|Item model number||2465|
|Item Weight||0.705 ounces|
|Product Dimensions||4.4 x 1.5 x 1.2 inches|
|Item Dimensions LxWxH||4.4 x 1.5 x 1.2 inches|
|Is Discontinued By Manufacturer||No|
|Date First Available||November 3, 2015|
Adafruit PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A - 1000C
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- 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 1000mA+ from a 3.7V LiPoly/LiIon battery. 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
- Full breakout for battery in, control pins and power out. Onboard 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.
- 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)
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PowerBoost 1000C is the perfect power supply for your portable project! With a built-in load-sharing battery charger circuit, you'll be able to keep your power-hungry 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. The 1000C has tweaked to 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 1000C 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! To make this even more useful, Adafruit 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. Since the built-in battery charger has load-sharing, it will automatically switch over to the USB power 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).
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* Can power a Pi with a single cell (3.7v) LiPo or Lithium Ion battery
* Can connect an external 5v power source to power the Pi and charge battery at the same time
* Small package
* When powering the Pi and charging the battery there's only 1000mA to go around. So if you are using 750mA with the Pi you are only charging the battery at 250mA max which takes a really long time to charge for large capacities. For 2 hours of battery use, while powering my project it takes 3.5hrs of charge time for the light to go green.
* Contradicting info on the LBO circuit. There are adafruit admin posts on support forums that contradict what's stated in the manual.
Other than that, I don't think there's anything shocking. There are a lot of ways to hook this up, and a lot that can be done with it. Wire up a SPDT switch between Vs, EN, and Gnd, and you switch the supply on/off. For charging i-products, solder on the USB header that comes with it. It's chunky, so it's not soldered on for you automatically. Note this will NOT work if just placed. You're going to have to solder it. (Yes, this will charge iPads too)
Do you need this? Well, if you're using bigger LiPoly batteries and you don't want them to take forever, then yeah, it'd be nice. If you want to run your project while charging the battery? Then yes. The load-balancing on this thing is great. If you just want to charge a 500mAh LiPoly? No, this is overkill, and will probably kill your battery.