My Account

Wish List (0)

PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost

Product Code:ADA-2465

£19.00
Ex.Tax £15.83

Availability: 39

PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost
PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost
PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost
Questions3 Answers3 | Expand All
Charging Current for Small LiPo Battery
A small (500maHr) battery is only supposed to be charged at 250mamp; will this item charge it at too high current?
David Torrens
  • Most Lipo batteries have a max charge rate of 1C, which if the battery capacitor is 500mAh then it will have a charge rate of 500mA, if it's 1000mAh then the max charge rate will be 1000mA etc...

    This device has a smart charger, which optimises the charge rate for the battery:

    The MCP73871 device also limits the charge current based on the die temperature during high power or high ambient conditions. This thermal regulation optimizes the charge cycle time while maintaining device reliability.

    ModMyPi LTD
    Was this answer helpful? 0
Shut Down and Restart
I would like to detect mains fail, shut down the Pi only when battery is discharged and then have the R Pi restart when the mains power comes back on. I get that I can set an interupt to work off the low battery signal. However how do I ensure R Pi starts up agin when power back on since there will be no interuption of power t the Pi.
David Torrens
  • I'm not sure you can. Unless there is a way to wire this up to the RUN pin on the Pi. When RUN is pulled low it will restart the Pi
    ModMyPi LTD
    Was this answer helpful? 0
What happens if the LiPro is empty (Shutdown the RaPi)
How can I shutdown the Raspberry if the LiPro is empty?
Jakob
  • When the LiPo runs out of juice the device just cuts the power to the Pi. There is low battery detection on the board, but you'll need to read up on how to use this.
    ModMyPi LTD
    Was this answer helpful? 0
Showing 1 to 3 of 3 (1 pages)

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 output has been tweaked up 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!

  • 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
  • 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.
  • 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 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).

Just be aware that the charge rate is 1000mA max, and there's some inefficiency during the boosting stage, so make super sure that the USB adapter you're using to charge with is high quality, can supply 2A and has thick power wires. Lower quality ones will not act well due to the voltage drop on the wires or droop on the power supply. This is especially true if you're actually drawing 1000mA out of the PowerBoost 1000C, the MCP73871 maxes out at 1.8A.

This 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, pick up a 3.5mm 2pin block and solder to the output spot where the USB jack would go. Or dont solder anything in for a more compact power pack.

If you're trying to figure out how much current your project is using, check out the CHARGER DOCTOR!

You may get an off-white or black JST connector.

Write a review

Name

Your Review

Note: HTML is not translated!

Rating

Bad           Good

are you happy?

please confirm the selections below are correct

The product is currently Out-of-Stock. Enter your email address below and we will notify you as soon as the product is available.