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The SparkFun Qwiic Quad Relay is a unique power accessory board, used for switching 4 high powered devices from your Arduino …
The SparkFun Battery Babysitter is an all-in-one single-cell Lithium Polymer (LiPo) battery manager. It’s half battery char…
Do you want to control a standard wall outlet device with your microcontroller, but don’t want to mess with the high-voltag…
This is the 4-Bay Eunicell Intelligent AA, & AAA Ni-MH battery charger.
This is an industrial grade DC Buck-Boost converter that inputs 8V to 40V and outputs 12V up to 3A or 36W. With tons of heats…
This is an extremely tiny and light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest energy…
The SparkFun 5V/1A LiPo Charger/Booster is a no-nonsense circuit for generating one amp from a Lithium Polymer battery at 5V.…
This is a simple four cell AA battery holder.
The SparkFun Buck-Boost Converter is a handy power accessory board that allows you to fine tune the amount of power your proj…
These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 850…
Slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 1000 mAh!
Have a project that needs some good power? Do you like free power provided by our friend, Mr. Sun? Check out this high qualit…
LiPo batteries are a great way to power your projects. They're small, lightweight, and pack a pretty good punch for their siz…
This is an industrial grade DC Buck-Boost converter that inputs 8V to 36V and outputs 12V up to 6A or 72W.
This is the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries. This MPPT solar …
If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun LiPo Charger Basic …
CR2032 Lithium metal 3V 250mAh button cell battery. Great for powering low power processors or blink an LED for weeks at a ti…
This is the same 18650 Lithium Ion Cell that you know and love, but now includes pre-attached solder tabs! These round high c…
The SparkFun Qwiic Single Relay provides you with the easiest to use relay yet, handling up to 5.5A at 240VAC for long period…
This is a unique two-cell AAA battery holder built specifically for the BBC micro:bit. The 6" (~150mm) cable has been termina…
A solid state relay (SSR) allows you to control high-curent AC loads from lower voltage DC control circuitry. Solid state rel…
These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 200…
This is a very small, extremely lightweight battery based on Lithium Ion chemistry, with the highest energy density currently…
The SparkFun LiPo Charger Plus is the suped-up power option in the SparkFun line of single-cell lithium polymer (LiPo) batter…
This is a high quality switching 'wall wart' AC to DC 5V 2000mA Barrel Jack wall power supply manufactured specifically for S…
No, these aren't some sort of weird, AA battery, this is actually a 18650 Lithium Ion Cell. These round high capacity cells h…
6 pin SOT-23 to DIP adaptor. Created to take SOT23 of various pin sizes breakout to DIP. This will work with 3-pin MOSFETs, B…
Slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 1250 mAh and is IE…
This adjustable wall adapter features a rotary switch on the enclosure that allows you to select the voltage.
The SparkFun Adjustable LiPo Charger is a single-cell lithium polymer (LiPo) and lithium ion battery charger. Because it’s …
The RELAYplate from Pi-Plates is the first dedicated relay board for the Raspberry Pi designed to meet the safety requirement…
This is a simple 4 cell AA battery holder. The 5 inch cable is terminated with a standard 5.5x2.1mm, center positive barrel j…
Featuring the AP63203, this baby breakout board takes advantage of a 2A synchronous buck converter that has a wide input volt…
This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5…
The SparkFun Breadboard Power Supply Stick is a very simple board that takes a 6-12V input voltage and outputs a selectable 5…
The 1.2 Watt Volt small solar panel from Voltaic Systems is a lightweight, waterproof, small solar panel designed for 5-7 yea…
This is a high quality switching 'wall wart' AC to DC 5V 2000mA USB Micro-B wall power supply manufactured specifically for S…
If you need some juice, this 6Ah Lithium Ion Battery is for you. These are very compact batteries based on Lithium Ion chemis…
If you've ever wondered how to control the headlight of a car from a microcontroller, a MOSFET is what you need. This is a ve…
The PiJuice is a fully uninterruptible power supply HAT that will always keep your Raspberry Pi powered.
This is a simple coin cell battery holder that can enclose two CR2032 batteries inside itself, and safely kept closed via two…
Your 5V system can wield great power with this big, beefy relay board. How does 10A on the NC contacts and 20A on the NO cont…
The SparkFun Qwiic Quad Solid State Relay Kit takes one of our favorite solid state relays and lets you place up to four of t…
This USB Power Meter is a versatile tool that can provide voltage, current, capacity, and impedance displayed on the built-in…
Here is a very simple breadboard power supply kit that takes power from a DC wall wart and outputs a selectable 5V or 3.3V re…
This is a high grade DC Buck converter that inputs 8 to 12V and outputs 5V up to 3A or 15W. With good thermal performance and…
This is a simple cable that adapts from a USB port to a 5.5x2.1mm barrel connector, center positive. This cable allows the us…
