Handy calculator for all the effects pertaining to internal resistance

Hi LPF,

I made this calculator in Excel that can calculate the current draw of the driver, the run time of the battery and a lot more all influenced by the internal resistance of a battery. This calculator works only for boost drivers ATM but if there is enough interest I'll try to make one for buck drivers too. A lot of time went into this and I hope you like it. If you see a problem in my formulas please tell me so I can correct it. :thanks: for looking! Sorry for the Zip file but I can't upload spreadsheets directly.

148 views and no replies yet?:anyone:

Ill have to look in the morning I only have my iPad with me tonight!