3S LIPO Battery Tote with Charge Indicator

thingiverse

This is a battery tote for up to four 3S LIPO batteries. The holds are slightly oversized which should accommodate any velcro or other attachments mechanisms, but also include a friction lock to keep them from sliding out. Each hold contains a "charge indicator" which I use by coloring one side of the battery with a dark sharpie marker or piece of electrical tape. When the battery is fully charged I insert it so that the bright coloring of the case shows through the hole. When the battery is discharged I insert it the opposite way so that the dark part on the battery case blacks out the hole. This makes it really easy to know which batteries are charged and which ones aren't.