
ECOFLOW DELTA 2 MAX EB
SKU: 306612
- Battery Capacity: 2048Wh (2.048kWh)
- Battery Chemistry: LFP (Lithium Iron Phosphate)
- Battery Voltage: 51.2V
- Battery Capacity Rating: 40Ah
- Battery Cycle Life: 3000 cycles to over 80% capacity under specified conditions
- Maximum Input: 51.2V, 2000W
- Maximum Output: 51.2V, 3200W
- Compatible Power Stations: EcoFlow DELTA 2, DELTA Max 2000 and DELTA 2 Max
- Expandable Capacity: Add up to two compatible extra batteries to the DELTA 2 Max system for a total of 6144Wh
- Connectivity: Smart battery monitoring through a compatible EcoFlow power station and app
- Dimensions: 464 × 235 × 283mm
EcoFlow DELTA 2 Max EB Smart Extra Battery- Expand Your Backup Power
The EcoFlow DELTA 2 Max EB Smart Extra Battery is designed for users who need additional energy storage for their compatible EcoFlow portable power station. With a capacity of 2048Wh (2.048kWh), it adds extra stored energy to a supported system, helping extend the time compatible appliances and devices can operate during power interruptions or off-grid use.
Whether you need longer backup for essential home electronics, networking equipment, lighting or selected appliances, the DELTA 2 Max EB offers a practical way to expand system capacity without purchasing another complete power station.
2048Wh Additional Energy Storage
With 2.048kWh of additional battery capacity, the DELTA 2 Max EB increases the amount of energy available to a compatible EcoFlow system. The extra storage can help extend runtime for appliances and devices, although actual operating time depends on power consumption, inverter efficiency, system configuration and available usable energy.
Long-Life LFP Battery Chemistry
The extra battery uses lithium iron phosphate (LFP or LiFePO4) battery chemistry. EcoFlow specifies a battery cycle life of 3000 cycles while retaining more than 80% of its original capacity under the stated test conditions. Actual battery longevity varies with charging habits, temperature, storage and usage.
Expandable Storage for Compatible EcoFlow Power Stations
The DELTA 2 Max EB is designed to connect to compatible EcoFlow power stations using the appropriate extra-battery cable. A DELTA 2 Max system can support up to two compatible extra batteries, increasing its total rated energy capacity from 2048Wh to as much as 6144Wh when configured with two 2048Wh expansion batteries.
EcoFlow also lists compatibility with the DELTA 2 and DELTA Max 2000. Always confirm compatibility and the supported configuration for the exact power station before purchasing.
Designed for Home Backup and Off-Grid Use
The extra battery is suitable for expanding energy storage for home backup, outdoor activities and other applications supported by the connected power station. It does not independently provide AC sockets or operate appliances on its own; the compatible power station manages power conversion and supplies the required outputs.
Smart Battery Monitoring
When connected to a compatible EcoFlow system, the extra battery can be monitored as part of the system's energy-storage setup. This helps users manage available capacity and plan for longer backup periods.
Compact Expansion for a Higher-Capacity System
Measuring approximately 464 × 235 × 283mm and weighing around 19kg, the DELTA 2 Max EB is designed to sit alongside a compatible power station. Its dedicated connection system allows the battery to be integrated into the supported EcoFlow setup.
Technical Specifications
| Specification | Details |
| Brand | EcoFlow |
| Product name | DELTA 2 Max Smart Extra Battery |
| Product designation | DELTA 2 Max EB |
| Model number | EFD350-EB |
| Battery capacity | 2048Wh / 2.048kWh |
| Nominal battery voltage | 51.2V |
| Battery capacity rating | 40Ah |
| Battery chemistry | LFP / LiFePO4 |
| Cycle life | 3000 cycles to over 80% capacity |
| Maximum input | 51.2V, 2000W |
| Maximum output | 51.2V, 3200W |
| Compatible power stations | DELTA 2, DELTA Max 2000, DELTA 2 Max |
| Maximum expansion with DELTA 2 Max | Two compatible extra batteries |
| Maximum combined capacity with DELTA 2 Max | 6144Wh / 6.144kWh |
| Dimensions | 464 × 235 × 283mm |
| Weight | Approximately 19kg |
| Battery charging temperature | 0°C to 45°C |
| Battery discharging temperature | -10°C to 45°C |
| In the box | Extra battery, extra-battery cable, user manual and warranty card |
Frequently Asked Questions
1. What is the EcoFlow DELTA 2 Max EB?
The EcoFlow DELTA 2 Max EB is a Smart Extra Battery that adds 2048Wh of energy storage to compatible EcoFlow portable power stations.
2. Can the DELTA 2 Max EB be used as a standalone power station?
No. It is an expansion battery and cannot independently function as a conventional portable power station. It must be connected to a compatible EcoFlow unit for normal operation.
3. Which EcoFlow power stations are compatible with the DELTA 2 Max EB?
EcoFlow lists compatibility with the DELTA 2, DELTA Max 2000 and DELTA 2 Max. Confirm the supported configuration for your specific power station before purchasing.
4. How much extra capacity does the battery provide?
It adds 2048Wh (2.048kWh) of rated battery capacity.
5. Can I connect two DELTA 2 Max extra batteries?
Yes. A compatible DELTA 2 Max system supports up to two compatible extra batteries, increasing the combined rated capacity to 6144Wh (6.144kWh).
6. What type of battery does the DELTA 2 Max EB use?
It uses lithium iron phosphate (LFP or LiFePO4) battery chemistry, with a specified cycle life of 3000 cycles to over 80% capacity under stated conditions.
7. Does the extra battery increase the power station's AC output?
Its primary purpose is to increase stored energy and extend runtime. Do not assume that adding the battery increases the connected power station's rated AC output; that depends on the power station itself.
8. What is included in the box?
EcoFlow lists the DELTA 2 Max Smart Extra Battery, an extra-battery cable, a user manual and a warranty card. Confirm the supplied package contents with the seller.
9. How much does the EcoFlow DELTA 2 Max EB weigh?
It weighs approximately 19kg and measures 464 × 235 × 283mm.
10. Where can I buy the EcoFlow DELTA 2 Max EB in Nigeria?
Check SLOT Systems Nigeria for current product pricing, availability and package details. Confirm compatibility with your existing EcoFlow power station before ordering.