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Power / Batteries

Batteries
Battery Holders / Adapter
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Power Supply / Voltage Regulator
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Renewable Energy
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-46%
1 x AA Battery Holder with Cover and Switch
$1.00 $1.85  
19 pc(s)
This 1xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover and an 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. Dimensions: 69 x 26...
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4 x AA Battery Holder with Switch & Barrel Jack
$3.50  
8 pc(s)
This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover and an ON/OFF switch which can be used to control power to your project. The cable is terminated with a standard 5.5x2.1mm, center positive barrel jack...
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-8%
SparkFun Sunny Buddy - MPPT Solar Charger
$37.50 $40.55  
1 pc(s)
This is the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries. This MPPT solar charger provide you with the ability to get the most possible power out of your solar panel or other photovoltaic device and into a rechargable LiPo battery. Set-up is...
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-9%
LiPo Charger Plus - USB Type-C
$15.00 $16.50  
1 pc(s)
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 iteration, we've changed the input charge connector to USB-C and provided charge rate selection as well as optional thermal protection. Charge,...
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-20%
4 x AAA Battery Holder with Cover and Switch
$2.00 $2.50  
13 pc(s)
Enclosed battery holder for four AAA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the cells. It also features a switch that lets you open and close the electrical connection between the batteries and the holder's leads. The leads are...
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Sunflower Solar Power Manager 5V
$14.50  
2 pc(s)
Solar Power Manager 5V is a small power and high-efficiency solar power management module designed for 5V solar panel. It features as MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar panel. Apart from serving as a solar charger, the module can provide up to...
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Opto-Isolated Relay Module - 16 Channels (5V)
$22.99  
1 pc(s)
This 16 channels Relay Module can be used to control the lighting, electrical and other equipments through the digital IO port. The digital input circuit is optically isolated from the relay, so your controller is protected from voltage spikes and surges. The module is controlled with 5V...
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3.3V, 1A Step-Down Voltage Regulator D24V10F3
$14.50  
5 pc(s)
This D24V10F3 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 3.3V while allowing for a maximum output current of 1 A. This regulator offers typical efficiencies between 80% and 90% and has a very low dropout, so it can be used with input...
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-15%
MOSFET Power Controller
$12.50 $14.75  
2 pc(s)
MOSFETs are awesome. They're like a switch that you flip electronically! This SparkFun MOSFET Power Controller makes it easy to switch a battery supply on and off using your favorite microcontroller. The board also has sewable pads so you can use it in e-textile projects that need more juice....
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-50%
Solar Panel - 18V 2.5W
$18.75 $37.50  
2 pc(s)
Need a clean energy source to power you project? Check out this high quality, high output solar panel. Each panel features high efficient polycrystalline cells mounted onto a fibreglass PCB and covered with epoxy resin which protect the cells without reducing efficiency. A weatherproof plastic...
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5 x AA Battery Holder
$1.30  
21 pc(s)
Battery holder for five AA batteries, terminated with ~150mm leads
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Breadboard Power Supply 5V/3.3V
$2.95  
5 pc(s)
This Breadboard Power Supply Module plugs directly into a solderless breadboard and provides both 3.3V and 5V power directly to the breadboard power rails. The board accepts 7 to 12V DC input via the barrel jack or 5V via the mini-B USB port. It provides two regulated, fuse protected outputs...
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