Hi guys, I just relaunched Solderdoodle Plus, which is a cordless all-in-one soldering iron, 3D print finishing tool, and wood burning tool on Kickstarter. It's double the power of the original Solderdoodle and can solder up to 14 ga wire. It also has a charge controller on each lithium ion cell with isolated grounds, so each cell charges independently. Here's a link if you'd like to check it out:
https://www.kickstarter.com/projects/249225636/solderdoodle-plus-cordless-usb-rechargeable-hot-mu?
Isaac