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SparkFun 3.3V Step-Up Breakout - NCP1402
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Price: $11.30
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Availability: Back Order
Item #: PRT-10967 -

"The NCP1402 is a 3.3V DC-DC converter. The breakout board will accept voltage inputs between 1 and 3 Volts (such as 1 or 2 AA batteries) and output a constant, low ripple 3.3V output capable of sourcing up to 200 mA. This board is great for supplying power to 3.3V sensors or providing 3.3V from a a single AA battery. The breakout board includes the necessary peripheral components. The input, output and ground pins are broken out on a 0.1" grid to allow easy access on a breadboard. Documents:...

SparkFun 5V Step-Up Breakout - NCP1402
Price: $10.35
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Item #: PRT-10968 -

"The NCP1402 is a 5V DC-DC converter. This breakout board will accept voltage inputs between 1 and 4 Volts and output a constant, low ripple 5V output capable of sourcing up to 200 mA. This board is great for supplying power to 5V sensors on a 3.3V board, or providing 5V from a AA battery. The breakout board includes all of the necessary peripheral components. The input, output and ground pins are broken out on a 0.1" grid to allow easy access on a breadboard. Documents: Schematic Eagle...

SparkFun Power Cell - LiPo Charger/Booster
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Price: $34.69
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Availability: Stocked
Item #: PRT-11231 -

"The PowerCell board is a single cell LiPo boost converter (to 3.3V and 5V) and micro-USB charger in one. The board comes with a JST connector for a single cell LiPo battery, a micro-USB connector for the 5V charge input, and selectable 3.3V and 5V output pins (labeled ‘out’). There are also two charge pins broken out (labeled ‘charge’), so you can use another 5V power source to charge the batteries, if you don’t have a micro-USB cable. We’ve also broken out...

Button Cell Battery - 11.6mm (LR44)
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Price: $1.65
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Availability: Back Order
Item #: PRT-11305 -

"These LR44 button cell batteries are fairly common but it can be hard to keep them around. They fit our digital calipers, so if you use yours as much as we use ours, you may want to go ahead and pick up a spare. Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please do not hesitate to contact us to see if further actions may be taken. Features: 1.5 VDC R44 Size Button Cell Zinc-Manganese Alkaline Compatible with LR1154, AG13, A76, 157, etc. " ...

Coin Cell Battery - 20mm (CR2025)
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Price: $3.39
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Availability: Stocked
Item #: PRT-11928 -

"This is the CR2025 20mm coin cell battery. You may be wondering what sets this guy apart from the more common CR2032 coin cell battery, the answer is actually quite important. The CR2025 is actually 0.7mm thinner, than the CR2032, and is only rated at 165mAh. Some applications need a thinner battery to conserve space, and the CR2025 fits the bill. This thin guy is a perfect mid-sized battery for calculator and remote control applications! Note: Due to the requirements of shipping these...

Battery Holder 4xAA with Cover and Switch
Price: $3.39
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Item #: PRT-12083 -

"This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 150mm, and the last 5mm of them are tinned."

Coin Cell Battery Holder - 2xCR2032 (Enclosed)
Price: $3.39
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Availability: Back Order
Item #: PRT-12618 -

"This is a simple coin cell battery holder that can enclose two CR2032 batteries inside itself, and safely kept closed via two phillips head screws. Each battery holder will run batteries in series, output up to 6V, and is equipped with an On/Off slide switch and two 6" power wires (one positive and one negative) on the back."

SparkFun USB LiPoly Charger - Single Cell
Price: $27.74
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Availability: Stocked
Item #: PRT-12711 -

"If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun USB LiPo Charger is a basic charging circuit that allows you to charge 3.7V LiPo cells at a rate of 500mA or 100mA. It is designed to charge single-cell Li-Ion or Li-Polymer batteries. The board incorporates a charging circuit, status LED, selectable solder jumper for 500mA or 100mA charging current, external LED footprint, USB input, two pre-installed JST connectors for SYS OUT and BATT...

