A tiny 25 x 14mm simple breakout board for a USB 3.0 receptacle and 5V/GND screw terminals.

Just ordered a breakout for LTC2942 single cell lithium battery gas gauge, an I2C controlled coulomb counter. Interesting companion to BQ25895?

TI  recently released an IC combining a single cell 5A lithium charger and 3.1A 5V booster: the BQ25895. Below a working test circuit. Writeup soon.

A little thermo/altimeter and 500mA USB charger wrapped into one. PCB fabbed, circuit tested, enclosure coming up, writeup soon!

An MPPT portable charger, 3A @ 5.2V output, coulomb counter and USB dataline voltages included. Finalising design, writeup soon!