I am doing a project on electronic baton.I want it to look exactly like baton used by professional orchestra conductor.I stored the electronic components inside the handle of the baton.The problem is the space is very limited.The maximum diameter of the handle only about 18 mm.I need to choose a battery that also stored inside the handle.I want the battery that could work for long time.However what I can see the coin battery that is small only have small energy in it.It will only last for less than 1 hour.It is not good for new product.What can I do to maximize amount of energy so baton can work for longer time? ideally 10+hours or minimum of 5 hours and can fit inside small handle.I dont want to use external power cable.Hope you guys can help me.Really appreciated all of your helps.
Lithium batteries tend to offer best size to power ratio right now. They are available in rechargeable and disposable. Take a trip to Walmart bearing in mind you may find something you like that is designed to go into something else such as a replacement battery for a cell phone or camera etc.
what i can't believe is that you've found a gyroscope, microcontroller, and bluetooth circuitry to fit in there - please tell us the manufacturer and part numbers for your parts - i would love a microcontroller that small - not to mention bluetooth
