Zendure SolarFlow 800 Pro 2 — All-in-one
Zendure SolarFlow 800 Pro 2 ZDA2503

Photo from the manufacturer

All-in-one F2 · Room-sized (1–3 kWh)

Zendure Zendure SolarFlow 800 Pro 2

Price
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Sheet on the Zendure website →
Add to my system
Data from official source

SolarFlow 800 Pro 2 holds a 1.92 kWh lithium iron phosphate battery and four independent panel inputs in a single body, each managed as a separate MPPT tracker: two differently oriented roof slopes don't hold each other back. When the starting capacity isn't enough anymore, a dedicated satellite battery pack attaches under the control unit, up to six packs in total.

It connects to the home outlet with the included Schuko cable and returns the stored energy within the limit allowed by balcony solar regulation. It also has a separate outlet for emergency power: if grid power is missing, it switches to the battery on its own within about twenty milliseconds, so a connected computer doesn't turn off. That same outlet also accepts an external microinverter, sold separately, for anyone who wants to route the battery's energy to a different system.

The body withstands rain and splashes and mounts on a wall or on the balcony railing with the included brackets. Turning it on and the first setup need the Zendure app and a registered account. It's the choice for anyone who already has a roof or a balcony to mount their own panels on and wants the battery included from the start, with the option to add more later.

01 · Verified data

Technical specifications

Cell chemistry LFP (lithium iron phosphate)
Feed-in limit 800 VA
Round-trip efficiency Zendure does not state it.

where we looked

Standby consumption Zendure does not state it.

where we looked

Parameter Value Source
Weight 22.6 kg (49.8 lb) manufacturer website
Nominal capacity 1.92 kWh Declared by the brand
Cell chemistry LFP (lithium iron phosphate) Declared by the brand
Expandable Yes Declared by the brand
Maximum expanded capacity 11.52 kWh Declared by the brand
Battery voltage 48 V Declared by the brand
Feed-in limit 800 VA Declared by the brand
Maximum solar input 2640 W Declared by the brand
MPPT trackers 4 Declared by the brand
Grid charging Yes Declared by the brand
Maximum charge power 1 kW Declared by the brand
Backup power EPS (brief interruption) Declared by the brand
Backup output 1000 W Declared by the brand
Switchover time 20 ms Declared by the brand
Rated cycles 6000 cicli Declared by the brand
Ingress protection IP65 Declared by the brand
Mounting Wall mounted Declared by the brand
Minimum temperature -20 °C Declared by the brand
Maximum temperature 55 °C Declared by the brand
Cell heating Yes Declared by the brand
App required for setup Yes Declared by the brand
Declared standards CE Declared by the brand
Usable capacity — Not declared
Depth of discharge — Not declared
Cell supplier — Not declared
Inverter included — Not declared
Dynamic tariffs — Not declared
Capacity at end of cycle life — Not declared
Warranty — Not declared
Guaranteed throughput — Not declared
Guaranteed remaining capacity — Not declared
Round-trip efficiency — Not declared
Standby consumption — Not declared
Noise level — Not declared
Works without internet — Not declared
Local control — Not declared
Open protocols — Not declared
Home Assistant integration — Not declared
Where the data is hosted — Not declared
Remote updates — Not declared
Battery passport — Not declared
Carbon footprint — Not declared
Recycled content — Not declared

Which documents this page rests on

The rest of the data comes from one page on the manufacturer's site, cited row by row in the table above.

A manual or a datasheet counts as a source even when the original file is hosted elsewhere: what matters is the document, not the server. Where that happens, it is stated above.

02 · The numbers

What it really costs

Battery life cycles 6000 cycles stated cycles
  • the manufacturer does not state the warranty: the limit could be shorter than the stated cycles
  • the manufacturer does not state the guaranteed total energy throughput, which for heavy users is often the limit that runs out first
How we worked it out
stated cycles
6000
Energy density 85 Wh/kg
  • on nominal capacity: the manufacturer does not state the usable figure, so the true number is lower
How we worked it out
nominal capacity
1.920
weight
22.600

These numbers are calculated, not stated: they have no source to cite, they have a formula you can redo. The price used is the manufacturer's list price, which is stable and the same in every country — not a shop's price on the day.

03 · Summary

Pros and cons

In favour

  • It comes with the battery already inside: no need to buy a pack separately just to start storing energy.
  • If power is missing, it switches to the battery on its own within about twenty milliseconds: a computer plugged into the emergency outlet doesn't turn off.
  • Four independent panel inputs: two differently oriented roof slopes don't hold each other back.
  • When the temperature drops below zero, the battery's self-heating keeps charging from stopping overnight.

Worth knowing

  • The manufacturer's store sells at most one extra satellite pack: reaching the system's maximum capacity means sourcing the other packs elsewhere.
  • The emergency outlet holds up to 1,000 W continuous: a fridge together with other loads can exceed it.
  • The first startup needs the Zendure app and a registered account: it doesn't set itself up.
If not this one

Alternatives in the catalogue

Chosen by the declared use tier and footprint, not by price: we don't publish prices.