Can bike battery be removed to charge?Updated a day ago

Batteries can be positioned differently on the bike frames:

Position	Image	Easy to Remove Battery?
Built into the downtube frame		Yes, using a key. The key hole is visible on frame. The battery is the black part next to the key and it slides out.
Inside the downtube		No key hole is visible on frame. Not simple, can only be removed by detaching some of the cables and feeding it out of the tube.   You will need to bring the bike closer to the power point to charge.
Attached on downtube		Yes, using a key. You can slide out the battery.
Attached to rear rack		Yes, using a key. You can slide out the battery.
Attached on Rear frame		Yes, using a key. You can slide out the battery.
Inside the folding frame		Present on Folding bikes (E-Glide V2). There is a key slot on the part where the bike folds. Battery slides out.