Batteries

This is a Li-ion Battery Holder specially designed for micro: bit educational robot Maqueen. It can be used to hold a CR123A 3.6V lithium rechargea...

This is a battery box specialized for micro:bit. You can place two AAA batteries into the battery holder, switch on and then it will supply powe...

Sometimes we want our projects on, but sometimes we want to turn them off for a while to save power. The SparkFun Nano Power Timer will run while o...

The SparkFun LiPo Charger Plus is the souped-up power option in the SparkFun line of single-cell lithium polymer (LiPo) battery chargers. With this...

Power:bit button cell board is a micro expansion board in the smallest size equipped with a buzzer. It can not only supply power to the board but i...

Do you yearn for complete and total mastery of your battery pack situation? Like a mystical amulet in a fantasy film, the Tenergy 5-in-1 Intelligen...

This 5m length of EL wire (electroluminescent wire) is a flexible wire coated with phosphor which glows blue when applied with the appropriate volt...

Description This battery enclosure (with switch) for the BBC micro:bit is the perfect way to power your micro:bit on the go. Specifications:  2...

This battery holder connects 2 AAA batteries together in series for powering all kinds of projects. We spec'd these out because the box is open ...

This battery holder connects 2 AAA batteries together in series for powering all kinds of projects. We spec'd these out because the box is ni...

ELECFREAKS Power:bit is a kind of micro:bit extension board with minimum size. It is powered by two 2025 button batteries and carries a buzzer o...

USB-powered charger for LIR2032 coin cell batteries.  DO NOT use with non-rechargeable CR2032 batteries!Note: Battery not included! Teknikio mak...

ESC (Electronic Speed Controller) can be divided into brushed ESC and brushless ESC according to the different motor types. It is widely used in t...

3.7V lithium batteries are commonly used in many projects. However, the remaining power and voltage of the lithium battery are highly nonlinear. W...

3 AA battery box with croc-clip-friendly connection points and built-in resettable fuse to protect against short-circuits.The on-board green LED sh...

A lightweight, sewable battery board that's great for paper and fabric engineering projects. Works with CR2032 coin cell batteries. The voltage ...

Here's another addition to our growing family of AA battery holders. A holder for three (3) AA batteries! It's got an 8" long power cable with a...

Get with the times, already! This SparkFun Real Time Clock (RTC) Module is a Qwiic-enabled breakout board for the RV-1805 chipset. The RTC is ...

DISCONTINUED: This product has been discontinued, the page is available for reference and documentation. Today, your router is running 7x24 for onl...

CR2032 Button Cell Battery - Great for use with the Lilypad Switch Battery HolderAdditional Information Button battery safety information Warning: ...

We've got battery holders for all sorts of needs and projects! Waterproof? Here ya go. With a clicky on/off switch? Easy peasy. Here's our lates...

This E-Textiles  Coin Cell Battery Holder has a small slide switch installed on the board, in-line with the power so you can shut off your project ...

Here's another addition to our growing family of AA battery holders. Behold! A holder for four (4) AA batteries! It's got a 5" long power cable ...