Match the main unit
Check the exact host model and connection before choosing an extra battery.
EcoFlow DELTA Pro 3 Smart Extra Battery (4096Wh)
$1,899.00
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AUTHORIZED ECOFLOW RESELLER
EcoFlow DELTA Pro 3 Extra Battery
More reserve for your DELTA Pro 3.
$1,899.00
4096WhAdditional capacity
LFPBattery chemistry
Pro 3Matching main unit
BatteryExpansion accessory
EXTRA 5% OFF APPLIED AT CHECKOUT
Extra battery only. DELTA Pro 3 main station required for AC power.
Free shipping · Contiguous 48 U.S. statesEstimated delivery: 5–8 business days1–3 business days processing + approximately 4–5 in transit.
Genuine EcoFlow · Direct U.S. warehouse fulfillment
5-year manufacturer warranty
Coverage is subject to EcoFlow’s U.S. warranty terms.CHOOSE IT FOR YOUR PLANS.
More reserve for your DELTA Pro 3.
The EcoFlow DELTA Pro 3 Smart Extra Battery adds 4096Wh of storage to a compatible system. It is intended for buyers who already have an appropriate main station and need more energy for longer backup periods.
Add stored energy
A larger reserve can extend runtime without changing the host’s output rating.
Plan the connection
Check cables, supported battery count and firmware requirements.
KNOW YOUR CONFIGURATION.
Expand the right system.
Add stored energy to a compatible DELTA Pro 3 for longer backup needs. Check the host and planned configuration before ordering; this is not the extra battery for the original DELTA Pro.
Extra battery only. DELTA Pro 3 main station required for AC power.
KNOW YOUR CONFIGURATION.
The details, in one place.
Specifications refer to the model and configuration described. Actual performance depends on operating conditions. Optional equipment is sold separately unless expressly included.
- Additional capacity
- 4096Wh
- Battery chemistry
- Lithium iron phosphate (LFP)
- Designed for
- EcoFlow DELTA Pro 3
- Connection
- Extra battery cable included
- Product type
- Extra battery; main station not included
- Manufacturer warranty
- 5-year manufacturer warranty
Before you order
- Confirm the exact host and battery model.
- Check required cable, adapter and firmware.
- Select the intended variant and review its availability.
BUY WITH CLARITY.
Good questions. Clear answers.
Is a main power station included?
No. This listing is for the extra battery only. The compatible main station is sold separately.
Does adding capacity increase AC output?
No. More watt-hours can extend runtime, but the main unit’s rated output and port limits still apply.
Can I choose by the DELTA or RIVER name alone?
No. Confirm the exact main unit, battery model, connection cable and any firmware requirements.
Can this replace a standalone AC power station?
No. The compatible host supplies the AC outlets. Check any separate DC or USB capabilities before use.
When will my order arrive?
Allow 1–3 business days for processing and approximately 4–5 business days in transit for available items. Delivery times are estimates. Check the selected option’s availability before ordering.
Shipping & delivery ↗What warranty applies?
5-year manufacturer warranty. Coverage is subject to EcoFlow’s U.S. warranty terms.
EcoFlow warranty terms ↗What is the return policy?
Review NOVANEST’s current Returns & Refunds Policy for eligibility, timing and return-shipping details. Contact us for help with an order.
Returns & Refunds Policy ↗Full product description
EcoFlow DELTA Pro 3 Extra Battery 4096Wh: a larger energy reserve for a delta pro 3 system
The EcoFlow DELTA Pro 3 Smart Extra Battery adds 4096Wh of storage to a compatible system. It is intended for buyers who already have an appropriate main station and need more energy for longer backup periods.
Key specifications and configuration
- Additional capacity: 4096Wh.
- LFP battery chemistry.
- Designed for connection to EcoFlow DELTA Pro 3.
- Extra battery connection cable included; stackable design.
Plan the complete system
This is an expansion battery, not a standalone 4000W AC power station. The main unit provides appliance outputs, and its ratings still apply. Confirm the exact station, permitted battery count and connection accessories before buying. Do not assume it is the extra battery for the original DELTA Pro.
List your essential loads and the backup duration you want before adding capacity. If you are starting a new setup, compare current DELTA power stations. Confirm that the main unit and expansion battery are compatible.
The right power starts with your needs.
Tell us what you want to run and for how long. We’ll help you narrow it down.