ADVENTURE TRAVEL ENTHUSIASTS DEDICATED TO OVERLAND EXPLORATION
Assuming 3-4 days at same site. If I should get a second battery, what are good options? I've heard lithium iron phosphate batteries are lightweight and last the longest. What are others doing? Thanks
Have you considered a Genesis Dual Battery System? If you are wanting 3-4 days out of your setup without running your engine you may need more than just a second battery. If it is over 80* and you are recharging phones or other devices or running a radio you are really going to need a solar panel to assist.
Regardless of the power source you really, really do not want to rely on the crappy factory wiring to the 12V outlet in the rear. I would strongly recommend running at least 8ga (6ga would be even better) off a dedicated circuit for the fridge from the battery.
LiPo4 batteries come with special conditions, make sure you familiarize yourself with them before dropping the significant expense. On a smaller scale I went with two Odyssey AGMs without realizing the OEM charging system in my old JKU wasn't fully up to the task of their demanding charging schedule. I ended up needing to prematurely replace them.
Thanks Amos. You've given me some things to think about. Today I'm planning on doing a test of my Jackery 500 with a 100 watt solar panel powering my fridge. Weather will be 63 degrees and cloudy today, 60 degrees and more cloudy tomorrow so should be an interesting test. Based on the test I may need to consider supplementing with another battery. Regardless I guess I'd better take your advice and upgrade the 12V wires to the back of my WJ.
Have you thought of a second battery and a solar blanket? This seems to be a popular choice when extending power options on your vehicle.
@Byron Benson Hi Bryon, Thanks for the info on the Rockpals. Any idea how long it takes to recharge via a 12-volt plug adapter? Any brand or model preference on solar panels?
@Mark Sjolin I've never really charged it off 12 volt from empty. It takes about 6-7 hours from empty on 110. It does have 12 volt pass through charging so I can still use it when charging in the truck. My truck has a built in 110 inverter, it's a little faster to top off the Rockpal during driving.
The biggest differences between the RockPals and Jackery is the display. RockPals does not have the input/output wattage display and the 12 volt regulated output. Jackery puts out 12 volts until total discharge, Rockpals does not. The main reason I went with the Rockpals was the price and the fact that it's flat, meaning I can stack stuff on top of it.
@Byron Benson It's amazing how many options there are. I like the idea of a portable solution so I guess I'll cross my fingers and go with a Jackery 500 and their 100 watt solar panel.