Taking a break

 We're taking a break moving shop and hope to be back soon. We hope to start shipping orders in Nov 2018. 

PowerBoost 500C is the perfect power supply for your portable project! With a built-in battery charger circuit, you'll be able to keep your project running even while recharging the battery! This little DC/DC boost converter module can be powered by any 3.7V LiIon/LiPoly battery, and convert the battery output to 5.2V DC for running your 5V projects.

We tweaked the output to be 5.2V instead of a straight-up 5.0V so that there's a little bit of 'headroom' for long cables, high draw, the addition of a diode on the output if you wish, etc. The 5.2V is safe for all 5V-powered electronics like Arduino, Raspberry Pi, or Beagle Bone while preventing icky brown-outs during high current draw because of USB cable resistance.

The PowerBoost 500C has at the heart a TPS61090 boost converter from TI. This boost converter chip has some really nice extras such as low battery detection, 2A internal switch, synchronous conversion, excellent efficiency, and 700KHz high-frequency operation. Check out these specs!

  • Synchronous operation means you can disconnect the output completely by connecting the ENable pin to ground. This will completely turn off the output
  • 2A internal switch (~2.5A peak limiting) means you can get 500mA+ from a 3.7V LiPoly/LiIon battery. We had no problem drawing 1000mA, just make sure your battery can handle it!
  • Low battery indicator LED lights up red when the voltage dips below 3.2V, optimized for LiPo/LiIon battery usage
  • Onboard 500mA charge-rate 'iOS' data resistors. Solder in the USB connector and you can plug in any iPhone or iPod for 500mA charge rate. Not suggested for large iPads.
  • Full breakout for battery in, control pins and power out
  • 90%+ operating efficiency in most cases (see datasheet for efficiency graphs), and low quiescent current: 5mA when enabled and power LED is on, 20uA when disabled (power and low batt LED are off)

To make this even more useful, we stuck a MicroLipo charger on the other side. The charger circuitry is powered from a microUSB jack, and will recharge any 3.7V/4.2V LiIon or LiPoly battery at 500mA max rate. There's two LEDs for monitoring the charge rate, a yellow one tells you its working, a green one lights up when its done. You can charge and boost at the same time no problem, without any interruption on the output so its fine for use as a "UPS" (un-interruptable power supply). Just be aware that the charge rate is 500mA max, so if you're drawing more than ~300mA continuously from the 5V output side, the battery will slowly drain since the charge rate is less than the dis-charge rate.

Great for powering your robot, Arduino project, single-board-computer such as Raspberry Pi or BeagleBone! Each order comes with one fully assembled and tested PCB and a loose USB A jack. If you are powering your project from USB, solder the USB A jack in (a 3-minute soldering task). If you would like to use a terminal block, pick up a 3.5mm 2pin block here and solder to the output spot where the USB jack would go. Or don't solder anything in for a more compact power pack.

Each order comes with a fully assembled and tested PowerBoost 500C + USB jack. Does not come with a Lipoly or LiIon battery. Also doesn't come with the nice iPhone or charger cable. Be sure to read our lovely tutorial for details, schematics, and more!

If you're trying to figure out how much current your project is using, check out the CHARGER DOCTOR or USB Power Detectors.

Technical Details

  • Dimensions: 22mm x 37mm x 2mm / 0.9" x 1.5" x 0.08"
  • Height w/ JST: 7mm / 0.3"
  • Weight: 4g

Learn

Upgrade your ride with lots, and lots of NeoPixels!
Your all-in-one Lipoly Charger+Booster solution for on-the-go projects

PowerBoost 500 Charger - Rechargeable 5V Lipo USB Boost @ 500mA+ [1944]

  • Brand: Adafruit
  • Product Code: ADA-1944
  • Reward Points: 15
  • Availability: 2
  • £19.14

  • Ex Tax: £15.95
  • Price in reward points: 200

AA Battery Boost Module - 5V

AA Battery Boost Module - 5V

£10.74

Pop in two dry batteries, flip the power switch, and you will have a 5V output to power your circuit

Qty: 4

PowerBoost 500 Basic - 5V USB Boost @ 500mA from 1.8V+ [1903]

PowerBoost 500 Basic - 5V USB Boost @ 500mA from 1.8V+ [1903]

£13.13

This little DC/DC boost converter module can run from 1.8V batteries or higher, and convert that ...

Out Of Stock

PowerBoost 1000 Basic - 5V USB Boost @ 1000mA from 1.8V+ [2030]

PowerBoost 1000 Basic - 5V USB Boost @ 1000mA from 1.8V+ [2030]

£20.34

This little DC/DC boost converter module can run from 1.8V batteries or higher, and convert that ...

Qty: 2

PowerBoost 500 Shield - Rechargeable 5V Power Shield [2078]

PowerBoost 500 Shield - Rechargeable 5V Power Shield [2078]

£25.02

This stackable shield goes onto your Arduino and provides a slim rechargeable power pack, with a ...

Out Of Stock

VERTER 5V USB Buck-Boost - 500mA from 3V-5V / 1000ma from 5V-12V [2190]

VERTER 5V USB Buck-Boost - 500mA from 3V-5V / 1000ma from 5V-12V [2190]

£11.86

VERTER can take battery voltages from 3-12VDC and output a nice 5V DC

Qty: 4

PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A - 1000C [2465]

PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A - 1000C [2465]

£25.14

With a built-in load-sharing battery charger circuit, you'll be able to keep your power-hungry ...

Qty: 1