A battery of a cardiac stimulation device may experience voltage delay problems caused by a passivation layer that forms on the anode of the battery. To inhibit voltage delay, the battery is periodically used to charge the capacitor to a partial charge. Both the charge time and the interval between charges...http://www.google.com.au/patents/US7324849?utm_source=gb-gplus-sharePatent US7324849 - Methods and devices for inhibiting battery voltage delays in an implantable cardiac device
