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AC-Coupled Battery System

AC-Coupled 路 Model Ronda AC-Coupled

Residential 路 AC-Coupled

AC-Coupled Battery System

Retrofit storage for any PV brand

An AC-coupled battery system that works with an existing PV brand — add storage without replacing the grid-tied inverter already on the roof.

5kWAC power
10kWhStorage capacity
AnyPVBrand-agnostic retrofit
ACsideCoupling architecture

AC-coupled — keep the existing PV inverter
Works alongside a wide range of grid-tied PV platforms
Backup-ready with automatic transfer
Smart EMS integration for PV, battery and loads

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Download Datasheet

Key Features

Retrofit Storage for Existing PV

An AC-coupled battery system that works with an existing PV brand — add storage without replacing the grid-tied inverter already on the roof.

AC-Coupled Architecture
Connect on the AC side so existing PV inverters stay in place.
Brand-Agnostic Retrofit
Works alongside a wide range of grid-tied PV platforms.
Backup-Ready
Keep critical loads powered during outages with automatic transfer.

Wide Operating Temperature
Designed for residential plant rooms and sheltered outdoor sites.
IP-Rated Enclosure
Protection suited to garage and utility-room installs.
Smart EMS Integration
Coordinate PV, battery and loads through a unified energy manager.

Product Data

Technical Specifications

ModelRonda AC-Coupled

Electrical Characteristics

System Type: AC-coupled residential battery
Battery Type: LiFePO₄ (LFP)
AC Power [kW]: 5
Storage Capacity [kWh]: 10
Coupling: AC side (existing PV inverter stays)
PV Compatibility: Brand-agnostic retrofit

Protection & Certifications

BMS Protection: Multi-layer electrical and thermal
Enclosure: IP-rated for garage / utility room
EMS: Unified energy manager

Installation

Form Factor: AC-coupled retrofit package
Application: Homes with existing PV
Backup: Critical loads with automatic transfer

Warranty

Standard Warranty: 10 years²

¹ Power and current may be affected by temperature, cell voltage, SOC and system protection settings. ² Refer to Ronda Warranty Terms and Conditions.

PDF · 1.3 MB
AC-Coupled System Datasheet

Model Ronda AC-Coupled, version 1.0 — features and full technical specifications.
Download
PDF · 10.9 MB
Quick Start Guide

Unpacking, installation, wiring and first start-up of the battery system.
Download
On request
Inverter Compatibility List

The latest list of supported inverter brands and models, with communication settings.
Request the List

10-Year Standard Warranty

AC-Coupled is covered by a 10-year standard warranty under the Ronda Warranty Terms and Conditions. Warranty handling is coordinated with our distributors and installer partners.

Installation & Commissioning

Floor-standing installation indoors or outdoors (IP65). Our technical team supports installers with wiring diagrams, inverter communication settings and parallel configuration of up to 8 units.

Documentation for Your Market

Certification reports (IEC 62619, EN IEC 61000-6-1 / 6-3), UN 38.3 test summary, SDS and shipping documentation are supplied for compliance and international delivery.

Installation

Add Storage Without Reworking PV

Ask for a Wiring Diagram

Parallel expansion
Homes with existing solar

Keep the current PV inverter and add AC-coupled storage for self-consumption and backup.
IP65 · Indoor & outdoor
Fast retrofit projects

Fewer DC changes mean shorter install windows for homeowners already on solar.

Get in Touch

Tell Us About
Your Project.

Tell us about your application, market and project requirements. Our team will work with you on product selection, system configuration, technical documentation and commercial support.

Or e-mail us directly at sales@rondaenergy.com

AC-Coupled Battery System

AC-Coupled Battery System

Retrofit Storage for Existing PV

AC-Coupled Architecture

Brand-Agnostic Retrofit

Backup-Ready

Wide Operating Temperature

IP-Rated Enclosure

Smart EMS Integration