Hello, I have a project that draws between 90 and 190 milliamps. I need it to run for 10 days constantly. I have been looking at car batteries and smaller sealed lead acid batteries, however, I do come across a lot of ' car battery killed my arduino' posts. It seems using 12-14v input can make th…

electric fence batteries - possible use ?

system September 3, 2011, 9:08pm 5

10 days = 240 hours

200 mA * 240 hours = 48A

I think the batteries should be fine.