I install six different battery brands: Tesla, EG4, Anker, Ecoflow, Lion Energy, and Ruxiu. Most solar companies push one brand because they get the best dealer margin on it. I offer all six because different homeowners have different budgets, different backup needs, and different priorities.
This is not a spec-sheet comparison you can find anywhere online. This is based on what I see in the field -- what installs cleanly, what holds up, what homeowners actually like living with, and what gives the best value for the money.
Why Home Batteries Matter More in 2026
Two things have changed that make batteries significantly more valuable than they were a few years ago:
- Utah's net billing rates are unfavorable. Rocky Mountain Power credits exported solar at roughly $0.05-0.06/kWh, but charges you $0.11-0.13/kWh. Storing your excess solar and using it yourself saves roughly double what exporting it does.
- The federal solar ITC expired. Without the 30% tax credit, solar system costs need every advantage to maintain good ROI. Batteries help by maximizing self-consumption.
Add in the Wattsmart battery incentive -- $2,000 per qualifying battery from Rocky Mountain Power -- and batteries have a legitimate place in most solar installations.
Tesla Powerwall 3
Installed price through BYOP: $10,000-$12,000 (before Wattsmart incentive)
- Usable capacity: 13.5 kWh
- Continuous power: 11.5 kW (enough for whole-home backup including AC and large loads)
- Warranty: 10 years, unlimited cycles
- Best for: Homeowners who want the premium experience, best app, whole-home backup, and highest resale value
Pros: The Tesla app is genuinely the best in the industry for monitoring and control. The Powerwall 3 has integrated inverter capability, very high continuous power output, and Tesla's brand carries real weight on home resale. It is also one of the most reliable units I install -- very few callbacks.
Cons: It is the most expensive option by a significant margin. Tesla's ordering and delivery process can be unpredictable. And you are paying a premium for the brand name -- the raw kWh-per-dollar is not the best value.
My take: If budget is not the primary constraint and you want the best overall experience, the Powerwall is hard to beat. But if you are cost-conscious, you can get comparable performance for significantly less.
EG4
Installed price through BYOP: $4,000-$6,000 (before Wattsmart incentive)
- Usable capacity: 10-15 kWh depending on model (LifePower4, WallMount, etc.)
- Continuous power: 5-12 kW depending on model and configuration
- Warranty: 10 years
- Best for: Budget-conscious homeowners who want real battery storage without paying Tesla prices
Pros: The value proposition is outstanding. You get solid lithium iron phosphate (LFP) chemistry at roughly half the price of a Powerwall. EG4 has a growing community of installers and DIYers, which means good documentation and support. Multiple form factors -- wall-mount, rack-mount, and standalone -- give flexibility for different installation scenarios.
Cons: The app and monitoring are functional but not as polished as Tesla's. Brand recognition is lower, which may matter for resale. Some models require more installation knowledge to configure properly.
My take: EG4 is my most-recommended brand for homeowners who want genuine battery backup without overspending. The LFP chemistry is inherently safer and more durable than other lithium chemistries, and the price-to-capacity ratio is the best in the market.
Anker SOLIX
Installed price through BYOP: $5,000-$8,000 (before Wattsmart incentive)
- Usable capacity: 5-15 kWh (modular, stackable)
- Continuous power: 6-12 kW depending on configuration
- Warranty: 10 years
- Best for: Homeowners who want a quality mid-range option with good aesthetics and app experience
Pros: Anker brings consumer electronics polish to the battery space. The app is clean and well-designed. Modular design means you can start small and add capacity later. Build quality is consistently good.
Cons: Newer to the home battery market, so the long-term track record is still being established. Pricing sits in a middle ground where you might want to go down to EG4 for value or up to Tesla for the premium experience.
My take: Solid middle-ground option. If you want something nicer than EG4 but do not want to pay Tesla prices, Anker SOLIX is a strong choice. The modularity is a genuine advantage if you are not sure how much capacity you will need.
Ecoflow Delta Pro / Whole Home
Installed price through BYOP: $4,000-$8,000 (before Wattsmart incentive)
- Usable capacity: 3.6-15 kWh depending on configuration
- Continuous power: 3.6-7.2 kW
- Warranty: 5-10 years depending on model
- Best for: Homeowners who want flexibility -- portable power plus home integration, or whole-home backup with the newer models
Pros: Ecoflow started in portable power and brought that versatility to home installations. The Delta Pro can function as a portable unit and a home battery. The newer Whole Home Battery system is purpose-built for residential use. Good app, good build quality.
