{"product_id":"powerboost-500-charger-rechargeable-5v-lipo-usb-boost-500ma","title":"PowerBoost 500 Charger - Rechargeable 5V Lipo USB Boost @ 500mA+","description":"\u003cp\u003ePowerBoost 500C is the perfect power supply for your portable project!\u003c\/p\u003e\n\u003cp\u003eWith a built-in battery charger circuit, you'll be able to keep your project running even while recharging the battery!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis 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.\u003c\/li\u003e\n\u003cli\u003eoutput tweaked 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.\u003c\/li\u003e\n\u003cli\u003eThe 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. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 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. \u003ca href=\"http:\/\/www.ti.com\/product\/tps61090\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out these specs!\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSynchronous operation means you can disconnect the output completely by connecting the \u003cstrong\u003eEN\u003c\/strong\u003eable pin to ground. This will completely turn off the output\u003c\/li\u003e\n\u003cli\u003e2A 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!\u003c\/li\u003e\n\u003cli\u003eLow battery indicator LED lights up red when the voltage dips below 3.2V, optimized for LiPo\/LiIon battery usage\u003c\/li\u003e\n\u003cli\u003eOnboard 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.\u003c\/li\u003e\n\u003cli\u003eFull breakout for battery in, control pins and power out\u003c\/li\u003e\n\u003cli\u003e90%+ 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)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTo make this even more useful, Adafruit 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. \u003cspan\u003eYou do have to always have a LiPo plugged into manage the load spikes, it's not optional!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eEach 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, you'll need to solder a 3.5mm 2pin block (not included) to the output spot where the USB jack would go. Or don't solder anything in for a more compact power pack.\u003c\/p\u003e\n\u003cp\u003eYou can also solder a switch in to create an output on\/off switch!\u003c\/p\u003e\n\u003cp\u003eEach order comes with a fully assembled and tested PowerBoost 500C + USB jack. Does not come with a Lipoly or LiIon battery, just pick one with more than 500mAh of capacity. Also doesn't come with the nice iPhone or charger cable.  Be sure to read \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-powerboost-500-plus-charger\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAdafruits lovely tutorial\u003c\/a\u003e for details, schematics, and more!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":821043285,"sku":"ADA1944","price":14.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1944.jpg?v=1404206993","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/powerboost-500-charger-rechargeable-5v-lipo-usb-boost-500ma","provider":"Pimoroni Ltd","version":"1.0","type":"link"}