Enphase's batteries are designed to be installed in bundles, creating a modular storage system where capacity and power output stack with each battery installed. This modular design of smaller batteries makes it easier for homeowners to get the capacity size that's "just right" f Contact online >>
Enphase's batteries are designed to be installed in bundles, creating a modular storage system where capacity and power output stack with each battery installed. This modular design of smaller batteries makes it easier for homeowners to get the capacity size that's "just right" for their home. Just keep in mind that you can't install the new IQ Battery 5P with Enphase's other batteries.
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Solar batteries are part of a complex home energy system that depends a lot on your individual home, needs and solar panels. This makes it difficult to do hands-on testing. This review is based on specs and information provided by Enphase online and an interview with Martin-Golis to get the most accurate and up-to-date information.
Here's what you should know about Enphase batteries.
Enphase offers three different batteries: the IQ Battery 3/3T, the IQ Battery 10/10T and its newest battery, the IQ Battery 5P. The IQ Battery 3/3T and IQ Battery 10/10T models are fairly standard for their respective sizes but suffer from lower-than-average power output ratings. The IQ Battery 5P is Enphase's newest generation of battery technology, offering impressive power output ratings at a much smaller capacity size. Note that the Enphase "IQ Battery 3T" and "IQ Battery 10T" have the exact same specs as the IQ Battery 3 and IQ Battery 10. The "T" battery models are made thinner. Here's a quick breakdown of Enphase's battery specs.
Can't be installed with IQ Battery 3/3T or IQ Battery 10/10T
Larger capacity than other IQ Batteries
Enphase batteries function as an all-in-one AC-coupled system and are mainly known for their embedded microinverters. A few other components are needed to make this battery system work. Here's a quick look at the system components you can expect to have installed with an Enphase battery:
Every Enphase battery size comes with a certain number of embedded microinverters, which help your battery output power. Every system will also include an IQ system controller, which connects the battery to the grid and functions as a centralized place for wiring. With the release of its new battery (IQ Battery 5P), Enphase also released an updated version of the IQ system controller, called IQ system controller 3. It comes in two different types, one type allows you to increase your capacity expansion and the other type allows you to increase your capacity expansion and add a generator.
If you have solar panels, your battery system will include an IQ combiner component. The IQ combiner measures your energy production and consumption and provides an additional place to centralize some wiring. You'll be able to view your production and consumption data through the Enphase app. More details about Enphase's system design and components can be found on its website.
Each of Enphase's three battery options offers a different storage capacity. Here is the usable capacity of each Enphase battery:
While these batteries are a bit on the smaller side, you'll be able to install multiple Enphase batteries to stack additional capacity. You can even mix and match the IQ Battery 3/3T and IQ Battery 10/10T models. You won't be able to mix and match newer generation battery tech (IQ Battery 5P) with older generation battery tech (IQ Battery 3/3T and IQ Battery 10/10T models). It's also important to note that all Enphase batteries are compatible with and without solar, meaning you can still install Enphase batteries as a home backup without solar panels.
In terms of power output, an Enphase battery by itself is pretty weak, with the exception of the IQ 5P battery. This battery shares the same continuous power output as the other batteries in Enphases's lineup (3.84 kW) but offers an impressive peak power output rating for its size (7.68 kW). To put this into perspective, the IQ 5P's peak power output is on par with a Tesla Powerwall's peak output (7 kW), which is a much larger 13.5 kWh battery.
The IQ Battery 3/3T and IQ Battery 10/10T models both have weaker power outputs when compared with other batteries of similar size. Power output does increase with additional battery installations. The more batteries you install, the more power you can stack. If you have a larger home or a home that has a lot of large appliances, you'll likely need multiple Enphase batteries.
As far as efficiency goes, Enphase batteries are about average compared to the batteries we've evaluated. The IQ Battery 3/3T and IQ Battery 10/10T models both have a round-trip efficiency of 89%, with the IQ 5P having a slightly higher round-trip efficiency of 90%. This means that only 10% to 11% of your electricity is wasted on its way into battery storage. The average round-trip efficiency for solar batteries is about 90%.
The warranties on Enphase batteries are pretty standard for batteries. It's worth calling out the new IQ 5P's 15-year warranty. Most batteries come with a 10-year warranty, so we'll give the IQ 5P bonus points for having longer coverage. It has a lower end-of-warranty capacity guarantee. Here's a quick breakdown of the warranty details for each Enphase battery.
Cycles covered: A specific number of complete cycles your battery can perform under warranty. If your battery surpasses the specified cycle count, your warranty expires. A "cycle" is the process of fully discharging (draining) and recharging your battery. In some battery warranties, your warranty expires once you hit your specified cycle count, no matter how many years you have left on the warranty. Always make sure to check the fine print for cycle and throughput clauses.
End-of-warranty capacity guarantee: This is the manufacturer's guarantee that your battery will retain a certain percentage of its original maximum capacity by the time your warranty period ends.
If there's a problem with your battery system, the first person to contact is your installer. But if you aren't able to get in contact with your installer, Enphase provides tons of ways to reach out for support. Enphase provides the most options for customer support that we've seen from all the battery manufacturers that we've looked at so far.
There are four ways you can contact Enphase for support-related issues. If you need to talk with someone immediately, Enphase has a support phone number you can call, or you can talk with someone via live chat. If your problem isn't super urgent, you can send Enphase an email or post a question on their support forum. And if you prefer troubleshooting on your own, you'll be able to find several quick help options and documents to get you started.
Installing an Enphase battery also gives you access to the Enphase Enlighten app. Most batteries come with a standard app for monitoring energy consumption, production (if you have solar panels for your home) and predicting upcoming energy bills. Enphase is no different. There aren't any stand-out features, but it does everything you'd expect it to do, and that's perfectly fine. The app is highly rated, and any complaints it does have tend to target its reporting timeframe.
The Enphase IQ Battery 3/3T is about $2,000 to $4,000 before installation and the IQ Battery 10/10T is about $8,000 to $10,000 before installation. The IQ Battery 5P will likely cost you somewhere between $3,000 and $5,000 before installation. As a rule of thumb regarding battery pricing, you can typically expect to pay between $1,000 and $2,000 per kWh of storage, but there are exceptions. Other factors affecting battery pricing are location, the installer and how many solar panels you have.
But these prices should be taken with a grain of salt. For the most accurate pricing, you'll need to speak with an Enphase-certified installer in your area. We also recommend shopping around for a few quotes from national and local installers to see who's willing to give you the best price.
As with most batteries, it really depends on what your energy goals are and the size of your home. Enphase's battery size offerings are on the smaller side. These batteries have a much weaker power output than competing batteries of similar size, with the only exception being Enphase's newest battery, IQ Battery 5P. This new battery boasts a much higher peak power output rating and matches the continuous power output of Enphase's largest battery: the IQ Battery 10/10T. However, the IQ Battery 5P is still a small battery (5 kWh). It's also worth noting that Enphase's batteries tend to be cheaper than other batteries.
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