Reddit reviews Renogy Deep Cycle AGM Battery 12 Volt 100Ah for RV, Solar Marine and Off-grid Applications, Gray, Model Number: RNG-BATT-AGM12-100

You need to give more info:
Is this a dual battery system charged by your alternator while moving?
Will you use solar to recharge?
What type of trailer and how much “stuff” will be running?
Will you move the trailer every day or use it as a home base?
How much room do you have? (For 1 battery, 2 batteries, etc)
These are just a few questions to start.

Based on a guess (external, camper mount, and road trip), you can use a vented, marine, deep cycle like this: Duralast 29DP. And that will support some LED light strands, and a small fridge for a night or two, possibly more.

Based on my own application (usually daily charge from an over-sized alternator and run a National Luna fridge, and multiple lights), look for a sealed, lead acid, deep cycle battery. For $200 I can order a sealed lead acid from Amazon and that will run everything I need for a few days, then charging off my truck for a days drive.
[Renogy 12 volt Deep cycle AGM] (https://www.amazon.com/dp/B075RFXHYK/ref=cm_sw_r_cp_tai_jwC3DbH19QZ6B)

Lithium batteries can’t be charged when the temp is below freezing. Besides, they cost a fortune (but last a long time tolerating heavy abuse)

Your question is very broad and there are a million varying applications.

Check out Expedition Portal. Start here if you want to read about a dual battery system .

Renogy 200 Watt 12 Volt Monocrystalline Solar Starter Kit w/ 40A Rover MPPT Charge... https://www.amazon.com/dp/B06VY9DVY9/ref=cm_sw_r_sms_c_api_i_R4YRDbW552GF4

Krieger 1500 Watt 12V Power Inverter, Dual 110V AC Outlets, Installation Kit Inclu... https://www.amazon.com/dp/B07MS5BY6T/ref=cm_sw_r_sms_c_api_i_u-YRDbS0KJZC6

Renogy Deep Cycle AGM Battery 12 Volt 100Ah for RV, Solar Marine and Off-grid Appl... https://www.amazon.com/dp/B075RFXHYK/ref=cm_sw_r_sms_c_api_i_ybZRDb8WFGN0K

No problem, I wish you luck with your project!

Depth of discharge is definitely important for battery longevity. The more 'shallow' your discharge cycles are with any sort of Lead Acid chemistry, the longer the battery will usually live. :)

Also, if you're going to go over ~300-400 Ah of battery storage (rated) consider making the change to a 24 volt system before you start ordering components. The reason for this is to ensure you don't end up using cables the size of your arms to carry the current you need. When you double the nominal battery bank voltage, you half the current being carried by your conductors in that circuit, thus reducing the needed wire size. It doesn't sound like you'll need to go with a 24 volt system though, as you won't really need that much storage, or that much solar.

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Remember:

Voltage x Amps = Power in Watts

Power in Watts x Hours = Energy in Watt-hours

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>What do you think of the Optima BlueTop? They are more money than most AGMs, but they claim superior number of recharges. I can get the 66Ah at Costco for $299CAD. But I'd probably need at least 3 of these.

Try something like this instead:

https://www.trojanbattery.com/solar-agm-2/

Avoid 'marine/starter' batteries like they tend to sell at Costco and auto parts stores. (Optima BlueTop included.) They're designed to be a hybrid of a 'starter battery' (for a motor) and a 'deep cycle' battery for running electrical equipment. They will not live as long as something that is designed purely for deep cycling like the Trojan Solar AGM's, or even these Renogy ones: https://www.amazon.com/Renogy-Battery-Marine-Off-grid-Applications/dp/B075RFXHYK/

EDIT:

Renogy also makes a gel-cel equivalent of that one, here:

https://www.amazon.com/Renogy-100Ah-Rechargeable-Cycle-Battery/dp/B01KN6QUW2/

EDIT 2:

By the way, there are some differences between Gel-cel lead acid and AGM lead acid batteries, but they are both non-spillable (Sealed) battery types, that come in 'true deep cycle' varieties. :)

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Easy way to tell if it's a 'hybrid' battery type (designed for use where it will start an engine at times), is to check if it has those 'automotive style' post terminals. The ones that you find on your car battery. 'Marine' batteries that have both automotive and screw termainls, like those BlueTops, are not quite ideal for use in a solar application.

It is unlikely that you will be able to power a heater with solar power; heaters simply require too much electricity. A sleeping bag rated for the temperature you will experience is probably the most effective thing for you.

A quick look at Amazon shows the Nintendo switch has a wall outlet power adapter that outputs 5v at 1.5a. Assuming that is correct, you can charge your electrical devices from a wall outlet at McDonalds or Starbucks, or from a cigarette lighter adapter in your car. If you won't be in cities or won't be driving daily, a small solar panel and battery (I like that battery for its dual inputs, which makes it charge twice as fast) will likely be sufficient. Price for solar panel and battery about $100.

If you need more electrical power, put a roof rack on your car, then buy a battery and a 100-watt kit from Renogy (the kit includes mounting hardware, cables, a solar controller and instructions to wire everything together). Price for solar panel kit and battery about $400.

Thank you so much for the information, I'll have to measure it out when i get home.I had intended to start with 1 and work my way up to 4 if it worked well.

So Batteries, probably the most technical portion of this part. So looking at [this] (https://www.amazon.com/Renogy-Battery-Marine-Off-grid-Applications/dp/B075RFXHYK) There is a lot of words in here that are challenging me. Whats the best way to assess what would actually be needed for the job? Can you chain multiple if you exceed capacity on 1 battery?I should take an electrical class...