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Xringer · 07-18-16, 10:29 AM

One advantage of using old-tech batteries is their availability.
If your high-tech rig fails during a four day power outage,
Amazon isn't going to be delivering any new parts to your door..

But, you can most likely find a used car battery, if your sealed LA pack fails.
Or, you can hook up to your car battery. Which can be charged during a totally overcast sky..
If you were worried about the MPPT charger failing, a cheap PWM charger could be in your spares box..

As nice as having a Pure Sinewave AC source sounds.. Do you really need it?
If you don't foresee needing 120vac, you could still buy a low cost 100W to 400w unit, just in case..
I think COTEK has them on Amazon.. Just need to have the Amp hours to feed it..

07-18-16, 10:29 AM	#7
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	One advantage of using old-tech batteries is their availability. If your high-tech rig fails during a four day power outage, Amazon isn't going to be delivering any new parts to your door.. But, you can most likely find a used car battery, if your sealed LA pack fails. Or, you can hook up to your car battery. Which can be charged during a totally overcast sky.. If you were worried about the MPPT charger failing, a cheap PWM charger could be in your spares box.. As nice as having a Pure Sinewave AC source sounds.. Do you really need it? If you don't foresee needing 120vac, you could still buy a low cost 100W to 400w unit, just in case.. I think COTEK has them on Amazon.. Just need to have the Amp hours to feed it.. __________________ My hobby is installing & trying to repair mini-splits EPA 608 Type 1 Technician Certification ~ 5 lbs or less..