Practical power for real-life needs

AFERIY P280-B 2048Wh expansion battery for the P280

A 2048Wh LiFePO4 expansion battery that takes the P280 system up to 10.24kWh with four modules for home backup, solar storage and longer trips.

The P280-B adds 2048Wh exclusively to the AFERIY P280, allowing the system to grow in stages to a 10.24kWh reserve.

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2048Whadded capacity

4 modulesmaximum

10.24kWhtotal system

4000+cycles

AFERIY P280-B 2048Wh expansion battery for the P280 - 2

AFERIY P280-B 2048Wh expansion battery for the P280 - 3

AFERIY P280-B 2048Wh expansion battery for the P280 - 4

AFERIY P280-B 2048Wh expansion battery for the P280 - 5

What that means in everyday use

AFERIY P280-B 2048Wh expansion battery for the P280

A single P280-B doubles the P280’s starting reserve. Further modules can be added over time, growing the system from 2.048kWh to 10.24kWh without replacing the main station.

✓Substantial capacity per module

The first battery takes the system to 4096Wh.

✓Build multi-day reserve

Four batteries deliver 10.24kWh with the P280.

✓Store more solar generation

Extra capacity captures more energy on productive days.

✓Centralised operation

Appliances remain connected to the P280.

Make an informed choice

Why choose this model – and what are the compromises?

The strongest reasons to buy

Each module adds the equivalent of the P280’s original capacity.
Up to four batteries make multi-day essential backup realistic with controlled loads.
LiFePO4 chemistry and 4000-plus cycles suit regular solar or backup use.

What to know before you decide

It works only with the P280 and cannot operate as an independent power station.
Several 2kWh modules require careful planning for space, weight, ventilation and cables.

What can it realistically power?

Watts determine whether an appliance can start. Watt-hours determine how long it can run. Motors, pumps and compressors may draw far more power at startup than during normal operation.

Device / use	Suitability	What matters
AFERIY P280	Suitable	The module is designed for the P280 expansion interface.
Other AFERIY power stations	Not suitable	P180, P210 and other ranges do not use the same system connection.
Directly powering a device	Not suitable	All loads remain connected to the P280.
Storing solar power overnight	Suitable	Extra capacity shifts more daytime generation into evenings and cloudy periods.
Output above 2800W	Not suitable	Capacity extends runtime but does not increase inverter output.

Real-world runtime examples

4096Wh total1 expansion battery

6144Wh total2 expansion batteries

8192Wh total3 expansion batteries

10,240Wh total4 expansion batteries

Approximate figures based on around 85% usable energy. Actual runtime depends on the appliance, efficiency and duty cycle.

Where this model fits in the AFERIY range

Model	Best suited to	Key difference
P180-B	A more compact P180 Pro system	1024Wh per module and no compatibility with P280.
P280-B	P280 backup for home, workshop or off-grid use	2048Wh per module and up to 10.24kWh total.
Second P280	Two independent power units	More redundancy and outlets, but a much larger investment.

Size your battery properly before buying

1. List your devices

Add up their wattage and estimate how many hours each one will run per day.

2. Calculate watt-hours

Watts x hours gives the energy required. Allow roughly 15% conversion loss for AC appliances.

3. Keep a safety margin

An extra 20 to 30% covers startup surges, cold weather and weaker-than-expected solar generation.

Our honest assessment

The P280-B is the right upgrade when the P280’s 2800W output is already enough and only runtime is missing. For permanent home backup, also assess placement, ventilation, electrical integration and the limits of a mobile system.

How to protect the battery over time

Use it in a dry, well-ventilated area and keep all vents clear. For longer storage, leave it at a mid-level charge, check it periodically and follow the manufacturer’s temperature guidance.

What that means in everyday use

Home backup

Extend refrigeration, broadband and essential appliance runtime.

Motorhome use

Stay off-grid longer between hook-ups.

Workshop and solar

Store more energy for tools and equipment.

A strong choice if…

you own a P280 and want a staged route from 2kWh to 4, 6, 8 or 10kWh.

Consider another model if…

you use another power station or need a universal standalone battery.

What to check before you buy

P280 compatibility only. Plan for the space, weight and connection cables required by a multi-battery system.

Technical specifications

Capacity	2048Wh
Battery	LiFePO4
Cycle life	More than 4000 cycles
Compatibility	AFERIY P280 only
Maximum number	4 expansion batteries
Maximum system capacity	10.24kWh
Display	Integrated LED status
Standalone use	Not designed as a separate power station

Questions buyers often ask

Can it power an appliance directly?

Main appliances connect to the P280.

Will it fit a P210 or P310?

No, it is specific to the P280.

How does the system reach 10.24kWh?

2048Wh in the P280 plus four 2048Wh batteries.

Does it increase the 2800W output?

No, it extends runtime only.

Is this the right fit for your power needs?

Check the linked offer for current pricing and availability.

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AFERIY P280-B 2048Wh expansion battery for the P280

Description

AFERIY P280-B 2048Wh expansion battery for the P280

AFERIY P280-B 2048Wh expansion battery for the P280

✓Substantial capacity per module

✓Build multi-day reserve

✓Store more solar generation

✓Centralised operation

Why choose this model – and what are the compromises?

The strongest reasons to buy

What to know before you decide

What can it realistically power?

Real-world runtime examples

Where this model fits in the AFERIY range

Size your battery properly before buying

1. List your devices

2. Calculate watt-hours

3. Keep a safety margin

How to protect the battery over time

What that means in everyday use

Home backup

Motorhome use

Workshop and solar

A strong choice if…

Consider another model if…

What to check before you buy

Technical specifications

Questions buyers often ask

Is this the right fit for your power needs?

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