200ah battery under back seat of 2023 Crew Max, not hybrid version

Has anyone placed a 200ah (or preferrably 300ah) battery under the rear seats? I could probably just measure the dimensions, but if it's close I still may not get it right. Wanting to add some solar panels on Prinsu roof rack for fishing trips to Ocracoke so I have basically unlimited power on the beach. The 100/400 watt inverter is still the same joke that it was in my 2019 Tacoma. I'm looking to add some real, usable power! I also own a costruction business, so it would be great to be able to have constant power on jobs that have no electrical. If anyone has a setup even similar, I'd love to see pics and exactly what equipment that you used. Thanks in advance!!

 

Be careful

 

I think it is a great idea especially if you stick a rooftop tent on the Tundra. I went with Rich Solar stick-on flexible CIGS panels as they are super light and can be stuck to the top of the tent (hardcover). I also have a GoPower flexible panel to make up the 360W.

I have a 250ah lithium battery (for indoor use) in my trailer with 360W solar. I have a bunch of other devices to manage the power like a 1,500W inverter and automatic shore switch, etc... But I would think that an inverter, a decent charge controller and battery along with the panels would give you power.

Where to put this stuff would be the other concern. The if you go with AGM or Lead batteries, you should put those outside of the cab due to off gassing. Lithium will give you the lightest options at about half the weight of the other batteries but price will be much higher.

 

depending on how much solar you have an how much power you use, you might not need that large of a battery.

That said, 200-300 ah of AGM batteries will be pretty big. I would think you could get the same usable power(lead acid batteries are really only supposed to be discharged 50%) from a 100-150 Ah LFP battery and it would be 1/3 the size and weight. I picked up a few Renogy 170 ah LFP batteries for my trailer and each on is roughly the same volume as a Group 24 battery but has 2.5x the usable capacity.

The other great thing about the LFP's is that the voltage stay very steady. Until you almost completely drain the battery, the voltage will stay at or above 12.8V.

 

I went with a single 12V 100AH LifeP04 Battery (Phosphate) from LiTime (this will last much longer the a ION and other benefits. 2000AMP Giandell Inverter, Victron MPPT Controller and a single 200W Panel. Does more then i'd need honestly. No pics yet, But almost done.

I did research for a long time to get those brands/items. Will Prowse is a great source for this as well on his website. https://www.mobile-solarpower.com/

I also have a Bluetti EB3A (600W/1200W peak) i take with me as well and it works amazing. I use that mainly for my ICECO Cooler/Freezer with a 100W foldable solar panel.

 

he's got some good videos on reviews of different batteries and other solar stuff, i watched a bunch when i was putting together my lithium setup for our trailer.

 

When picking your batteries out be sure to check the maximum amp discharge rate. For example, a 150ah Renogy lithium battery has a maximum discharge of 100a essentially making it no better than a 100ah battery.

with enough solar and a dc-dc charge controller.. battery capacity shouldn’t be an issue. Your issue will be with amp discharge rate and ensuring your inverter is large enough to handle your power tools. Too many people have huge inverters and battery arrays that arent even close to handling that capacity. All that being said, I’d just go cordless with your power tools and use your solar/battery setup to charge your cordless tools. Anyways, just my $.02

 

I dont think thats how it works. Just cause it can only discharge safely at 100 amps doesnt mean it cannot do it for more than 1 hour.

Plus, if you’re discharging that high of current you should probably have two batteries in series. I have a 3000 watt inverter which in theory could draw 250 amps at 12.8v and I wish I had done a 24 or 36V setup to cut that in 1/2 or 1/3

 

This is from their 170ah battery which has been discontinued (probably why). It’s a 170ah battery but can only discharge at 125a before the bms will cut you off. Yeah, you can still “use” that other 45 amps but it’s more storage that anything. They fixed it with their 200ah battery being a full 200a discharge.



And, unfortunately, a lot of these LifePO4 batteries (many of renogy’s included) don’t allow for a series arrangement. So, yes, that’s something else to consider when looking. Many many factors but when you’re trying to push a 15a power tool, you gotta have your ducks in order

 

Thank you for all the replies! I am absolutely going with a LiFePo4 battery. The cost is just worth it. As of Monday, I will have a Prinsu roof rack to mount panels on, so they will definitely be a part if the equation. All of my tools regarding work are cordless, with the exception of a DeWalt 12 inch miter, which is indeed 15 amps. I also run several battery chargers at the same time, with 2 of them being 6 amp. I'll be sure to take note of the specs. Thanks again!!

