Marstek or Zendure: which home battery should you choose?
Last updated: 21 October 2026 · By Team Multi-Solar, home batteries since 2022, Rotterdam
Choose Marstek for 5 kWh in one unit that you connect yourself (Venus E 3.0), or to start small with panels connected to it (Venus A). Choose Zendure to expand in steps of 2.88 kWh up to 16.8 kWh, or for up to 3,000 W of panels directly on the 2400 Pro. Via the wall socket all four deliver 800 W.
What is the difference between Marstek and Zendure in one table?
We compare the four models we get the most questions about. Manufacturer's data, reference date 21 October 2026. A dash means: not specified in the data we have.
| Marstek Venus E 3.0 | Marstek Venus A | Zendure SolarFlow 2400 AC+ | Zendure SolarFlow 2400 Pro | |
|---|---|---|---|---|
| Starting capacity | 5.12 kWh | 2.12 kWh | 2.4 kWh | 2.4 kWh |
| Expand with | extra Venus E 3.0 (complete unit) | Venus A module of 2.12 kWh | AB3000L battery of 2.88 kWh | AB3000L battery of 2.88 kWh |
| Maximum | with SmartBox: 15.36 kWh on single-phase, 46.08 kWh on three-phase | 12.72 kWh | 16.8 kWh (max. 5 batteries) | 16.8 kWh (max. 5 batteries) |
| Via wall socket | 800 W | 800 W | 800 W | 800 W |
| Higher power | 2,500 W on a dedicated circuit | 1,200 W | 2,400 W after inspection by an electrician | 2,400 W after inspection by an electrician |
| Connect panels directly | no | yes, 4 MPPT, approx. 1.4 kW | no | yes, 4 MPPT, 3,000 W |
| Backup power | output 2,500 W | EPS output 1,200 W | off-grid socket, up to 2,400 W during an outage | off-grid socket, up to 2,400 W during an outage |
| Meter | P1 meter (CT003) or CT002 | P1 meter (CT003) or CT002 | Zendure P1 meter or Shelly Pro | Zendure P1 meter or Shelly Pro |
| Connectivity | Wi-Fi and UTP | Wi-Fi and LAN | Wi-Fi and Bluetooth | Wi-Fi and Bluetooth |
| IP rating | IP65 | – | IP65 | IP65 |
| Warranty | 10 years | – | 10 years | – |
The short difference: the Venus E 3.0 has the most storage per unit, Zendure the finest steps when expanding and the 2400 Pro the most power for panels directly on the battery.
How do you expand Marstek and Zendure?
Marstek Venus E 3.0. There are no separate modules. You place a second or third complete Venus E next to it; with the Marstek SmartBox this is possible up to three per phase: 15.36 kWh on a single-phase connection, 46.08 kWh on three-phase. Each battery delivers its own power, so the power grows along. On the other hand, since June 2026 Marstek has made inspection by a qualified electrician mandatory as soon as you place multiple batteries, on one phase or spread across the phases.
Marstek Venus A. Here you stack Venus A modules of 2.12 kWh, up to 12.72 kWh. The power stays at 1,200 W.
Zendure SolarFlow 2400 AC+ and Pro. Under the 2.4 kWh base unit you place up to five batteries. According to the manual, AB1000, AB2000 and AB3000L may be combined. With five AB3000Ls you reach 16.8 kWh. The power stays at 2,400 W.
You can find all expansion modules per brand among the expansion modules.
How much power do Marstek and Zendure deliver?
In the Netherlands, a battery may deliver a maximum of 800 W to your house via a standard wall socket. That applies to all four. Above that, they differ:
- The Venus E 3.0 delivers 2,500 W if an installer puts it on a dedicated circuit, about an hour's work.
- The Venus A delivers a maximum of 1,200 W.
- The Zendure 2400 AC+ and Pro are set to 800 W from the factory. According to the manual, you first have an electrician check your wiring. After that, you request 2,400 W in the Zendure app.
Charging is done at a maximum of 2,500 W with the Venus E 3.0 and at a maximum of 2,400 W with the Zendure 2400 series. This mainly matters with a dynamic contract, if you want to make use of the cheap hours.
Can you connect solar panels directly to Marstek or Zendure?
With two of the four, yes.
- The Zendure SolarFlow 2400 Pro has four MPPT inputs of 750 W each, 3,000 W combined. Per input Zendure recommends panels of 400 to 900 W, and the voltage must stay below 55 V. Together with the AC side, the solar input comes to 4,800 W.
- The Marstek Venus A has four MPPT inputs totalling about 1.4 kW. That is enough for a few panels.
