Achieving full charge with solar system
Here is a question for the learned solar system folks.. I have a Tracer 40 am MPPT charge controller and a Xantrex 20a smart charger. Currently, the Xantrex is across the batteries. I do have maste...
Forum Discussion
smkettner wrote:MEXICOWANDERER wrote:Is there a difference between spring wound and electronic timers?
"Smart" anything is like allowing the government to think for you. I've got plans to place the "smart" out of circuit from 90% SOC upwards and hammer the batteries direct from the panels -time limited by utilizing a spring wound timer-
Spring-wound timers last thousands of cycles. They do not have LCD screens that go berserk when a .003 cent chip fails. Don't need 4X reading glasses and a hypodermic needle to fondle the pinpoint buttons. Twist the dial and walk away.
Intermatic timers are not cheap. But they last decades and can be used for AC or DC up to 240-volts. Gotta transient voltage spike that resembles the profile of the Washington Monument? The electronic timer goes Chernobyl while the spring-wound laughs. Not for intermittent timing. One shot, and they are available up to 24-hours duration. No they are not pinpoint precise and neither is a battery undergoing a charge.
One 15-minute timer has lasted 10-years and maybe 3,000 cycles powering a 2,200 watt 120vac instant hot water shower element heatings. That says something.
