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Batteries
BrandEcoflow
EcoFlow DELTA 2 [Smart Expansion Battery] | Expand Storage Capacity
$ 369USD · price may vary
BrandEcoflow- Model
- ZMR330EB
- Specifications
- 0
Overview
Expandable Capacity: DELTA 2 expands up to 2048Wh with smart extra battery, keeping your home powered on in any emergency.
Convenient Recharging: DELTA 2 and its Extra Battery charge and discharge in unison. Recharging from portable solar panels, AC outlets, or our Smart Generator is easy.
Fast Recharging: Charge up with DELTA 2 from 0-80% in XX minutes and 0-100% in XX minutes with AC input.
Internal Storage Compartment: Get extra storage for accessories conveniently, saving space at home or on the go.
Power multiple devices: DELTA 2 fits with every port you’ll ever need to power any devices anywhere, so you will always feel right.
Control from anywhere: Get all the same info about battery percent, remaining recharge time, hours left, and more on the built-in screen. You can check the battery’s status anywhere from the EcoFlow app.
Specifications
Net Weight: 9.5kg / 21lbs
Dimension: 15.7 x 8.3 x 11.1in / 40 x 21.1 x 28.1cm
Capacity: 1024Wh
Warranty: 5 Years
What's In the Box?
DELTA 2 Smart Extra Battery
DELTA 2 Extra Battery Cable
User manual
Warranty card
Still Have Questions? Give us a call today 1-877-242-2792
Reading the specifications
Detailed specifications for EcoFlow DELTA 2 [Smart Expansion Battery] | Expand Storage Capacity 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 system voltage: 12 V, 24 V and 48 V for low-voltage packs, or a high-voltage stack, continuous charge and discharge current, which limits how much power you can draw from the pack, cycle life at a stated depth of discharge, commonly 3,000–6,000 cycles for LiFePO4 and round-trip efficiency, around 90–95% for lithium and 75–85% for lead-acid. 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.
What to check before ordering
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.
- Read the warranty in full: lithium warranties are stated as a term plus either a cycle count or a total energy throughput, and whichever limit arrives first ends the cover.
- 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.
Common mistakes
- Sizing the bank for total daily consumption rather than after-dark consumption, which typically doubles the cost for no benefit.
- 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.
Price and availability
EcoFlow DELTA 2 [Smart Expansion Battery] | Expand Storage Capacity is listed at $ 369 (USD). 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 your country: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Ecoflow locally before ordering.
EcoFlow DELTA 2 [Smart Expansion Battery] | Expand Storage Capacity — frequently asked questions
How much does EcoFlow DELTA 2 [Smart Expansion Battery] | Expand Storage Capacity cost?
EcoFlow DELTA 2 [Smart Expansion Battery] | Expand Storage Capacity is listed at $ 369 (USD). 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 2 [Smart Expansion Battery] | Expand Storage Capacity?
EcoFlow DELTA 2 [Smart Expansion Battery] | Expand Storage Capacity is a Ecoflow product, listed under batteries with model reference ZMR330EB. The Ecoflow brand page lists the rest of its range so you can compare across the catalogue.
Is EcoFlow DELTA 2 [Smart Expansion Battery] | Expand Storage Capacity right for my system?
That depends on what it has to connect to. For a battery, check cycle life at a stated depth of discharge, commonly 3,000–6,000 cycles for LiFePO4, round-trip efficiency, around 90–95% for lithium and 75–85% for lead-acid and communication protocol (CAN or RS485) for talking to the inverter against the rest of your equipment before price enters the decision. Leave room to expand. Packs that parallel cleanly let you add capacity later; ones that do not force a full replacement.
Where can I buy EcoFlow DELTA 2 [Smart Expansion Battery] | Expand Storage Capacity?
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 — buying in-channel is what keeps the manufacturer's warranty valid.
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