Battery Holder - 1xAAA (PTH)
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Price: $0.87
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Availability: Back Order
Item #: PRT-12718 -

"PCB mount clip to hold a AAA battery. Sold in single units, you’ll need two for each battery. These work great for small, low power applications that need a battery to run. Low cost and easy to use! Documents: Datasheet "

Battery Holder - 1x18650 (wire leads)
Price: $1.74
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Availability: Stocked
Item #: PRT-12899 -

"This is an incredibly simple one cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlights first, which is fair since that is what they have been primarily used for. However, with this battery holder you will gain the ability to incorporate 18650 cells into applications like robotics or prototyping by simply dropping one into this device and attaching the leads, that’s it. Every 18650 Battery Holder is equipped with two 6" cables for power and...

Battery Holder - 2x18650 (wire leads)
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Price: $2.61
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Item #: PRT-12900 -

"This is an incredibly simple two cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlights first, which is fair since that is what they have been primarily used for. However, with this battery holder you will gain the ability to incorporate 18650 cells into applications like robotics or prototyping by simply dropping one into this device and attaching the leads, that’s it. Every 18650 Battery Holder is equipped with two 6" cables for power and...

SparkFun LiPo Fuel Gauge
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Price: $19.04
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Item #: TOL-10617 -

"LiPo batteries are a great way to power your projects. They’re small, lightweight, and pack a pretty good punch for their size. Unfortunately, even the best batteries eventually run low on power and when they do it’s often unexpected (and at the worst time). Don’t be caught by surprise next time your board suddenly powers-down! The SparkFun LiPo Fuel Gauge connects your battery to your project and uses a sophisticated algorithm to detect relative state of charge and direct...

SparkFun Wake on Shake
Price: $45.13
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Availability: Stocked
Item #: SEN-11447 -

"Have you ever wanted your project to just “hibernate” until someone picks it up or moves it? It’s a great strategy for dramatically extending the battery life of a widget that doesn’t need to be active all the time. The SparkFun Wake-on-Shake board is designed to make it really simple to do just that! The Wake-on-Shake, based on a concept by Nitzan Gadish of Analog Devices, combines the ATTiny2313A with the ADXL362 low-power MEMS accelerometer to cut power to your...

SparkFun LiPo Charger Basic - Mini-USB
Price: $15.56
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Availability: Stocked
Item #: PRT-10401 -

"If you need to charge LiPo batteries, this simple charger will do just that. It is designed to charge single-cell Li-Ion or Li-Polymer batteries. Check the datasheet below to see if it will work with your battery. The board incorporates a charging circuit, status LED, connector for your battery (JST-type used in the batteries we carry), and a mini-USB connector. However, we do not recommend this charger with a 110mAh battery. Note: This version uses a mini-USB cable. We also have this charger...

Coin Cell Battery - 20mm (CR2032)
Price: $2.76
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Availability: Stocked
Item #: PRT-00338 -

"CR2032 Lithium metal 3V 250mAh button cell battery. Great for powering low power processors or blink an LED for weeks at a time. Note: Due to the requirements of shipping these batteries, orders may take longer to process and therefore do not qualify for same-day shipping. Sorry for any inconvenience this may cause. Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please do not hesitate to contact us to see if further actions may be taken....

Coin Cell Battery Holder - 20mm (SMD)
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Price: $1.65
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Availability: Stocked
Item #: PRT-11892 -

"Now for all of your coin cell battery surface mount needs, the 20mm SMD Coin Cell Holder. This holder fits our 20mm Lithium Ion coin cell battery and holds the battery in place with friction. The metal housing connects to the positive (+) side of the battery and the PCB pad underneath is connected to the negative (-) side. Documents: Datasheet "

Battery Holder - 18650 (PTH)
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Price: $1.30
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Availability: Back Order
Item #: PRT-13113 -

"This is a PCB mount clip to hold a 18650 Lithium Ion Cell battery. Each battery holder is sold in single units, you’ll need two for each battery. These work great for larger, high capacity applications where a drop-in rechargable cell is needed. These little guys are low cost and easy to use! Note: This part can be found in the Electromechanical Eagle library under ‘Battery18650’. Documents: Datasheet Product Video " ...

