» 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!
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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.