堃璐电子科技(上海)有限责任公司Kunlu Electronic Technology (Shanghai) Co., Ltd.
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AC ALL-in-One Energy Storage System(ESS)

SR5000 AC PRO

AC-coupled energy storage system with an intelligent dispatch strategy, providing safe and stable energy management for the balcony energy hub.

View specifications ↓
SR5000 AC PRO
5.12 kWhNominal capacity
2500 WRated output
IP65Protection rating
10 msGrid / off-grid switchover
Product specifications

Key data at a glance

Explore the key specifications below. Contact our team to discuss your application and configuration.

Specifications

Battery chemistry
Lithium Iron Phosphate (LiFePO4)
Battery capacity
5120 Wh
Nominal voltage
51.2 V
Rated capacity
100 Ah
Max charge / discharge current
60 A
Rated output
2500 W
Rated input power
2500 W
Operating temperature
-20°C to 60°C
Connectivity
Wi-Fi / Bluetooth / RS485
Dimensions / weight
503 × 176 × 615 mm / 55 ± 2 kg
Cycle life
6,000 cycles
Protection rating
IP65
Certification
CE / RoHS / UN38.3

Technical Overview

Quick answer: The SR5000 AC PRO is an AC-coupled battery energy storage system (BESS) with a 5.12 kWh LiFePO₄ battery, 2,500 W maximum input/output, AI-based charge scheduling, and a 10 ms UPS switchover—scalable in parallel to 30.72 kWh and certified to European grid codes EN 50549-1/10, VDE 4105, and CEI 0-21.

What Is the SR5000 AC PRO?

The SR5000 AC PRO, built by Kunlu Electronic Technology (Shanghai) Co., Ltd., is an AC-coupled energy storage unit designed as a "balcony energy center." Unlike DC-coupled systems, it connects to the existing AC circuit, so it retrofits to any home with or without solar panels and works with existing PV systems, including direct microinverter connection with zero feed-in capability. The wall-mount unit measures 503 × 176 × 615 mm and weighs 55 ± 2 kg.

Key Technical Specifications

ParameterValue
Battery chemistry / energyLiFePO₄, 100 Ah @ 51.2 V (5,120 Wh)
Operating voltage range44.8–58.4 V
Max charge / discharge current60 A / 60 A
Cycle life6,000 cycles (home-storage-grade cells)
AC grid-connected output800 W default / 2,500 W max, 230 V, 50 Hz
AC input power2,500 W, 10.87 A
Backup (off-grid) output2,500 W continuous, 10.87 A
UPS switchover time10 ms
Noise level< 30 dB
Protection / temperatureIP65 / −20 °C to +60 °C
CommunicationWi-Fi, Bluetooth, RS485

How Much Energy Can It Store?

Each unit holds 5.12 kWh. Up to six units connect in parallel for 30.72 kWh of total capacity, with combined output reaching 3,500 W on a single phase or 10,500 W across a three-phase setup—enough to back up EV charging and whole-home critical loads.

How Does AI Scheduling Save Money?

The system ships with pre-configured multi-country grid-connection protocols and supports dynamic electricity pricing. Its AI-based scheduling charges automatically when tariffs are low and discharges when prices peak; the manufacturer estimates savings of €800+ per year under typical dynamic-tariff scenarios (reference value; actual results depend on tariff and usage). The app also offers custom timed charge/discharge plans and smart-socket mode for load-following control.

What Safety Features Are Included?

The SR5000 AC PRO integrates overcurrent, overvoltage, high-temperature, and high-voltage insulation protection, fire-protection design, an anti-impact structure, and 24/7 predictive software monitoring. Battery cells and communication protocols are shared with full home-storage systems and validated through 6,000-cycle endurance tests. Certifications include CE, RoHS, REACH, WEEE, UN38.3, IEC 62619, and IEC 62477.

How Easy Is Installation?

Installation is plug-and-play in about three seconds of connection work: mount on the wall, wire to the AC circuit, and pair via app. Operation is silent (< 30 dB), making it suitable for indoor living spaces. An open API supports virtual power plant (VPP) integration for revenue from grid services.

FAQ

Can it work without solar panels? Yes—as an AC-coupled system it can charge from the grid and provide tariff arbitrage and backup alone.

Does it support existing PV? Yes, including direct microinverter connection with zero feed-in to the grid.

Is it weatherproof? Yes, IP65-rated and operable from −20 °C to +60 °C.