3 x AAA Battery Holder with On/Off Switch, JST, and Belt Clip   ADA3286

This battery holder connects 3 AAA batteries together in series for powering all kinds of projects. The box is slim, and 3 AAA's add up to about 3.3-4.5V, a very similar range to Lithium Ion/polymer (Li-Ion) batteries, plus it has a nifty on-off switch.

3 x AA Battery Holder with On/Off Switch, JST, and Belt Clip   ADA3287

This battery holder connects 3 AA batteries together in series for powering all kinds of projects. The box is compact, and 3 AA's add up to about 3.3-4.5V, a very similar range to Lithium Ion/polymer (Li-Ion) batteries, plus it has a nifty on-off switch.

Adafruit Power Relay FeatherWing   ADA3191

This is the Power Relay FeatherWing. It gives you power to control, and control over power.

4 x AA Battery Holder with On/Off Switch   ADA830

Make a nice portable power pack with this 4 x AA battery holder. It fits any alkaline or rechargeable AA batteries in series. There's a snap on cover and an on/off switch which can be handy when wiring to something without a switch.

VERTER 5V USB Buck-Boost - 500mA from 3V-5V / 1000ma from 5V-12V   ADA2190

Convert just about any battery pack to 5V with VERTER - the fresh new Buck-Boost power converter. VERTER can take battery voltages from 3-12VDC and output a nice 5V DC, which makes it a perfect universal power supply for your portable project!

2-pin JST SM In-line power wire connector

If you have a project where you'd like to be able to detach the wiring, this wire will fit the bill. Its a JST 2.5mm 'free hanging' cable assembly that latches strongly. One wire is marked with a white dashed line. You can't plug these in backwards.

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  Female Connector  ADA318

  £1

  In stock Add to basket
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  Male Connector  ADA319

  £1

  In stock Add to basket

USB to 2.1mm DC Booster Cable

This cable is kinda fascinating - it has an integrated boost converter, so you can plug it into any USB port (from a computer, battery pack, etc) and it will give you a higher DC voltage!

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  9V  ADA2777

  £7

  6 in stock Add to basket
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  12V  ADA2778

  £7

  4 left Add to basket

Adafruit USB Isolator - 100mA Isolated Low/Full Speed USB   ADA2107

Do you have a USB logic analyzer, multimeter or oscilloscope and find yourself bumping up against the frustation of a shared earth ground? This handy little low-cost USB isolator is exactly what you need to provide protection against harmful noise, ground loops, surges, and spikes.

LM3671 3.3V Buck Converter Breakout - 3.3V Output 600mA Max   ADA2745

Your power supply problems just got SUPER SOLVED! This 3.3V Buck Converter Breakout board is great for supplying power to low voltage circuits from a single Li-Ion cell battery or USB power.

PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A - 1000C   ADA2465

PowerBoost 1000C is the perfect power supply for your portable project!