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Somewhat wacko battery/solar question

EnzoColorado
Explorer II
Explorer II
I have two 100 Ah Renogy AGM batteries in my TT, connected to two Renogy 100 watts solar panels on the roof via a Renogy 30A PWM controller.

I want to install an inverter so I can use coffee maker and microwave. Quick napkin calculation showed I don't have enough power in the batteries to run the coffee maker and microwave in the morning before the sun had a chance to charge the batteries.

I want to install another battery but this time a 200Ah LiFe battery. Can the Renogy 30A PWM charger charge both the AGM batteries and LiFe battery at the same time? Multiple reason for the LiFe batteries: more useable capacity than AGM, longer life cycles. The AGM batteries are 4 years old and I think when I need to replace them, it'll be LiFe batteries.

I don't think I need add more solar panels since the two AGM batteries usually gets topped off by 10 AM. We have good amount of sunlight here in Colorado.

My best guess is I can not mix AGM and LiFe batteries in the same circuit to be charged by the controller. But I hope I'm wrong.
2017 Starcraft AR-ONE MAXX 20BHLE
2012 Suburban 2500 LT 4WD
16 REPLIES 16

CA_Traveler
Explorer III
Explorer III
Best not to mix battery types. Wait until you need new batteries and then upgrade. You'll need Li compatible chargers. And then there is the truck charging to consider. Or a DC-DC Li charger. Consider switching to MPPT type solar charger.

Maybe use a propane coffee pot in the meantime and propane for cooking etc.
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob

campinghut
Explorer
Explorer
What is draining your batteries during the night. 200AH even 100AH should be enough for the coffee maker (one pot) for sure and the microwave will depend on the length of time. Maybe I am out to lunch on the amount of power needed
Tim And Bev
2018 Mobile Suites 38RSSA, 560w solar, 2800w inverter (3 previous Artic fox trailers, 1 Cedar Creek, 1 Heartland Cyclone. In the last 8 Years)
2022 F350 (Previous trucks 2006, 2008, 2012, 2015, 2017, 2019, 2020 all Ford F350's)