I'm intrested in building a battery charger for "big" aircraft NiCd battery. I want to use Arduino as controller for special charge/discharge cycles. I need a tension measurement in order to start some duty charge or discharge, a current controller in order to charhge the battery at due Amps, a thermometer to check battery temperature and a timer to control overall situation an cycle time. Battery can be 12V or 28V, charge current can go up to 15/20A. Best way to charge battery is working on single cell, so I will need to control up to 20 cells (cell tension, charging time, charging amps, temperature). Final price shoult be lower than shop price, quality MUST be higher... as usual when you use Arduino ;)
I can't find a redy project on web so I need your brainstorming to find the best solution for this "game".
Many thanks to any... intrested brain. 8)