Need an Enphase 10T Battery? Legacy Encharge Options Are Still Available

If you’re part of the many Enphase users with a second-generation Encharge system (Encharge 3, 3T, 10, or 10T), you’re likely enjoying reliable, integrated storage. These AC-coupled batteries pair seamlessly with IQ microinverters, deliver solid backup power, and integrate perfectly via the Enphase App.

However, as Enphase has shifted focus to the newer IQ Battery 5P (third-gen, compact 5 kWh) and IQ Battery 10C (fourth-gen, higher-capacity with enhanced features), a key limitation persists:

No Mixing Generations: The Compatibility Wall

Enphase’s official compatibility matrix confirms that Encharge 3/3T/10/10T models are not compatible with the IQ Battery 5P or 10C for mixed setups. Key reasons include:

• Different communication methods (Zigbee/WiFi for Encharge vs. hardwired controls in newer models).
• Incompatible system controllers/combiners in many configurations.
• Attempting to mix them breaks full integration, reliable backup, and app monitoring.

This means expanding capacity on an existing Encharge-based system typically requires sticking to compatible legacy units—replacing everything with newer IQ Batteries is often the only other path, but it’s expensive and disruptive.

The good news? Limited stock of these proven Encharge models remains available through select distributors like Sun Supply PV.

Best Option for Expansion: Encharge 10T (Still in Stock with Full Warranty)

The Enphase IQ Battery 10kWh Encharge 10T (ENCHARGE-10T-1P-NA) is an ideal add-on for existing Encharge systems:

• It’s essentially three integrated Encharge 3T base units in one enclosure, delivering 10.08 kWh usable capacity.
• Provides 3.84 kW continuous power output via 12 embedded IQ8X-BAT microinverters.
• Fully stacks and communicates with your current Encharge 3/3T/10/10T batteries.
• Comes with the standard 15-year limited warranty (when installed by a certified professional).
• Passive cooling, LFP chemistry for safety/longevity, grid-forming backup, and full app optimization.

These units are out of production (EOL from Enphase), but Sun Supply PV has remaining inventory—special-ordered directly from Enphase—with full manufacturer warranty intact.

Product link: Enphase IQ Battery 10kWh Encharge 10T

Smaller Capacity Needs? Encharge 3T May Also Be Available

If you need a more modular or lower-capacity addition (e.g., 3.36 kWh per unit), the Encharge 3T is the building block for the 10T and remains fully compatible with all Encharge-series systems.

While Enphase’s own store shows it as out of stock or pre-order in many cases, distributors like Sun Supply PV can often accommodate requests for Encharge 3T units. We’ve sourced these in the past and may have access to remaining stock.

Pro tip: Call our sales team directly to check current availability for Encharge 3T—they can confirm stock, compatibility with your specific setup, and get you a quote quickly. These smaller units are great for fine-tuning capacity without overcommitting.

Why Expand with Legacy Encharge Now?

• Seamless integration — No system overhaul required.
• Limited time — Once distributor stock depletes, expansion options for Encharge systems become very limited (short of full replacement).
• Proven reliability — These batteries have a strong track record for self-consumption, backup, and durability.
• Warranty security — Full Enphase coverage when purchased through authorized channels.

For new installations, the IQ Battery 5P and 10C are fantastic choices with higher density and modern features. But for owners of existing Encharge setups wanting to add storage affordably and reliably, the 10T (and potentially 3T) is the smart move.

Ready to expand your Enphase Encharge system? Contact the Sun Supply PV sales team today—we’ll verify stock, confirm fit for your configuration, and provide fast quotes. We’re an Enphase Authorized Distributor with U.S.-based support and free shipping on batteries/inverters.

Have you hit this compatibility issue, or are you planning an expansion? Let us know in the comments!

(Always double-check the latest Enphase compatibility matrix or consult a certified installer, as firmware updates can influence details.)