Datasheet

(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. (http://adafru.it/e5A) This one

from Adafruit is ideal and has been tested (http://adafru.it/e5A), 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

https://learn.adafruit.com/adafruit-powerboost-1000c-load-share-usb-

charge-boost

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