Cons: The Delta Pro's power output is lower than dedicated home batteries. The portable-to-home-battery approach means some compromises in either direction. The warranty on some models is shorter than competitors.
My take: If you want both portable power (camping, tailgating, emergency kit) and home battery backup, the Delta Pro is unique. For dedicated home battery use, I would lean toward EG4 for value or Tesla for premium.
Lion Energy
Installed price through BYOP: $5,000-$9,000 (before Wattsmart incentive)
- Usable capacity: 10-13 kWh
- Continuous power: 5-6 kW
- Warranty: 10 years
- Best for: Homeowners who want a Utah-based company and solid LFP battery technology
Pros: Lion Energy is based right here in Utah, which means local support and a company invested in the local market. LFP chemistry for safety and longevity. Clean design and straightforward installation.
Cons: Power output is on the lower end for whole-home backup. Pricing is higher than EG4 for comparable capacity. Smaller installer network nationally, though that matters less if you are working with a local installer like BYOP.
My take: Supporting a Utah company has real value, and Lion Energy makes a reliable product. If local support matters to you and you want LFP chemistry, Lion is worth considering. For pure value, EG4 edges it out.
Ruxiu
Installed price through BYOP: $3,500-$5,500 (before Wattsmart incentive)
- Usable capacity: 10-15 kWh
- Continuous power: 5-10 kW depending on model
- Warranty: 10 years
- Best for: Budget-first homeowners who want maximum kWh per dollar
Pros: Aggressive pricing makes it the most affordable option on a cost-per-kWh basis. LFP chemistry. Functional and reliable from what I have seen in installations.
Cons: Smallest brand presence in the US market. App and monitoring are basic. Documentation can be limited. Not the brand you want if resale value perception matters to you.
My take: If your goal is to get battery storage installed at the lowest possible cost and you are comfortable with a less-known brand, Ruxiu delivers. I would not hesitate to install one, but I also want to be transparent that the brand recognition and support ecosystem is smaller than the others.
The Wattsmart Battery Incentive
Rocky Mountain Power's Wattsmart program pays $2,000 per qualifying battery. In exchange, RMP can draw from your battery during peak grid demand events -- typically hot summer afternoons when everyone is running AC.
This incentive applies to most of the brands I install and meaningfully reduces the effective cost. An EG4 at $5,000 minus $2,000 Wattsmart comes in at $3,000 net. That is an outstanding deal for 10+ kWh of battery storage.
Pairing With Solar: APS DS3 Microinverters
For homeowners adding batteries to a new solar installation, I recommend APS DS3 microinverters. They are US-made, cost-effective, and provide panel-level optimization. Unlike some inverter brands that lock you into specific battery ecosystems, APS microinverters work with any AC-coupled battery -- giving you freedom to choose the battery brand that fits your budget.
My Overall Recommendation
Here is how I think about it when advising homeowners:
- Best overall value: EG4 -- best kWh-per-dollar in a proven, reliable package
- Best premium option: Tesla Powerwall -- best app, highest power output, strongest brand for resale
- Best mid-range: Anker SOLIX -- polished experience at a reasonable price
- Best for portability + home: Ecoflow Delta Pro
- Best local (Utah) option: Lion Energy
- Best ultra-budget: Ruxiu -- maximum storage per dollar
But honestly, the "best" battery is the one that fits your budget and covers your needs. A $4,000 EG4 battery with the $2,000 Wattsmart incentive is not a compromise -- it is a smart financial decision. And a Powerwall is not a waste of money if you value the premium experience and have the budget for it.
The wrong decision is paying $15,000 for a battery at a big solar company when you could get the same unit installed for $8,000-$12,000 through an independent installer like BYOP.
Need Help Choosing?
I will walk you through the options based on your home, your usage patterns, your budget, and your backup priorities. No commission on any brand -- I recommend what makes sense for you, not what earns me the biggest margin.
If you need a panel upgrade to support a battery, I handle that too. And if you are wondering whether the math works without the federal tax credit, read my honest analysis on solar without the ITC.