Power & Batteries

SKU: AF-3310 | Brand: Adafruit

A 5.5×2.1mm DC barrel connector plug for adding a standard power connector to the end of your own wires. The outer shell unscrews to reveal solder terminals and a crimp strain relief, making it easy to wire up custom ...

SKU: AF-3286 | Brand: Adafruit

A slim 3×AAA battery holder with a built-in on/off switch, JST 2-pin connector, and an ergonomic belt clip. The series configuration outputs approximately 3.6–4.5V — a similar range to lithium-ion batteries — making i...

SKU: AF-3287 | Brand: Adafruit

A compact 3×AA battery holder with a built-in on/off switch, JST 2-pin connector, and an ergonomic belt clip. The series configuration outputs approximately 3.6–4.5V — a similar range to lithium-ion batteries — making...

SKU: SF-PRT-10592 | Brand: SparkFun

This is the SMD version of PRT-07948, which is the unit we like to use as RTC backup and SRAM backup for GPS units. Holds battery in place with friction. The metal housing connects to the positive side of the batte...

SKU: SF-PRT-10512 | Brand: SparkFun

A snap-in 9V battery holder with a 5.5mm/2.1mm centre-positive barrel jack connector. The battery clicks securely into place, and three mounting holes allow you to attach the holder to an enclosure or chassis. Key Fe...

SKU: AF-574 | Brand: Adafruit

Put a current meter anywhere with this very handy display. This panel meter requires a DC voltage to run, and then has two thick gauge wires to measure current draw. A shunt is already on board so its very easy to hoo...

SKU: SF-COM-12766 | Brand: SparkFun

The L7812 is a three-terminal positive voltage regulator with a fixed 12V output. It provides stable local regulation with built-in protection against overcurrent, thermal overload, and short circuits, making it a rel...

SKU: SF-PRT-10287 | Brand: SparkFun

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 jack...

SKU: SF-PRT-10255 | Brand: SparkFun

The LiPower board is based on the incredibly versatile TPS61200 boost converter. The board is configured to be used with a LiPo battery, has solder jumper selectable 5V and 3.3V output, and an under voltage protection...

SKU: SF-PRT-12711 | Brand: SparkFun

The SparkFun USB LiPoly Charger is a single-cell Li-Ion/Li-Polymer battery charging board based on the MCP73831T. It charges 3.7V LiPo cells at a selectable rate of 500 mA or 100 mA via a solder jumper, with power inp...

SKU: SF-PRT-10217 | Brand: SparkFun

If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun LiPo Charger Basic is stripped down of all features and just does one thing well - charge 3.7V LiPo cells ...

SKU: AF-1903 | Brand: Adafruit

The PowerBoost 500 Basic is a compact DC/DC boost converter that takes input from 1.8V or higher and outputs a steady 5.2V — perfect for powering portable 5V projects from batteries. The slightly elevated 5.2V output ...

SKU: AF-3428 | Brand: Adafruit

A voltage detector is handy for projects where you want to make sure your microcontroller doesn't run at a low voltage. For example, say you have a Feather Huzzah running on a lipoly battery every few minutes. Even...

SKU: AF-1901 | Brand: Adafruit

A Qi-compatible wireless charging receiver module that outputs regulated 5 V at up to 500 mA. Place this module on any standard Qi charging base to receive power wirelessly — ideal for adding wireless recharging capab...

SKU: DF-FIT0479 | Brand: DFRobot

This USB 2.0 cable has a USB to microUSB connection. The USB connector is double sided so it can be connected in either orientation and includes an etched LattePanda logo. Each connector has super antioxidant...

SKU: AF-770 | Brand: Adafruit

Keep your power source safe and toasty in these waterproof 2xAA battery holders. They're just like classic switched battery holders, but designed for survival! The case has a rubber gasket around the edge of the ca...

SKU: SF-PRT-09498 | Brand: SparkFun

A right-angle 24-pin Molex Mini-Fit Jr. connector, the standard ATX power supply connector found on PC motherboards. Two rows of twelve pins break out to through-hole male headers for PCB mounting. Pair with a standar...

SKU: AF-2089 | Brand: Adafruit

A snap-in battery holder for Sony NP-F series camcorder batteries, with a pre-attached 2.1 mm DC barrel plug for powering 7 V DC devices. Clip in a compatible Li-Ion battery pack and connect directly to robots, Arduin...

SKU: AF-5580 | Brand: Adafruit

The Adafruit MAX17048 LiPoly/LiIon Fuel Gauge and Battery Monitor gives you accurate battery voltage and charge percentage readings for your 1S 3.7–4.2V lithium polymer or lithium ion battery. Instead of guessing rema...

SKU: TB-SB2933 | Brand: Little Bird

This range of Panasonic eneloop batteries have numerous advantages over regular rechargeables. Key characteristics include low self-discharge, they are pre-charged so can be used right out of the packet, and can be re...