MyReserve by SOLARWATT, the perfect solution for greater independence

SOLARWATT’s MyReserve 25 system is the ideal complement for any photovoltaic system, storing the photovoltaic energy produced during the day by your system and making it available for the evening hours.

The MyReserve 25 solution is a DC system installed between the module strings and the inverter. It is divided into two distinct devices: the MyReserve Command 20.2 and the MyReserve Pack 24.3.

MyReserve Command 20.2

This device is a high-efficiency converter connected to the DC side, to which 1 to 5 My Reserve Pack 24.3 batteries can be connected and has a discharge efficiency of 96.7%.

The maximum charge/discharge power ranges from 0.8 kW, with 1 battery, to 4 kW with 5 batteries.

It is an easy-to-install product, with certified safety and excellent value for money. MyReserve Command 20.2 also includes a Bluetooth interface for monitoring and, through a software update, the possibility of connecting a second battery system in parallel with an additional MyReserve Command 20.2.

This device can be easily integrated with the Energy Manager Pro energy management system, i.e. the interface for monitoring the production of your system. It allows you to manage your consumption, the network entry and the flexible activation of the various appliances.

MyReserve Pack 24.3

This product is the battery module that can be combined with MyReserve Command 20.2, with discharge depth of 100% and an efficiency of 99.2%.

The capacity of the single battery module is 2.4 kWh. It is guaranteed for 10 years, with a minimum of 80% of the nominal capacity. The useful life is, however, estimated for longer than 15 years.

This product includes monitoring of the individual cells and the Dynamic Charge Estimator, that is the dynamic regulation of the battery charging current based on the production of your photovoltaic system and the consumption of domestic loads.


SOLARWATT MyReserve 25


The system is made up of MyReserve Command, which contains all the battery power electronics, and MyReserve Pack, the compact module that conserves energy.

  • 2.4 kWh MyReserve Pack module
  • Possibility to connect 1 to 5 MyReserve Pack battery modules
  • Expansion possible up to 72 kWh, 6 units with 5 battery modules in parallel

Datasheet English

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Complete documentation

MyReserve 25 is a storage system connected in DC between the strings and the inverter. The storage system is modular and adapts to existing and new photovoltaic systems.

  • 10 years product warranty for MyReserve Command 25
  • Smart charging with weather forecast
  • Integrated secure Internet connection
  • Backup power capability
  • Outdoor installation (IP54) with optional anti theft kit
  • More effi cient (up to 1,000 V PV input voltage)
  • More fl exible (up to 72 kWh usable energy content)

System topology: DC-generator coupled

2 components – multiple options

MyReserve Command 25 (IP54)

MyReserve Command is a high efficiency converter for the MyReserve storage system connected on the DC side between the string and the inverter.

  • Connection of 1 to 5 MyReserve battery packs
  • Expandable up to 72 kWh
  • Peak power of up to 4.5 kW
  • Discharge efficiency of up to 96.7 %
  • Fast load response < 1 s (time to supply a load demand)
  • Self-learning algorithm for maximum self-consumption
  • Safe and easy installation
  • Bluetooth®-compatible service interface
  • Safety: certified as per “Safety guidelines for Li-ion household battery systems”
  • Low power consumption (2.5 – 7 W)
  • Outdoor installation (IP54)

MyReserve Pack 24.3 (IP54)

  • Powerful lithium-ion battery module for MyReserve battery system
  • 2.4 kWh usable energy per MyReserve Pack
  • 100 % Depth of Discharge
  • World record battery efficiency of 99.2 %
  • Long service life > 15 years
  • Single person installation (25 kg per MyReserve Pack)
  • Certified safety with multiple safety controls
  • Integrated BMS with voltage and temperature sensors
  • Individual cell monitoring
  • Dynamic adjustment of the charge current based on the PV generation + and the household‘s consumption
  • Can be expanded to a high-voltage storage system
  • Maintenance-free
  • No memory effect
  • Outdoor installation (IP54)

Custom-made performance and usable energy

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