2.5~40 to 1.25-37V LED Voltmeter

USA

LM2596 Buck Step-down Power Converter...

$9.95 USD

LM2596 Buck Step-down Power Converter...

$9.95 USD

10pcs TP4056 5V 1A USB Type-C USB-C Lithium Battery Charging & Protection Board

USA

10pcs TP4056 5V 1A USB Type-C USB-C...

$9.95 USD

10pcs TP4056 5V 1A USB Type-C USB-C...

$9.95 USD

2V-26V DC MT3608 MicroUSB Step Up Boost Voltage Regulator Power Supply Module US

USA

2V-26V DC MT3608 MicroUSB Step Up...

$4.69 USD

2V-26V DC MT3608 MicroUSB Step Up...

$4.69 USD

400W 15A DC Step-up Boost Converter Constant Current Power Supply LED Driver USA

USA

400W 15A DC Step-up Boost Converter...

$8.88 USD

400W 15A DC Step-up Boost Converter...

$8.88 USD

DC-DC Converter 20A300W Step Down Buck-Boost Power Adjustable Charger Board Tool

USA

DC-DC Converter 20A300W Step Down...

$7.97 USD

DC-DC Converter 20A300W Step Down...

$7.97 USD

DC-DC Step Up Down Boost buck Voltage Converter Module LM2577S LM2596S Power N2

China

DC-DC Step Up Down Boost buck Voltage...

$3.16 USD

DC-DC Step Up Down Boost buck Voltage...

$3.16 USD

5A DC-DC Constant Current Voltage Regulator Buck Step Down Converter 5V 12V 24V

China

5A DC-DC Constant Current Voltage...

$3.03 USD

5A DC-DC Constant Current Voltage...

$3.03 USD

DC-DC CC CV Buck Converter Step-down Power Module 7-32V to 0.8-28V 12A 300W PPT

China

DC-DC CC CV Buck Converter Step-down...

$3.78 USD

DC-DC CC CV Buck Converter Step-down...

$3.78 USD

AC-DC Power Supply Buck Converter Step Down Module 3.3V 5V 9V 12V 15V 24V 36V US

USA

AC-DC Power Supply Buck Converter...

$7.05 USD

AC-DC Power Supply Buck Converter...

$7.05 USD

AVR SX460 Automatic Voltage Volt Regulator Replacement for Generator NJ

USA

AVR SX460 Automatic Voltage Volt...

$18.24 USD

AVR SX460 Automatic Voltage Volt...

$18.24 USD

3S 11.1V 12.6V 25A 18650 Li-ion Lithium Battery BMS PCB Protection Board Balance

China

3S 11.1V 12.6V 25A 18650 Li-ion...

$2.18 USD

3S 11.1V 12.6V 25A 18650 Li-ion...

$2.18 USD

Max 40A Balance Battery Protection Board BMS PCB For 36V 10S 10Packs Li-ion Sx

USA

Max 40A Balance Battery Protection...

$10.95 USD

Max 40A Balance Battery Protection...

$10.95 USD

3S/4S/5S/6S/13S BMS PCB Protection Board For 18650 Li-ion Lithium Battery Cell

China

3S/4S/5S/6S/13S BMS PCB Protection...

$3.59 USD

3S/4S/5S/6S/13S BMS PCB Protection...

$3.59 USD

10Pcs 5V mini USB 1A 18650 TP4056 Lithium Battery Charging Board With Protec H2

Hong Kong

10Pcs 5V mini USB 1A 18650 TP4056...

$2.84 USD

10Pcs 5V mini USB 1A 18650 TP4056...

$2.84 USD

6S/5S/4S/3S/2S/1S BMS PCB Protection Board For 18650 Li-ion Lithium Battery Cell

Hong Kong

6S/5S/4S/3S/2S/1S BMS PCB Protection...

$2.60 USD

6S/5S/4S/3S/2S/1S BMS PCB Protection...

$2.60 USD

2/5/10pc TP4056 1A Lithium Battery Charging Board Charger Module Micro USB New

Hong Kong

2/5/10pc TP4056 1A Lithium Battery...

$1.44 USD

2/5/10pc TP4056 1A Lithium Battery...

$1.44 USD

1, 3, 5, 10, 15, 20 pcs voltage regulator L7805 - L7815 ; LM 317 1.5A LM7805-15

USA

1, 3, 5, 10, 15, 20 pcs voltage...

$1.99 USD

1, 3, 5, 10, 15, 20 pcs voltage...

$1.99 USD

Adjustable DC-DC LM 2596 Converter Buck Step Down Regulator Power Module -

China

Adjustable DC-DC LM 2596 Converter...

$3.45 USD

Adjustable DC-DC LM 2596 Converter...

$3.45 USD

DC-DC Converter 10/12/15/20A 150/250/300/400/1200W Step up Step down Buck Boost

China

DC-DC Converter 10/12/15/20A...

$7.78 USD

DC-DC Converter 10/12/15/20A...

$7.78 USD