Solar Panels
Batteries
BrandEcoflow
EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option
$ 2,199USD · price may vary
BrandEcoflow- Model
- EFDeltaProUltra-BP-US
- Specifications
- 0
Overview
The DELTA Pro Ultra is EcoFlow’s most advanced home backup solution yet — engineered for high-demand use cases like whole-home power, serious off-grid setups, and extended outages. This 6.1kWh battery is fully expandable and stackable, making it ideal for those who want plug-and-play flexibility with pro-level performance.
✅ Key Features:
Massive 6,114Wh capacity to power essentials for days
Modular & expandable — stack multiple batteries for full home coverage
Compatible with solar, gas, and grid charging
Silent, fume-free operation — perfect for indoor or discreet use
Fast setup with smart app control & real-time monitoring
High surge output supports large appliances & tools
Choose your bundle: Add solar panels, accessories, or backup hubs
🧰 Great For:
Emergency backup during blackouts or SHTF events
Off-grid cabins, RVs, or rural properties
EV charging and whole-home load shifting
Customers who want power independence without rewiring their home
📦 Technical Specs:
Battery Capacity: 6,114Wh (6.1kWh)
Battery Chemistry: LFP (LiFePO₄) – 10,000+ cycle lifespan
Voltage: 102.4V
Max Output (with Inverter): Up to 7,200W continuous (in system config)
Max Solar Input: 5,600W (when paired with inverter)
Expansion Capability: Stackable with up to 5 additional batteries
Charging Options: Solar, AC (wall), EcoFlow Smart Generator
Dimensions: 26.3 x 14 x 9.5 in
Weight: ~110 lbs
Connectivity: WiFi, Bluetooth, EcoFlow App Control
Operating Temp: -4°F to 113°F (-20°C to 45°C)
What's Included With Your DELTA Pro Ultra Battery Pack Order?
EcoFlow DELTA Pro Ultra Battery
EcoFlow Battery Connection Cable
5-Year Warranty
Lifetime Customer Support
Free Shipping!
Still have questions? Give us a call at 877-242-2792
What these specifications mean
Detailed specifications for EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option have not been published yet. Ecoflow lists this battery in the Batteries, and we add fields as the manufacturer releases them — in the meantime, ask your distributor for the datasheet before ordering.
For a battery, the figures that matter most are communication protocol (CAN or RS485) for talking to the inverter, nominal capacity in ampere-hours (Ah) or kilowatt-hours (kWh), usable capacity after depth of discharge — LiFePO4 typically allows 80–100%, lead-acid closer to 50% and system voltage: 12 V, 24 V and 48 V for low-voltage packs, or a high-voltage stack. Storage is what turns a solar array from a daytime bill-reducer into a system that covers evening loads and rides through outages. It is normally the single most expensive component, so sizing it correctly matters more than with any other part.
Choosing a battery: the checks that matter
The checks below apply to any battery. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.
- Leave room to expand. Packs that parallel cleanly let you add capacity later; ones that do not force a full replacement.
- Compare usable kilowatt-hours, not nameplate capacity. A 100 Ah lead-acid battery at 12 V is nominally 1.2 kWh but only about 0.6 kWh is safely usable, while a 100 Ah LiFePO4 pack gives you roughly 1.0–1.2 kWh.
- Size from your evening consumption. Add up what actually runs after sunset for the hours you want covered, then divide by the usable capacity per unit — that number, not the array size, sets how many batteries you need.
- Check the continuous discharge rating against your inverter. A battery that stores plenty of energy but can only deliver 50 A cannot support a large inverter at full output.
Where buyers lose money
- Installing lithium packs in an unventilated, hot enclosure. Sustained high temperature is the fastest way to lose cycle life.
- Ignoring the charge current limit and pairing a large array with a small bank, which trips protection and shortens life.
- Mixing old and new batteries, or different chemistries, in one bank. The weakest unit drags the whole bank down and can be damaged by the others.
Price and availability in United States
EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option is listed at $ 2,199 (USD) for United States. Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.
SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in United States: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Ecoflow locally before ordering.
EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option — frequently asked questions
How much does EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option cost?
EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option is listed at $ 2,199 (USD) for United States. The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.
Who makes EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option?
EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option is a Ecoflow product, listed under batteries with model reference EFDeltaProUltra-BP-US. The Ecoflow brand page lists the rest of its range so you can compare across the catalogue.
Is EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option right for my system?
That depends on what it has to connect to. For a battery, check nominal capacity in ampere-hours (Ah) or kilowatt-hours (kWh), usable capacity after depth of discharge — LiFePO4 typically allows 80–100%, lead-acid closer to 50% and system voltage: 12 V, 24 V and 48 V for low-voltage packs, or a high-voltage stack against the rest of your equipment before price enters the decision. Check the continuous discharge rating against your inverter. A battery that stores plenty of energy but can only deliver 50 A cannot support a large inverter at full output.
Where can I buy EcoFlow DELTA PRO ULTRA - 6,114Wh / 6.1kWh Battery Pack - Choose Bundle Option in United States?
SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer in United States — buying in-channel is what keeps the manufacturer's warranty valid.
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