12V Lithium Solar Batteries

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Tired of getting scammed by cheap LiFePO4 batteries? Not getting the capacity that was advertised or the features that were promised? Worried about safety? Check out my updated recommendations below!

Most LiFePO4 battery brands will have multiple manufacturers, so these recommendations below are for these models in particular. Their other models usually have issues and should be avoided. ​Especially the "smart" versions!

If you ever have a problem with a battery on this page, please post about it on www.diysolarforum.com
and I will find a solution! Links below are affiliated, so I get a commission if you purchase them.

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Best Build Quality
​Budget Friendly 12V Battery

For a full teardown and comparison to other batteries, watch this video:

Why I love it:

• Large capacity (100AH packs cost a lot to wire in parallel)
• Not a "smart" battery (no cycling issues or security problems)
• Best Build Quality. I tested every single on in this price range. This one is hands down the best.
• 200A BMS, so 2.5kW output! Not bad for 12V

This model tested better than all the other wattcycles. If I were to get one 12V battery today, it would be this. 

​If you want a reliable battery with fantastic build quality, this is the way to go.

Click Here to Purchase

Or Click Here to Purchase on Amazon

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No Compromise, Highest Quality:
Epoch V2-T

If you really need to depend on your battery in the middle of the ocean or far from civilization, use these. This companies batteries have had the best hardware from day one. The first versions of this battery had some software issues, but now they have made a unkillable battery. I have cycle tested it, max load tested it and tested all safety features and it works great. One of my friends is running it in his truck as a starter battery (not recommended by the company) and he hasnt killed it yet. This brand also makes golf cart batteries that I have been running in my golf cart daily for five years without a single hiccup. 
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Basic Features:

• 460Ah Capacity
• 400A EATON Class T Fuse (User Serviceable)
• 230A @ 25°C Max CONTINUOUS Discharge (500A 30s Discharge)
• 210A @ 25°C Max CONTINUOUS Charge
• IP67 Rated, Dust and WATERPROOF
• HEATED - Internal heating for below 0C charging
• BLUETOOTH - iOS and Android Apps
• VICTRON Communications with distributed charge control via DVCC
• Parallel up to 16 batteries on 1 system
• External Power Button & Battery Gauge INCLUDED
• Built-in Smart Battery Management System (BMS)
• Over charge and over discharge protection
• Over current and short circuit protection
• High & low temperature disconnects
• UL60691 Certified Internal Fuse
• UL1642, U9540A, IEC 62619:2022 Certified Cells
• UL1973 Certified Pack
• 4000+ Cycle life & Maintenance-free
• 11 Year Manufacturer Warranty

Click Here to Purchase
The Epoch V2-T

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Ecoworthy: The Only "Smart" Battery
​Without Issues

Now this battery is not that pretty, but it is the best performing 12V "smart" battery around. In my testing, it had the longest bluetooth range, zero cycling issues (like all the other "smart" batteries available) and high quality cells. The build quality is on par with a wattcycle, but does not have any of the software issues. Ecoworthy constantly updates their batteries with feedback from the forum. 

Some crazy stats about this battery:

• New from the factory, these have the best cell voltage balance of all batteries I have tested. 
• If I do a capacity test at .2C (56A) or with 200A, I get 290Ah and 290.2Ah, respectively. Incredible!
• I can run 200A till it dies. 
• I can connect to the bluetooth twice as far as any other battery on my list. I can be in a different building and still connect. It is bonkers.
• Metal cell holders. This is usually only found in more expensive models. Build quality is on par with batteries that cost $100-$200 more. 

The older version of this battery was extremely reliable. These new updates make it the best battery on my list now!

Click Here to Purchase The Ecoworthy 12V 280Ah

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Cheapest 12V around:
​Dumfume 300Ah

Really stupid name but it is good! So are their 100Ah models. 

• Cheapest battery with functional over current protection
• Fantastic capacity results
• Decent build quality, especially for the price
• A lot of people are running them without issue! 

Update: Some people are getting different cells now. Some come with 305Ah, others 314Ah. You just do not know what you will get with this company. I really like this battery though for the price. I would say it is the best budget battery around, but results will vary when it comes to capacity. 

Click Here to Purchase This 300Ah Battery

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My Favorite 100/200Ah Budget 12V Battery

This is the only budget 12V battery with over current protection and low temp charging protection. The build quality is fantastic, the cells are great and my capacity tests were amazing. Litime used to have the best "budget" models around, but now it is wattcycle. 

12V 100Ah Click Here to Purchase 
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12V 200Ah Click Here to Purchase​

​Update: Avoid all "Smart" Wattcycle batteries! They have a major issue that you can learn about here: Click Here

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Now expensive: Litime

These batteries used to be the "budget" models. Not any longer. Same build quality and cells as the packs above but for more money. Good batteries! Just expensive now. 

12V Models
12V 200Ah Click Here to Purchase 
12V 300Ah Click Here to Purchase 
12V 460Ah Click Here to Purchase

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Highest quality 12V battery... at a price!

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EG4 LL 

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This battery has features that the other batteries on this page do not have, but it costs a lot:

• Built in communication system! CAN BUS or RS485
• Built in DC rated circuit breaker on LL model
• State of Charge Indicator w/ Internal Shunt
• Fire arrestor
• Precharge resistor circuit (no need to use your own resistor)
• Rated to 7000 cycles w/ DOD of 80%!​
  

$1,299 for 12V 400Ah
Click Here to Purchase