Hand-Truck 48V System
Portable 5 kWh, builds in 25 minutes ~$1,900
Budget Whole-Home Backup
12 kW inverter, 32 kWh battery from ~$4,750
Off-Grid Home Blueprint
Whole-house off-grid, 5–12 kW ~$9,800
Code-Compliant 48V System
Grid-tie hybrid, permit & inspection ready ~$13,500
Mobile, 12V, tight on space and weight
Marine-rated, waterproof, heated cells
Small off-grid build, 12V or 48V
Off-grid or grid-tied with backup
The batteries below are certified to UL1973 standard. This is not an easy task! The biggest benefit of this listing is consistent quality over time. Non-certified batteries can change cells and hardware whenever they please, but not these batteries. Whether you buy these batteries today or in five years, they will have consistent quality standards and third party audits. If you want something you can rely on, you have come to the right place!
Affiliate links below
If you really need to depend on your battery in the middle of the ocean or far from civilization, use these. This company’s batteries have had the best hardware from day one. The first versions of this battery had some software issues, but now they have made an 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 hasn’t 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.
If you are worried about security risk of Bluetooth batteries, this is the battery for you. You can remove the Bluetooth antenna because it is located in the SOC meter! Most batteries do not have this design. If you do not want a security risk possibility, remove the SOC meter on the Epoch and you are good to go.
12V 460Ah V2-T Elite Series Heated & Bluetooth & Victron Comms LiFePO4 Battery
And that's it! The other UL1973 batteries cost 4X more and have fewer features! I am desperate to find more options to compete with the battery above. Send them my way anytime!
Visit my Channel