So I 've had my insight for about 4 1/2 years. It came with a grid charger and as of about six months ago, I have been grid charging with some success. As of late, I've been getting the typical IMA codes which indicate a bad battery. I'd reset it and sometimes it would last a couple of hundred miles and other times it would pop the code after only a few miles. I decided to make the investment in a Hybrid Automotive Discharger which I just put in this morning. The install was straight forward except for one thing; a family of mice decided to make a home in the IMA battery area. They took particular interest in the cooling fan area and built quite a nest in the void between the fan and the battery. I cleaned it out and the fan works as it should. I've read that the Achilles Heel of the Honda IMA battery is cooling so I can't imagine having 80% of the cooling compromised would be very good for the whole system. Anyway, I'm discharging right now as per the instructions. I will post the results of my discharge journey. I figure the whole process is going to take about a week. I am hoping it will breathe new life into my marginal battery.