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I’ve thought I built my small system according to Will’s videos but now a company is telling me to change things...!?! Are they right and I’m wrong? I sent them a pic and this is their reply.

Ok, been doing this for a short while and all was good. Now the PV is out on MPPT, but solar panels are good, have 20v with 0a. Why? Did a reset with breaker, then with battery. Both restarted MPPT, it started working right but PV light went out and no Amps! Is this new MPPT bad? I did...

Below photos is my system: 200ah lifepo4 battery pack, 4 100w panels, Epever MPPT controller, with Giandel 2200w inverter. Normally I run my 1425w coffee maker in the morning with no problems for the past 2 months. Today I tried my 1500w microwave for a 2 minute runtime during noontime sun...

Has anyone dealt with this battery. Price seems good and design is nice. Made in China. what do you think?

This fake company is NOT honoring their battery warranty!!