BatMon R/C Battery Fuel Gauging Project

The Official BatMon Web site

As Featured in the June 2002
Issue of Circuit Cellar Magazine

BatMon is a radically different R/C battery monitoring system. It uses a sophisticated battery fuel gauge technology and performs mAH (milliamp hour) capacity measurements by carefully monitoring the actual current that goes in and out of your R/C system’s battery pack.

The alpha numeric display shows the battery condition as a 0-9 level or actual mAH value, all at the touch of a button. The blue colored super-bright status LED can be remotely mounted and is easily seen from several dozen yards -- perfect for fly-by battery checks.
It plugs into your receiver and battery pack using standard R/C connectors. It can be mounted in your R/C model using double sided tape or held with rubber bands. It is well suited for most R/C aircraft, cars, and boats. The photo on the left shows it mounted in a model helicopter.

Have Questions? Need Help?

Please visit our Frequently Asked Questions Page.

Design Documents:

The BatMon Project's technical details were discussed in the June 2002 issue of Circuit Cellar Magazine. Article reprints are available from them. For your convenience, article corrections and project updates are available here as file downloads. There is no charge for this online information.

BatMon is a firmware (software) based design. There is no charge for the firmware when used in your personal hobby projects. However, commercial use is forbidden unless written approval is granted by us.

Please be aware that the downloadable information is copyright protected, so you are not authorized to republish it, distribute it, or sell it, in any form. If you wish to share it, please do so only by providing a link to this web site. As such, you are granted permission to post links to http://www.digitalproductsco.com/batmon/. Direct links to our files or photos is NOT allowed. Please respect this simple request.

User Manual: User Instruction Guide for BatMon, PDF Format. Files size: 295K bytes.
Revision A9, Updated 06-17-2002.

Article Corrections: Text corrections for the Circuit Cellar Magazine article are found here.
Updated 06-10-2002.

Schematic Files: BatMon circuitry and bill-of-materials, PDF Format. All components are from http://www.digikey.com/.
Revision A0. No changes to magazine release.

PIC Firmware: Source and Hex files to the BatMon firmware. You should occasionally check for updates.
Version V1.1 No changes to magazine release.

DS2438 Data Sheet: Dallas Semiconductor's DS2438 Data Sheet. PDF file, Twenty-nine pages. Files size: 350K bytes.

Have Questions? Need Help?

Please visit our Frequently Asked Questions Page.

	User Manual: User Instruction Guide for BatMon, PDF Format. Files size: 295K bytes. Revision A9, Updated 06-17-2002.
	Article Corrections: Text corrections for the Circuit Cellar Magazine article are found here. Updated 06-10-2002.
	Schematic Files: BatMon circuitry and bill-of-materials, PDF Format. All components are from http://www.digikey.com/. Revision A0. No changes to magazine release.
	PIC Firmware: Source and Hex files to the BatMon firmware. You should occasionally check for updates. Version V1.1 No changes to magazine release.
	DS2438 Data Sheet: Dallas Semiconductor's DS2438 Data Sheet. PDF file, Twenty-nine pages. Files size: 350K bytes.