No one is enthused to find out their car battery died. But just because you left the headlights on overnight doesn’t mean ...

Set up Shortcuts to get alerts when the battery hits 80% for older iPhone models, so you can take your iPhone off the charger ...

When we saw [Max.K]’s automatic NiMh battery charger float past in the Hackaday tips line, it brought to mind a charger that ...

Which is precisely what the Smart Multipurpose Battery Tester from [Open Green Energy] is hoping to address.