» Power Supplies
This epoxy-encapsulated monocrystalline solar cell offers 6.7V and 20mA in a 37x33mm package. Now updated with the Miller Engine circuit!
2A Booster DC-DC Step-Up module Micro USB Input 2V-24V to 5/9/12/28V
This adjustable buck converter takes a higher voltage and efficiently cuts it down between 1.23~30VDC, without wasting the power a linear regulator or resistor will.
Have some low-capacity 1S LiPo cells needing a convenient charger? Simple and cheap!
This is a coin cell holder for the common CR2032 type battery. The holder has a neat pop-in, pop-out feature that makes changing the battery easy.
These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry.
Simple LiPo single-cell charger from Sparkfun, with a Micro-USB cable connector.
Switching Power Supply - Perfect for Arduino Uno projects!
When mini buck converters just won't do, 200W should manage it nicely.
Add a High Capacity Rechargeable power supply to your project easily!
DC-DC Converter Step Down Power Module LED Display Output 1.25V-37V
This high discharge 2-cell LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for anything that requires a small battery with a lot of punch.
Simple, no-brainer method to charge up a single cell Li-Ion / LiPo battery.
PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A - 1000C
3.7V 400mAh LiPoly battery with an excellent 2C discharge rate for small projects.
Need more power at 5V? These guys can lift 20 times their body weight!
Need more 7V5 power? These guys can lift 20 times their body weight!
Got a stepper driver running a bit too hot? Vreg going into thermal shutdown? Here's a heatsink, for small applications.
5.1 ~ 5.2V USB Buck Regulator with 2.1A current capability.
DC 3-6V in, 400KV out, high voltage generator inverter... DANGER WILL ROBINSON!!
Use these peel-and-stick heat sinks to remove heat from sensitive ICs. Perfect for Raspberry Pi processors!
Here is a perfect power supply shield for those projects that can use a wall wart!
This is an extremely tiny low voltage to 5VDC converter module.
Small and self-powered, this blue LED voltmeter is a handy monitoring module.
Small and powered from a separate source, this green LED voltmeter is a handy monitoring module.
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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.