I created this charger as a solution that would take up a small amount of space on my desk and look sleek while printing. There is a hole on one side to allow the led of the charging circuit to show so you know its working. Take a wire and strip it, then wrap it around the ends to create a solid connection. There is no tension so its not a tight fit, but after making this I couldn't find a battery it wouldn't work with as long as you don't knock it over. Its a tight enough fit that you shouldn't need any glue or anything either!