Well, I left it plugged in for 5 hours, and it's still showing as 75% charged. Anyone else have any ideas?

@robski Yeah, it sure looks like it's plugged in correctly. I also checked the pogo pins on the inside that connect the bottom half to the top half, and they seem to be outputting around 4v. I'll leave it connected to the charger for longer and see if it charges properly.

I noticed that my Cardputer was starting to run out of batteries, but I have no idea how to charge it. Plugging it in turns it on, but there's no charging indicator that I can see. Leaving it plugged in can bring the battery level up, but it doesn't seem to last more than 30 seconds off the charger before showing that it's lost a significant level of battery percentage. I've tried plugging it in with the power switch both ways, but neither seems to be effective. Am I overthinking this, or is there a step I'm missing?