All-in-One ESS Max

Compact and flexible 4kW balcony system with 4 MPPT and 2.2kW AC-Coupling support. Ideal for users who want to increase energy self-consumption and store it without costly installation modernization.

Thumbnail of the All-in-One ESS Max product
All-in-One ESS Max

Plug & Play 4kW balcony energy storage with 4 MPPT and expandability up to 15.36kWh

from 3 999 gross
All-in-One ESS Max
from 3 999 gross

All-in-One ESS Max is a modern 4kW balcony energy storage system, designed for simplicity of installation and maximum efficiency. Thanks to Plug & Play technology, starting the system takes only a few minutes, without the need to interfere with the existing electrical installation. All-in-One ESS Max works with any PV system and smart meters, such as CT002, ensuring full control over energy consumption in real-time.

The use of four independent MPPTs, 2.2kW bidirectional AC-Coupling operation, and the possibility of expansion up to 15.36kWh makes the system perfect for both home and recreational conditions — e.g., in summer houses or on yachts. The IP65 waterproof design and quiet operation below 30dB guarantee reliability and comfort of use in all conditions.

All-in-One ESS Max - Base without accumulator/battery
3 999 gross
All-in-One ESS Max - Modular battery
3 999 gross
Maximum solar energy utilization, minimum losses

4 independent MPPT trackers intelligently monitor multiple PV strings – maximizing energy yield from every roof, at any angle, and at any time of day with efficiency reaching 99.8%.

Maximum energy flow thanks to the 2.2kW bidirectional inverter

The 2.2 kW bidirectional AC flow allows charging the energy storage when electricity prices are low and powering the house when they rise.

Scalable energy storage – always enough power

The modular design allows expansion from 2.56 kWh up to 15.36 kWh, customized to your needs.

Autonomous Power System – Your Own Off-Grid Power Plant

A complete, self-sufficient system that allows you to power your home without the need for a permanent grid connection. Energy from the solar panels charges mobile, lightweight battery modules, which can be easily moved and connected immediately thanks to the "plug-and-play" cable set. The system operates autonomously, and if necessary, it can cooperate with the grid – simply add a CT002 smart meter to start energy trading, without additional installation work or purchasing equipment.

800W / 4kW

manage panel power

High energy consumption devices

Washing machine
Dishwasher
Heat pump
Electric oven
Induction hob
Electric kettle
Air conditioner
Electric heaters / fan heaters

Medium energy consumption devices

Refrigerator
Television
Desktop computer
Laptop
Game console
Wi-Fi router
Monitor

Low energy consumption devices

Chargers
LED lighting
Bluetooth speakers
Smart-home hubs, sensors

Technical specification

Energy storage unit (module)

Parameter Value
Storage module type EBM
Number of storage modules max. 6 pcs.
Total system capacity 2.56~15.36 kWh

DC Input: PV

Parameter Value
Maximum input power 4000W
MPPT voltage range 25~55V
Maximum input current (single channel) 32A
Number of MPPT trackers 4
MPPT efficiency 99.80%

AC Output: off-grid operation

Parameter Value
Nominal output power 2200VA
Peak power 2500VA (60 s)
Nominal voltage 230V
THDu (linear load) <3%

AC Output: on-grid operation

Parameter Value
Nominal output power 800VA / 2200VA
Operating phase L/N/PE
Nominal grid voltage 230V
Grid frequency 50Hz
Nominal output current 3.48A / 9.57A
Power factor >0.99 (default), adjustable 0.8 lagging – 0.8 leading
THDi <3%

Efficiency

Parameter Value
Maximum efficiency (battery–AC side) >94.5%

Basic parameters

Parameter Value
Ambient temperature range -20°C to +60°C (storage -30°C to +85°C)
Relative humidity 0–95%
IP protection class IP65
Cooling method Natural cooling
Maximum operating altitude 2000 m

Other

Parameter Value
Grid connection BC01
PV installation connection MC4
Off-grid port European socket
Display LED
Communication Bluetooth, Wi-Fi, RS-485 (RJ45), Ethernet

Battery parameters

Parameter Value
Battery energy capacity 2.56 kWh
Cycle life >6000 (25°C)
Battery type LiFePO₄
Battery capacity 50 Ah

Basic battery parameters

Parameter Value
Ambient temperature range -20°C to +60°C (storage -30°C to +85°C)
Relative humidity ≤95%
IP protection class IP65
Cooling method Natural cooling
Maximum operating altitude 2000 m