Nine trouble free, no maintenance years on the same lead acid batteries! Sounds like he unreasonably expected every part of his system to run flawlessly until t

Nine trouble free, no maintenance years on the same lead acid batteries! Sounds like he unreasonably expected every part of his system to run flawlessly until the end of time. That solar controller has been hard at work every day for nine years. It is unfortunate that most of not all parts of his system are manufactured outside the country but that's true for his cars and computers too.