SparkFun Battery Babysitter - LiPo Battery Manager
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Price: $34.69
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Item #: PRT-13777 -

"The SparkFun Battery Babysitter is an all-in-one single-cell Lithium Polymer (LiPo) battery manager. It’s half battery charger, half battery monitor, and all you’ll ever need to keep your battery-powered project running safely and extensively. The Battery Babysitter features a pair of Texas Instruments LiPo-management ICs: a BQ24075 battery charger and a BQ27441-G1A fuel gauge. The charger supports adjustable charge rates of up to 1.5A, as well as USB-compliant 100mA and 500mA...

Battery Holder - 2xAAA with Cover and Switch
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Price: $2.61
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Availability: Back Order
Item #: PRT-14219 -

"This 2xAAA battery holder puts a nice finishing touch on your battery-powered project. This holder features a sliding, removable cover as well as an ON/OFF switch that can be used to control power to your project. The leads are about 150mm long, and the last 5mm of them are tinned. Features: 63 x 25 x 15mm "

micro:bit Battery Holder - 2xAA (JST-PH)
Price: $2.61
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Availability: Back Order
Item #: PRT-14299 -

"This is a unique two-cell AA 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 perfectly, allowing you to easily make your project battery powered."

Global Power Supply - 15V 4.34A
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Price: $66.86
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Availability: Back Order
Item #: PRT-14338 -

"This isn’t your ordinary power supply. The Global Power Supply is a 15V, 4.34A power device specifically designed to work with the JustBoom Amp HAT for the Raspberry Pi. Additionally, as this is a “global” power supply, each order includes plug adapters for the United States, United Kingdom, EU and Australia. This supply is capable of high loads, so we recommend that you exercise caution while using it. Features: Universal / Full-range AC input Power Supply Output Type:...

SparkFun Adjustable LiPo Charger
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Price: $20.78
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Availability: Back Order
Item #: PRT-14380 -

"The SparkFun Adjustable LiPo Charger is a single-cell lithium polymer (LiPo) and lithium ion battery charger. Because it’s adjustable, this charger will be able to safely charge most of our single-cell batteries with ease. With its onboard charge rate selector, you will be able to set the maximum amount of current to charge your battery from 15mA to 500mA. Once the board is configured for the battery, you can connect power from either a microUSB cable or the pins below the USB connector...

SparkFun LiPo Charger/Booster - 5V/1A
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Price: $27.74
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Availability: Back Order
Item #: PRT-14411 -

"The SparkFun 5V/1A LiPo Charger/Booster is a no-nonsense circuit for generating one amp from a Lithium Polymer battery at 5V. This LiPo charger is a very economical choice that is equipped with a simple booster circuit utilizing the PAM2401 IC, and includes protection diodes so you can run multiple cells in series for an extra kick. While the booster circuit is in operation, this board can draw more current the lower the input voltage, making it perfect to deliver a strong charge in a small...

Tenergy T4s Intelligent Universal Charger - 4-Bay
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Price: $54.69
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Availability: Back Order
Item #: TOL-14457 -

"The 4-Bay T4s Intelligent Universal Charger from Tenergy is an automatic smart charger compatible with almost all types of rechargeable batteries, thereby eliminating the need to own multiple chargers. Capable of automatically identifying and charging Lithium Ion (Li-ion), LiFePO4, NiMH and NiCD rechargeable batteries, the T4s applies the appropriate charging mode, whether it be a constant charge current (CC), constant charge voltage (CV) or trickle charge. The T4s is able to independently...