The Adafruit PowerBoost 500 Charger is a great power supply for your next portable project. Powered from a 3.7V Li-ion or LiPo battery, it will produce a steady 5.2V output giving you headroom for cable resistance, high inrush currents or maybe a protection diode. Its internal 2A boost converter will supply more than 500mA from sources down to 2V and up to 1000mA from a suitable 3.7V LiPo or Li-ion battery. The TPS61090 chip at the heart of the PowerBoost comes with some useful extra features such as an enable pin which can turn the voltage output off, low battery indication LED, support for iPhone / iPod 500mA charging, and a greater than 90% conversion efficiency.
Turn the board over and you'll find a micro-LiPo charger to keep your 3.7 or 4.2V battery topped up when plugged into a USB port. A yellow LED shows it's charging and a green LED shows when the battery is fully charged. The board will supply power and charge the battery when plugged into a USB port. Please be aware that the 500mA capacity will be split in this case so the battery will charge more slowly depending on how much current your project requires.
Supplied fully assembled plus a USB A socket (host socket). Choose whether to solder on the USB socket to supply a USB peripheral, add your own terminal block or if you prefer it wire directly to the board for a lower profile solution (22AWG recommended). Adafruit provide a free tutorial and the schematics to help you get the most from this handy gadget. A must for every toolbox.
- Power your project from USB or battery
- Automatically switches to battery power when USB is removed
- Micro-USB socket and 2-pin JST battery socket
- USB A socket supplied loose
- Dimensions: 22 x 37 x 2mm (0.9 x 1.5 x 0.08in.)
- Adafruit part no.: 1944
Please note that the battery and phone are not included.
*Customers looking to resell on eBay or Amazon should contact Adafruit directly.
*Customers looking to resell on eBay or Amazon should contact Adafruit directly.
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