 

Its a typo. It says “max continuous discharge current”. Ah is not the unit for current.

here is the actual data sheet:

 

I've had really good luck with SOK, might be worth checking out. I've run their 24v 100ah (2560wh) battery in my camper and couldn't be happier with it. 12v would probably be a better setup for the truck, but its the same guts & BMS quality.

https://www.us.sokbattery.com/product-page/marine-grade-12v-206ah-lifepo4-battery-sealed-plastic-box

 

How does this setup look to everyone? Just in case it doesn't show up, I do have a 2000w inverter paired with the charge controller.

https://cuttingedgepower.com/products/premium-overlanding?currency=USD&variant=39632017555647

https://www.renogy.com/12v-200ah-lithium-iron-phosphate-battery-w-bluetooth/

3 of these 100w panels:

https://www.renogy.com/100-watt-12-...IPWrKEHeLjkvZz-Ggzj3cUgz5J8reXoEaAmk3EALw_wcB

Forgot to mention also...... I am installing a 12000 lb winch in a week or so. I would absolutely love to power that winch with this setup also. Please feel free to dumb things down and talk to me as if I am an idiot. I have more money than I do knowledge of these setups, so I could potentially get into trouble with all this. I have a decent understanding, but zero real world experience.

 

Check out Bluetti systems. Lots of cool packages to choose from.

 

You may want to consider a self heated battery depending on where you live. If the battery is sitting in the truck and the truck is cold then the battery may drop below 32F, which is the limit for charging.

Also, make sure you are running large enough cables for that 2000 W inverter. I think you could be pushing 180 amps on the battery side of the inverter if you max it out, which requires a substantial cable. I got 2/0 cable for my 3000 watt inverter and its still probably a tad small if I was to run 3000W continuously for a while, but the run from my batteries to my inverter is only like 2' or something. My inverter came with cable but I am pretty sure it was like 2 ga or something ridiculous. Not even close to what is needed for the amps the inverter would draw.

 

Good point! My battery won't accept a charge below +5C (41F) so even if it is above freezing, I still need a bit more warmth to get my system going. My charge controller has a lower limit set for +4C (39F) so I can have a sunny day and still get nothing from my solar!

I have a GoPower 250ah Lithium LP04 battery which has a built in BMS.

Best to check the specs on the system you are looking at to make sure it fits with your plans and working environment.

 

Those LiPo4 batteries are amazing, I use them for a solar powered fountain and my trolling motor.

Mine come from Dakita Lithium Batteries. Good prices and an 11-year warranty. Battery Collection - Dakota Lithium Batteries

 

I've been able to find the 170 ah Renogy batteries for ~$600 shipped but I am thinking the supply of those has probably dried up at this point.

 

Everything there looks good but that battery won’t fly with a 12k winch. Max discharge is 200a. A 12k winch can pull 350 or more depending on the load and how much line is unspooled (how many wraps on the winch). I have Renogy batteries but if I were to do it again I’d look at SOK like others have mentioned. Better bms, heating, and are serviceable. Check out will prowse on YouTube. Guys has a ton of good info.

 

Again, thank you for all the input! Tons of useful information in there! I've pretty much ruled out running the 12k lb winch off the backup system due to the fact that it would take at least LiFePo4 batteries under the seat to cover the amperage needed. Also, the gauge of wire would have to be insane to work sufficiently over that long of a span with that much power. The winch will probably only be used a few times a year at most anyway. I'm not about to take a brand new truck rock crawling. Lol

I live in the Piedmont area of North Carolina, so cold weather isn't a big threat, but the self heating battery is still a great idea. We don't go below freezing regularly, but it would be my luck to need that battery during one of the rather rare cold snaps we get from time to time.

Again, thank you all! I'm gonna go look into every lead ya'll gave me!

 

Theres this from reddit, a little sloppy but a good idea.

I would post the pictures but the PC at work blocks reddit .

Hers the link
https://www.reddit.com/r/ToyotaTundra/comments/yonoj2/2022_dual_battery_setup/

 

That is EXACTLY what I am looking for! I'd go for a bigger battery, but the system itself is what I'm looking for. Thank you!