Innovative Products for the 21st Century BATTERY MANAGEMENT SOLUTIONS In this application, a normal battery cell would need  22ma to maintain its charge however, not all battery cells  are equal in a battery bank. Some need more current,  some need less. On a typical battery cell, the ICE device  will have 50ma flowing through it in addition to the  nominal charging current for a total of 72mA. This way,  there is some extra current for the ICE devices to give  the cells which need more and for the ICE devices to  take some away from the cells that need less.  TYPICAL INSTALLATION