Power & Batteries

SKU: SF-PRT-09547 | Brand: SparkFun

A 2×AA battery holder with a sliding cover secured by a Phillips head screw and a built-in ON/OFF switch for convenient power control. The 150mm tinned leads make it easy to solder into your projects. Key Features ...

SKU: LB-P4775 | Brand: Little Bird

Type-C USB Power Meter Tester – Color Display, PD 3.1, QC 3.0, Fast Charge Protocols Need to know exactly what's going on between your USB-C power source and your device? The Type-C USB Power Meter Tester has you cov...

SKU: DF-DFR0564 | Brand: DFRobot

Still using a big, bulky, traditional power adapter to charge your lithium battery? DFRobot provides you with a compact and efficient 7.4V lithium battery USB charger, only the size and weight of an ordinary Gravit...

SKU: SF-BOB-12009 | Brand: SparkFun

The SparkFun Bi-Directional Logic Level Converter safely translates signals between different voltage levels — stepping 5V down to 3.3V and 3.3V up to 5V on the same channel. It also works with 2.8V and 1.8V devices, ...

SKU: DF-DFR0753 | Brand: DFRobot

This 40W high power DC-DC Buck converter offers a 6~14V input voltage range and up to 5V/8A output. Featuring a small body, high conversion ratio, strong heat dissipation, and large current output, the module is compa...

SKU: AF-4410 | Brand: Adafruit

The Adafruit Micro-Lipo Charger is a tiny, easy-to-use charger for single-cell 3.7V/4.2V lithium polymer and lithium ion rechargeable batteries. Simply plug a USB-C cable into any USB power source and connect your bat...

SKU: AF-4237 | Brand: Adafruit

A compact 3.7 V 350 mAh lithium-ion polymer (LiPo) battery with a short cable and genuine 2-pin JST-PH connector. The slim, lightweight form factor makes it ideal for wearables, IoT devices, and portable electronics p...

SKU: DF-DFR0457 | Brand: DFRobot

In most Arduino projects, relays are the first choice to drive some large current device. It requires a certain amount of current to drive the internal coil to pick-up contact. But for some MCU, like Intel Edison,...

SKU: DF-FIT0080 | Brand: DFRobot

A 4-cell AA battery holder in a square (2×2) configuration with a sliding removable cover and a built-in ON/OFF switch. Features 5-inch tinned leads for easy soldering. The cover keeps batteries secure, and the switch...

SKU: LB-LS5508 | Brand: Little Bird

A 2×AA battery holder with a protective cover, built-in on/off switch, and large alligator clip leads. The alligator clips make it easy to connect to circuits, components, and conductive materials without soldering — ...

SKU: DF-DFR0831 | Brand: DFRobot

INTRODUCTIONThis is a 20W DC-DC buck converter power module with 7~24V input and 5V/4A output(Max). The high conversion efficiency and on-board 6 output ports make it suitable for connecting multiple devices like, lar...

SKU: SF-PRT-15101 | Brand: SparkFun

This is a unique two-cell AAA battery holder built specifically for the BBC micro:bit. The 6" (~150mm) cable has been terminated with a JST-PH connector. The connector mates the JST socket on the micro:bit perf...

SKU: SF-COM-00107 | Brand: SparkFun

This is the basic L7805 voltage regulator, a three-terminal positive regulator with a 5V fixed output voltage. This fixed regulator provides a local regulation, internal current limiting, thermal shut-down control,...

SKU: TB-SB2300 | Brand: Little Bird

A 14500-size rechargeable lithium-ion battery with 800mAh capacity and 3.7V nominal voltage. The 14500 form factor is the same size as a standard AA battery, making it a common choice for LED torches and other compact...

SKU: DF-DFR0668 | Brand: DFRobot

This is a Type-C  Lipo charger designed for single-cell 3.7V lithium battery. The compact size makes it easy to integrate into your applications. The charger adopts TP4056X lithium battery charging IC, which guar...

SKU: DF-FIT0110 | Brand: DFRobot

This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5x2.1mm, center-positive male barrel jack. If you need to connect bare wires to a barrel ...

SKU: AF-2750 | Brand: Adafruit

Lithium ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 350mAh for a total of about...

SKU: SF-COM-00526 | Brand: SparkFun

The LD1117V33 is a low-dropout (LDO) positive voltage regulator with a fixed 3.3V output. With on-chip trimming providing ±1% output voltage tolerance and built-in current and thermal limiting, it's a reliable choice ...

SKU: AF-5452 | Brand: Adafruit

This cable will let you get rid of all those wall adapters you have stashed in the plastic bin in the basement. Instead of multiple wall warts with different power and current capabilities, this cable will convert any...

SKU: DF-DFR0205 | Brand: DFRobot

This Power Module is a small size 5A 350KHz 25V Buck DC to DC Converter. It can convert any DC voltage between 3.6V-25V to a selectable voltage from 3.3V to 25V. You can choose 5V direct output voltage with the conv...