Adafruit bq25185 USB / DC / Solar Charger with 5V Boost Board

We're always on the look out for better ways to make projects portable: being able to charge your battery in the most convenient manner will let projects run no matter what power is available. Then we added a power supply chip with it to let you run your project without a separate board. The result is the Adafruit bq25185 USB / DC / Solar Charger with 5V Boost Board!

It uses the new bq25185 is a nifty charger chip with fairly high charge current, power path support, and the ability to charge from USB, DC or solar power. It's also a great value, so it's a good upgrade from MCP73833 or MCP73831-based charger boards. The boost converter is the TPS61023, which will give up to 1 Amp output with good efficiency, to squeeze the most power possible out of your battery.

This board is meant to be everything you need to power your 5V electronics: simply connect a 500mAh or larger battery to the JST PH 2-pin port, then charge it when you can from USB or DC/solar. At the other end is a terminal block which will provide the 5V output from the boost converter. 

• USB Type C connector with 5.1k CC resistors so it will work with any computer or power supply to get 5V and up to 1A. Data lines available if needed, on the bottom breakout.
• Separate DC or Solar Input - Two pads on the edge can be used to connect a 5 ~ 18V power supply, which can be used instead of USB. If the input is a solar panel, the charging chip will adjust the current draw so that the voltage does not dip below the battery, thus optimizing the solar power input. No large capacitor needed to stabilize it, and you get near-MPPT capability without the cost and complexity of MPPT.
• Default charge rate of 1A, but you can cut the jumper on the back to set the rate to 500mA
• Power Path to Load - If the 5V load connector is drawing current while the USB / DC/Solar power is attached, it will default to drawing current from the charger and any left over current will go to the battery. That keeps your battery from constantly charging/discharging which will reduce the battery life.
• Regulated 5V Output - a boost converter will take the load output from the bq25185 and convert it to 5V at 1 Amp max load. Note the TP61023 cannot turn on/off high loads, it will stall over 200mA. That means its not going to like it if you have a high current load that instantly draws full current on power up, like a resistive dummy load. The vast number of microcontroller projects will start up with