Our 2016 Challenger came with 2 no-name (read cheap) Flooded Lead Acid batteries. We replaced them with 4 Lifeline GPL-6CT AGM.
This significantly increased our ability to run off the batteries. Before we had around 5 hours just running the residential fridge and other minor draws. Now we can go for 24 hours with a full house load (fridge, lights, TV, Computers, phone recharging, etc.), basically everything except A/C and Microwave. Currently we recharge these AGM batteries from shore power, the generator or the engine alternator. In the future we plan to put in some solar panels.
As a word of caution, before you purchase new batteries, especially lead batteries that have to be positioned right side up, check your battery storage compartment to make sure that they will fit. We totally lucked out here and our new batteries just squeezed into the available vertical space.
Link is:
http://lifelinebatteries.com/product...eries/gpl-6ct/
Battery Monitor
We also installed a Victron BMV-702 with a Blue Tooth dongle.
We love this thing. It monitors draw and recharge, has high/low voltage alarms, 30 day history of batteries and more. What’s great is that with the Blue Tooth Adaptor we can read all this data from our cell phones.
Link is:
https://www.victronenergy.com/battery-monitors/bmv-700
No regrets on either purchase.
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