

Former engineer that worked on every box from the earliest Kickstarter boxes, to the latest black painted JuiceBoxes. They can all be repaired! I specialize solely in JuiceBox repairs as a hobby, and have fixed a pretty large number of boxes and any problem you can imagine (yes, even if you open it and find it caught fire inside. :) It's a good way to keep memories of my favorite past job alive (the company today is not the same company it was, let's just say), and hopefully prevent some E-waste along the way. I do repairs on JuiceBoxes (my comment buried below at least until it gets more votes), and can repair that for under $200 with a new relay - as long as I can keep buying new relays from the OEM, I'll keep making boards for them and saving fried JuiceBoxes. If you do choose to try this, monitor the temperature of the box after charging for 5, 10, and 20 minutes after fixing it.

Continuing to charge with a damaged relay will often lead to a burnout, making repair much more involved/less reliable. That may unstick it, sure, but the relay damage had already been done. oh, god, please don't do the "bash it on the side" fix. beeeeep.) while the LEDs flash in time with the beep (this is a "1-beep", meaning a general internal self-test failure) - or, on older firmware (without LEDs), it may be 5 beeps (meaning "stuck relay"), repeating with a delay between. If you get a stuck relay, it may either be a single repeating beep (beeeeeep.
