Sonnen battery module 2.5kWh 45062 LFP2 expansion battery for sonnenBatterie systems
Sonnen batterijmodule 2,5kWh 45062 LFP2 uitbreidingsbatterij voor sonnenBatterie systemen

Sonnen battery module 2.5kWh 45062

SKU: 237634

Original price was: €785.12.Current price is: €475.21.

The Sonnen Battery Module 2.5kWh 45062 is an LFP2 battery module that lets you expand an existing sonnenBatterie system or replace a failed module. Each module delivers around 2.25 kWh of usable capacity with safe LiFePO4 cells and a design for thousands of charge and discharge cycles.

Please note that this is only the separate battery module (DC), intended as an expansion or replacement in systems such as the sonnenBatterie hybrid 9.53 and sonnenBatterie eco 8.03, not as a standalone home battery.

MPN: 45062

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23 in stock

Sonnen battery module 2.5kWh 45062 – LFP2 expansion battery

The Sonnen Battery Module 2.5kWh 45062 (LFP2 ODU2) is a compact LiFePO4 battery module that allows you to easily expand an existing sonnenBatterie system. Each module adds around 2.25 kWh of usable storage to your system, ideal if you want to increase self-consumption or upgrade an older system.

Please note that this is the DC battery module only, without inverter or cabinet. The module is intended as an expansion in an existing sonnenBatterie with the appropriate enclosure and electronics.

What is the Sonnen battery module 2.5kWh 45062 for?

  • Expansion of an existing sonnenBatterie hybrid 9.53 (1-phase).
  • Expansion of an existing sonnenBatterie eco 8.03 (3-phase).
  • Retrofit in an older sonnenBatterie system to increase the storage capacity.
  • Spare / replacement module for a defective or obsolete battery in a current system.

The LFP2 modules are added in 2.5 kWh nominal increments, allowing you to precisely size the system based on your consumption and solar output.

Key features

  • Nominal capacity: 2.5 kWh per module.
  • Usable capacity: approx. 2.25 kWh (about 90% DoD).
  • Battery chemistry: lithium iron phosphate (LiFePO4) – very safe and stable.
  • Depth of discharge (DoD): up to 90% without severely affecting service life.
  • Service life: designed for approx. 10,000 charge/discharge cycles and a service life of around 20 years.
  • Voltage level: module for a DC battery ring around 48 V (LFP2 platform).
  • Housing: compact metal cassette for mounting in a sonnenBatterie cabinet.
  • Dimensions (h×w×d): approximately 9 × 44 × 41 cm.
  • Warranty in original system configuration: typically 10 years with correct installation and use.

Compatibility of article 45062

The Sonnen battery module 2.5kWh with item number 45062 is an LFP2 module designed for:

  • sonnenBatterie hybrid 9.53 (1-phase inverter + battery cabinet)
  • sonnenBatterie eco 8.03 (3-phase inverter + battery cabinet)

In these systems, several 2.5 kWh modules are combined in one cabinet to achieve total storage (e.g. 5 kWh, 7.5 kWh, 10 kWh, 12.5 kWh or 15 kWh). This module can be used to:

  • Expand an existing system (add additional capacity).
  • Replace a faulty or obsolete module.

Installation tips (for installers and advanced do-it-yourselfers)

  • 1. Check the exact system type
    Check in the documentation or on the type plate of your existing system whether it is an LFP2-based sonnenBatterie system (e.g. hybrid 9.53 or eco 8.03). Only then will this module fit properly in terms of voltage and electronics.
  • 2. De-energise everything
    Before opening the cabinet: Switch off AC and DC completely, follow safe working procedures and check that no residual voltage is present. This is work for someone experienced with DC battery systems.
  • 3. Placing modules in the cabinet
    Sonnen modules are pushed into a special battery cabinet. Make sure that the new module lies well in the conductors and that all DC and data connectors are fully inserted.
  • 4. Check capacity in software
    After adding or replacing a module, the system often needs to recalibrate or re-learn capacity. Check in the sonnen software that the total kWh level is displayed correctly.
  • 5. Mixing time and age
    When mixing old and new modules, pay attention to temperature and charging behaviour. Ideally, add modules that match the existing set in terms of age and type.
  • 6. Have a final check done
    Having the final check of a high-voltage/DC battery system done by a certified installer or service partner is highly recommended, especially in case of retrofit or repair.

Buy Sonnen battery module 2.5kWh 45062

With the Sonnen battery module 2.5kWh 45062, you give your existing sonnenBatterie a second lease of life: more storage, higher self-consumption and a longer time you can run on your own solar power in the evening and at night.

Not sure if your system runs on this LFP2 platform, or how many modules you can safely add? Send us the nameplates of your current inverter and battery box, and we will help you think about whether this module is a good technical and capacity fit for your system.

Datasheet Sonnenbatterie hybrid 9.53 Installation manual Sonnenbatterie hybrid 9.53 User manual Sonnenbatterie hybrid 9.53 Product & Safety datasheet Sonnenmodules
Dimensions 44 × 41 × 9 cm
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