Nice pics!

I had over twenty 7.2v batteries in inventory of various sizes and was pretty good about cycling them until about a year or so ago. I've spent the last two weeks re-conditioning them and most have come back to life but some have not. Some of the ones that take great charges don't last as long as they used to. Regular PMs are essential! However, Most of the batteries were purchased in 2006 with a few stragglers after that. How long do your batteries last? My good ones are Venom 3600 and 4200 sticks. Surprisingly I have a couple of old Heng Long 2000mah and Mato Mart 2000mah that are still just fine too.