Electric power help? Need a tutorial!

I’m not an electronics technician. I need a break it down Barney style explanation for how to fix my power management issues while truck camping. I generally travel between National Forest campgrounds or dispersed camping locations without hookups. In the middle of my trips there is generally a 3-5 day canoe trip where the vehicle is left at an access point. So security is also on my mind.

22 Tacoma and I need to be able to keep the following powered or recharged daily.
Starlink Mini
Jackery 300+
CPAP
IPhone
Apple Watch
Tractive pet Tracker
Garmin Mini
2x power banks

On my recent 2.5 week trip I learned that my Jackery and cpap battery won’t recharge from the power outlet in the bed while
Driving (yes I pushed the button up front, and used a LED light strip in the back when needed)and also my Apple Watch won’t take a charge from either power bank. Weather in the Northeast was chilly/rain most of the trip. Solar panel was mostly useless. I was constantly juggling the power banks, gps phone and watch through the usb outlets in the truck to get them recharged.

Is there any sort of large plug and play battery I can buy that will allow me to run the Starlink and cpap overnight and recharge while driving?

trying to avoid buying a small generator. I really want to keep my 5 gallon GI gas can for if I run out of truck fuel, not power a generator nightly. I’ve not been able to find any generator that uses the 1lb propane canisters that also fuel the stove I use if it’s raining.

yes I know, HWOT!

 

adapt the hose for propane tank and run whatever size bottle you’d like

 

You need a dual battery setup with an AGM house battery.

You should also get a Bix CPAP battery.

 

Assistant General Manager House Battery?

My CPAP battery is what VA gave me.

 

Get a Ford Lightning.

 

Absorbed Glass Mat house battery
(AGM, a type of lead-acid battery, has the acid contained within sponges between the lead plates rather than it being a free liquid, and is said to better-withstand heavy vibration).

AGM batteries are all the rage these days (there's also lithium (LiFePO4) which has been gaining ground as well), although unless you're banging your 4x4 against rocks and/or driving at high speed (>35 MPH) off road all the time, they aren't an absolute necessity. A good quality FLA (flooded lead-acid) battery should do fine under less-stressful conditions and is about half the cost of AGM.

Your devices not charging could be because most power inverters (including the one in the truck bed) have a "modified sine-wave" output, which is really more-accurately described as a modified square-wave, and some devices have a hard time with that.
Have you tried 12VDC chargers for your devices? Or maybe do they charge via a USB (USB-C) port that you can buy an inexpensive 12V charger for?
A 12V charger will also eliminate the power efficiency loss of converting 12VDC truck power to 120VAC and then to whatever it is your device needs... Instead you'd be going straight from 12V to whatever your device needs.

Failing that, you may need to purchase a power pack/inverter unit that has a "pure sine-wave" output that agrees better with your 120V device chargers. Pure sine-wave inverters are more costly, but their output is much more like the AC that comes out of your household wall socket.

 

Starlink is plugged into cigarette adapter while driving. The 3 USB’s in the truck are for phone and whatever else is needing a charge.

when stopped for the night i will use the Jackery to power the Starlink for a bit. The fact that it and the cpap wouldn’t charge means I’m spending an hour or two hanging out at a rest area or coffee shop looking like a bum waiting on things to charge.

I really do need it explained like I’m a 3d grader. If I buy an agm battery, how does it get charged? Does the inverter get plugged in the back and the battery connected to it somehow?

 

The battery (AGM or otherwise) either can replace your truck's battery, or (more-ideally) it can be added to your vehicle as a 2nd auxiliary battery (the latter being the form of a "house battery"... The term "house battery" comes from the RV world, meaning the battery that powers accessories in the "house" or living quarters, vs the "chassis" battery that starts the engine). It charges through a battery-isolator from your trucks alternator (so whenever the engine is running).
The big benefit to an isolated dual-battery setup is you are protected against your devices fully-depleting the truck (chassis) battery to the point you wouldn't be able to start the engine and it stranding you somewhere.

Here are a couple links I grabbed from a quick internet Search that might be able to help you get started on dual setups:
https://4x4offroad.au/guides/dual-battery-system-setup-beginners-guide/
https://outdoorx4.com/stories/dual-battery-systems-explained/

 

This is my set up. Many people find this setup useful:

https://us.ecoflow.com/products/800...1&_sid=340ed1bba&_ss=r&variant=41064248868937

Read about it on Tacoma world here:

https://www.tacomaworld.com/threads/ecoflow-800w-alternator-who-has-used-it.837785/