My New mppt controller and upgrades

[Theiznezz]

I recently upgraded my system the past couple weeks. I had 2x150w and a 100w renogy panel. In had 3 dekka marine master batteries. I am blown away by my mppt charger controller. I had a sunforce pwm controller before this. It got the job done but Now my batteries are charged up by 11 am lol. And I have 4 100ah mighty max batteries now. I was going to add 2 50w panels on the front of the van Hi top area where the slant is But I'm not sure I need too. I run my fridge on high.fans on high. Play on my laptop all night. And the 400w charges the batteries right back up by noon time. Before I was lucky if I got a full charge by dusk. I guess ill add the 50 watters anyway for cloudy days but I am just so impressed with this charge controller. I drive a 93 Chevy g20 coachman by the way

 

[mspriusV]

Congrats on the excellent improvements in charge time via simply changing controllers.

P.S. Thanks for sharing.


Sent from my iPhone using Tapatalk

 

[John61CT]

my batteries are charged up by 11 am

Doubtful; when depleted, it takes 5 hours minimum to get to true 100% Full, and that's with max amps available.

How are you judging Full?

 

[terranaught]

I doubled my panels last year to 2400w and added 2 mppt controllers (2 systems) I haven't run my gen since.

 

[Theiznezz]

Doubtful; when depleted, it takes 5 hours minimum to get to true 100% Full, and that's with max amps available.

How are you judging Full?

I don't deplete them the whole way now. I upgraded the battery bank. Before I would go down to about 12.2v and cut my computer off at that point. So I had reserve power to run my fridge the rest of the night. I just ordered the mt-50 for renogy controllers so I dont have that data. But the light indicators for fully charged go off around noon everyday now. It always stays in the green.

 

[Theiznezz]

I doubled my panels last year to 2400w and added 2 mppt controllers (2 systems) I haven't run my gen since.

That is awesome. Can you run AC?

 

[John61CT]

I don't deplete them the whole way now.

Of course. By depleted I meant between say 30-40%, 50% should be the lowest, less frequently the better.

If you only draw down to say 80-90% then you can get back to Full in 3-4 hours, maybe.

Note this is true even with a charge source making 300A available, lead banks just can't accept much as they get closer to full.

 

[John61CT]

the light indicators for fully charged go off around noon everyday now. It always stays in the green.

Yes those are very inaccurate indicators.

The remote should help, but I would pick up a $40-80 clamp ammeter to independently verify, any charge source.

 

[Theiznezz]

After talking to you on here I'm going to stop putting it off and get one lol

 

[terranaught]

I live 1/4 mile from the ocean, don't need AC, But I think I could.

 

[Theiznezz]

Replaced the mppt controller with a pwm renogy viewstar today. Batteries are 12.5. I don't understand the soc screen either. Will say 37% but battery will be full. I think batteries are ****

 

[John61CT]

Maybe, but even $500 SCs readouts can't be trusted, need your own V and A meter(s).