The Venus E 3.0 and the 2400 AC+ have no solar input. They are AC-coupled: your existing panels and inverter stay in place, and the battery is plugged into the wall socket alongside them. With the 2400 AC+ you can, however, connect a separate inverter to the off-grid socket, according to the manual.
Which meter do Marstek and Zendure use?
Both are controlled based on what your smart meter measures.
With Marstek, when ordering you choose the CT003 P1 meter on the P1 port, or the CT002 if you do not have a DSMR 5 meter. If you already have one, you can do without. According to Marstek, a HomeWizard meter or Shelly Pro 3EM only works with one battery.
With Zendure, you choose the version with the Zendure P1 meter on your smart meter, or with a Shelly Pro kWh meter in the electrical panel. Zendure also has its own Smart CT as an option. The difference between P1 and a CT clamp is explained in P1 meter or CT clamp.
How do the apps and Home Assistant differ?
In the Marstek app you see live what the battery is charging and delivering and what your house is consuming. You choose self-consumption, the AI mode for dynamic tariffs, or your own schedules. With Home Assistant, the Venus E 3.0 works locally via the Open API or Modbus over the LAN cable. Those integrations come from the community.
In the Zendure app you choose self-consumption, schedules or charging on a dynamic tariff, and you pair the meter. Zendure has its own Home Assistant integration for the 2400 AC+ and 2400 Pro, and with zenSDK you control them locally. The details are in connecting a home battery to Home Assistant.
Which one has backup power?
All four have a separate output for backup power. Only the appliances you connect to it run on it, not the whole house.
- Venus E 3.0: 2,500 W.
- Venus A: 1,200 W.
- Zendure 2400 AC+ and Pro: an off-grid socket. If the grid fails, the battery delivers up to 2,400 W there. You first switch that output on in the app. According to the manual, the socket is not waterproof during use.
You can read more about the possibilities and limits in backup power with a home battery.
Marstek or Zendure: what suits your situation?
You have solar panels and want to use your own electricity in the evening, without an installer. Go for the Venus E 3.0. You get 5.12 kWh in one go, it is connected in about 15 minutes and it is our most popular battery.
You want to start small and expand step by step. Go for the Zendure 2400 AC+. You start at 2.4 kWh and add 2.88 kWh at a time, up to 16.8 kWh.
You have panels without their own inverter, for example on a shed or flat roof. If you have a few panels, the Venus A fits. If you have more, up to 3,000 W, the Zendure 2400 Pro is the choice.
You rent, or you do not want anything permanently connected. Both brands work on the wall socket. If you move house, you simply take the battery with you.
You want to go to 15 kWh or more later, with more power. Choose the Venus E 3.0: each extra unit brings its own power. This does require an electrician and a dedicated circuit (installation via quote).
You use Home Assistant. Choose Zendure if you want an integration from the manufacturer itself. Choose Marstek if local control via Modbus or the Open API is enough for you.
Still in doubt? Request a no-obligation quote, and we will look at your consumption, your panels and your electrical panel with you. Or view all models from Marstek and Zendure, or other brands in the plug-in battery comparison.
Frequently asked questions
Is Marstek or Zendure better?
Neither is better on every point. The Venus E 3.0 has more storage per unit and delivers slightly more power on a dedicated circuit. Zendure expands in smaller steps and the 2400 Pro takes more panels directly. Choose based on your situation.
Can I combine Marstek and Zendure?
No, not in one system. Each brand uses its own battery management and its own communication. Always expand within the same brand and the same series.
What is the difference between the Zendure 2400 AC+ and the 2400 Pro?
The Pro has four MPPT inputs for a total of 3,000 W of panels. The AC+ has no solar input and sits alongside your existing inverter. Storage, power and expansion are the same: 2.4 to 16.8 kWh and 2,400 W.
Do I need to register a Marstek or Zendure?
In the Netherlands, yes. Register the battery with your grid operator via energieleveren.nl, and update the registration after expanding. Read the 800 watt rule and registration.
What is the difference between the Venus E 3.0 and the 4.0?
On a dedicated circuit the 4.0 delivers 3,000 W instead of 2,500 W, is rated for more charge cycles and has more advanced smart control. Everything is in Venus E 3.0 vs 4.0.
Sources
- Marstek, brochure Venus E 3.0 EU/EN (2026); Marstek Netherlands, installation manual new P1 meter (June 2026)
- Zendure, user manual SolarFlow 2400 AC+ (specifications, §7 expansion, §9 off-grid socket)
- Zendure, user manual SolarFlow 2400 Pro (11 March 2026)
- Zendure, Zendure HA integration and zenSDK on GitHub (consulted for our article on Home Assistant, 5 October 2026)
- Product data Marstek Venus E 3.0, Venus A, Zendure SolarFlow 2400 AC+ and 2400 Pro on multi-solar.nl (21 October 2026)