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The PiJuice is a fully uninterruptible power supply HAT that will always keep your Raspberry Pi powered.
If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun LiPo Charger Basic …
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…
The SparkFun Qwiic Quad Relay is a unique power accessory board, used for switching 4 high powered devices from your Arduino …
Have a project that needs some good power? Do you like free power provided by our friend, Mr. Sun? Check out this high qualit…
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 the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries. This MPPT solar …
These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 100…
The SparkFun Power Delivery Board provides takes 5-20V input and produces up to 100W power, so you can use the same power ada…
Do you want to control a standard wall outlet device with your microcontroller, but don’t want to mess with the high-voltag…
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 Battery Babysitter is an all-in-one single-cell Lithium Polymer (LiPo) battery manager. It’s half battery char…
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…
This is a high quality switching 'wall wart' AC to DC 5V 2000mA USB Micro-B wall power supply manufactured specifically for S…
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 5.1V 2,500mA USB Micro-B wall power supply manufactured specifically fo…
A solid state relay (SSR) allows you to control high-curent AC loads from lower voltage DC control circuitry. Solid state rel…
This Digital LED Voltmeter measures the voltage at a particular point of the system it has been hooked up to and then provide…
The SparkFun Buck-Boost Converter is a handy power accessory board that allows you to fine tune the amount of power your proj…
If you need some juice, this 6Ah Lithium Ion Battery is for you. These are very compact batteries based on Lithium Ion chemis…
These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 850…
This is a high quality switching 'wall wart' AC to DC 5V 2000mA Barrel Jack wall power supply manufactured specifically for S…
The SkyRC B6 V2 is a DC input high-performance, micro-processor controlled charge/discharge/DC/DC converter with battery mana…
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 high quality AC to DC 'wall wart' which produces a regulated output of 12VDC at up to 600mA.
The KTA-223 Relay Board is a USB or RS485 controlled module that can interface a PC to eight or more SPDT relays. This could …
This 2A "laptop brick" supply outputs both 5V and 12VDC and is terminated with a 4-pin ATX connector.
This is a very small, extremely light weight battery based on Lithium Ion chemistry. This is the highest energy density curre…
This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All heade…
The LiPower board is based on the incredibly versatile TPS61200 boost converter. The board is configured to be used with a Li…
This USB Relay Controller / Data Acquisition Module, from [Cana Kit](http://www.canakit.com/), allows computer controlled swi…
This is a high quality power supply manufactured specifically for SparkFun Electronics packs a lot of power; 20W at 5V and 40…
No, these aren't some sort of weird, AA battery, this is actually a 18650 Lithium Ion Cell. These round high capacity cells h…
CR2032 Lithium metal 3V 250mAh button cell battery. Great for powering low power processors or blink an LED for weeks at a ti…
This breakout board uses the LTC3588 Piezoelectric Energy Harvester from Linear Technologies. This board can be used not only…
This is a very small, extremely lightweight battery based on Polymer Lithium Ion chemistry. This is the highest energy densit…
LiPo batteries are a great way to power your projects. They're small, lightweight, and pack a pretty good punch for their siz…
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…
This is the same 18650 Lithium Ion Cell that you know and love, but now includes pre-attached solder tabs! These round high c…
If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun USB LiPo Charger is…
CR1225 lithium metal 3V 12mm 47mAh coin cell batteries. Perfect small battery for miniature sensor node applications. Thes…
The RELAYplate from Pi-Plates is the first dedicated relay board for the Raspberry Pi designed to meet the safety requirement…
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…
These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current …
This simple cable has so many uses! Plug the 9 volt battery clip onto a standard 9V battery and connect the other end to anyt…
This is a portable, slim, lightweight solar panel charger with 10 watts of power and a standard USB connection port.
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…
