{"product_id":"powerboost-1000-charger-rechargeable-5v-lipo-usb-boost-1a-1000c","title":"PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A - 1000C","description":"\u003cp\u003ePowerBoost 1000C is the perfect power supply for your portable project!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWith a built-in load-sharing battery charger circuit, you'll be able to keep your power-hungry project running even while recharging the battery!\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/shop.pimoroni.com\/products\/powerboost-500-charger-rechargeable-5v-lipo-usb-boost-500ma\"\u003eIf you dont need the 1A battery charger, smart load-sharing, or 1A iOS resistors, check out the Powerboost 500C\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eAdafruit 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.\u003c\/p\u003e\n\u003cp\u003eThe PowerBoost 1000C has at the heart a \u003ca href=\"https:\/\/www.ti.com\/product\/TPS61090\"\u003eTPS61090 boost converter from TI\u003c\/a\u003e. 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!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSynchronous operation means you can disconnect the output completely by connecting the ENable 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 1000mA+ from a 3.7V LiPoly\/LiIon battery. 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 1000mA charge-rate 'iOS' data resistors. Solder in the USB connector and you can plug in any iPad, iPhone or iPod for 1000mA charge rate.\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, they stuck a smart load-sharing Lipoly 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 1000mA 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.\u003c\/p\u003e\n\u003cp\u003eSince the built-in battery charger has load-sharing, it will automatically switch over to the USB power at the Micro USB input when available, instead of continuously charging\/draining the battery. This is more efficient, and lets you charge-and-boost at the same time without any interruption on the output so its fine for use as a \"UPS\" (un-interruptable power supply).\u003c\/p\u003e\n\u003cp\u003eJust be aware that the charge rate is 1000mA max, and there's some inefficiency during the boosting stage, so \u003cstrong\u003emake super sure that the USB adapter you're using to charge with is high quality, can supply 2A and has thick power wires\u003c\/strong\u003e. Lower quality ones will not act well due to the voltage drop on the wires or droop on the power supply. This is \u003ca href=\"https:\/\/cdn-shop.adafruit.com\/datasheets\/MCP73871.pdf\"\u003eespecially true if you're actually drawing 1000mA out of the PowerBoost 1000C, the MCP73871 maxes out at 1.8A\u003c\/a\u003e. \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\u003eThis charger-booster is 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, solder a 3.5mm 2pin block to the output spot where the USB jack would go. Or dont solder anything in for a more compact power pack.\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":3226459969,"sku":"ADA2465","price":19.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2465.jpg?v=1433167034","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/powerboost-1000-charger-rechargeable-5v-lipo-usb-boost-1a-1000c","provider":"Pimoroni Ltd","version":"1.0","type":"link"}