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.
2007-08-11 23:16:43 · 3 answers · asked by Ikmal 1 in Science & Mathematics ➔ Engineering
The length of the handle is 60 mm.But about 40 mm have been filled with microcontroller,gyroscope, voltage regulator and bluetooth.The voltage and current is different for each electronic component.
Gyroscope: 3V, 9.5 mA
microcontroller: 5V, 75 mA
bluetooth: 3V, 65 mA
2007-08-12 10:51:14 · update #1
There are several small microcontrollers, Bluetooth module and gyroscope available.Go to maxim and national semiconductor .
2007-08-14 14:56:00 · update #2
You need to furnish additional information such as the voltage and ampere requirements of your electrical equipment and the other dimensions of the handle of the baton.
What voltage does the equipment need?
Batteries generally have an amp-hour rating. The life of the battery is inversely proportional to the load requirements.
The handle of the baton has more than a diameter. What is the length of the handle?
There are small cylindrical batteries that will fit inside that diameter. Some are used on cameras, key fob remotes, etc. These will likely have much more amp-hour capacity than the coin battery you're using.
Update:
Summing the three pieces of equipment, you're looking at 150 mA. I'm sure the ampere ratings are worst case values. Using a 6 volt battery you'd get nearly seven hours out of a battery with 1 A-hr.
Below are links to BatteriesPlus.com search results. The first link contains several Duracell Lithium battery options.
The site also includes brand called Nuon, of industrial rechargeable batteries. Unfortunately their site went down before I could find ones with 6 volts. The Nuon ones even provide an A-hr rating.
Try contacting their Customer Support department:
Call 800.677.8278 (toll-free)
Email customersupport@batteriesplus.com
Customer Support Hours:
7:00am–7:00pm Central Time, Monday–Friday
2007-08-12 02:26:40 · answer #1 · answered by Thomas C 6 · 1⤊ 0⤋
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.
2007-08-13 15:01:12 · answer #2 · answered by Poor one 6 · 0⤊ 0⤋
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
2007-08-14 13:55:50 · answer #3 · answered by lancej0hns0n 4 · 0⤊ 0⤋