51.2V 200Ah Wall-Mounted Home Battery Storage | 10.24kWh LiFePO4

RAKOUR's 51.2V 200Ah-LV is engineered specifically for residential use — paired with any low-voltage inverter to store solar energy or maintain backup power during outages. It operates within a 46.4–57.6V range, delivering stable output for everyday household loads.

At just 605×383×240mm and 77kg, this unit mounts directly on your wall, freeing up floor space without sacrificing capacity. The slim profile fits garages, utility rooms, and indoor installations — unlike bulky floor-standing rack systems that demand dedicated space.

Need more capacity? Connect up to 15 units in parallel to build a system exceeding 150kWh. Each unit communicates via CAN, RS485, or RS232, ensuring balanced charging and synchronized discharge across the entire home battery storage bank.

Nominal voltage is 51.2V with 200Ah capacity, yielding 10,240Wh gross — the equivalent of a 10kWh battery with 9,216Wh usable at 90% DOD. Maximum discharge current is 120A, peak power 6,144W. Charging voltage is 57.6V; cutoff voltage 46.4V.

Dimensions: 605×383×240mm (W×D×H). Net weight: 77kg. Protection level: IP20. Operating altitude up to 2,000m. Discharge temperature: −20°C to 60°C. Charge temperature: 0°C to 60°C. Humidity tolerance: ≤85% RH. Natural cooling — no fan noise during operation.

Communication ports: CAN, RS485, and RS232. Supports up to 15 units in parallel. Cycle life ≥6,000 times. RAKOUR backs each unit with a 5-year warranty. Certifications held: IEC62619, CE, RoHS, MSDS, and UN38.3 — confirming compliance with international safety standards.

The 51.2V 200Ah-LV achieves ≥6,000 cycles at 90% DOD — over a decade of daily use before capacity drops below 80%. LiFePO4 battery life is measurably longer than NMC alternatives, which typically reach 2,000–3,000 cycles under comparable conditions.

LiFePO4 vs lithium ion: the phosphate bond resists thermal runaway even at high temperatures — a key safety advantage for indoor battery installations. RAKOUR cells operate safely up to 60°C without triggering the dangerous decomposition reactions common in NMC or NCA chemistries.

Lead-acid batteries last 500–800 cycles and need replacing every 3–5 years. RAKOUR's LiFePO4 cells outlast them more than sevenfold — one installation covers multiple lead-acid lifespans with zero maintenance, no off-gassing, and consistent capacity retention.

The battery management system in RAKOUR's 51.2V 200Ah-LV monitors cell voltage, current, and temperature continuously. It triggers automatic shutoff when it detects overcharge (above 57.9V), over-discharge (below 46.4V), overcurrent (above 120A), or dangerous temperature — protecting the battery and all connected loads.

Beyond protection, the LiFePO4 BMS actively balances cell voltage every charge cycle — preventing capacity drift and maintaining accurate SOC readings. The front-panel touch screen shows real-time state, current, voltage, and parallel unit data, giving you instant visibility without an external monitoring app.

RAKOUR's BMS supports CAN, RS485, and RS232 ports. Inverter brand protocols are switchable from the touch screen — no external converters required. This ensures out-of-the-box compatibility with major brands including Growatt, Deye, and Goodwe.

Each RAKOUR 51.2V 200Ah-LV ships with a positioning paper template, hanging steel bracket, M10×80 expansion screws, power cable (2AWG), communication cable, and network adapter for parallel connections. Standard tools — hammer drill, socket wrench, cross screwdriver — are all that's required.

Maintain 300mm clearance on all sides and 50mm above and below for ventilation. Install indoors only — away from heat sources, direct sunlight, combustible materials, and moisture. The wall carrier must be fire-resistant. Maximum altitude is 2,000m; humidity below 85% RH.

Affix the positioning paper to the wall and mark drill points. Insert M10 expansion screws and lock the hanging plate. Hang the battery onto the plate. The process is single-person capable with correct bracket positioning — no lifting equipment required.

RAKOUR's inverter battery supports CAN, RS485, and RS232 protocols in one unit. The BMS handshake controls charge voltage and discharge cutoff automatically. Protocols for Growatt, Deye, and Goodwe are switchable from the touch screen — no rewiring or converters required.

For parallel battery wiring, connect each additional unit via the RS485-2 port. Set DIP switch addresses sequentially (host = 1, slaves = 2–15). Confirm voltage difference within 1V before connecting, and stagger positive and negative terminals to the inverter for balanced current sharing.

When expanding, bring the online battery to 45–50% SOC before adding new units. The BMS synchronizes all parallel units, reaching full balance within two charge cycles. RAKOUR recommends batteries within 12 months of each other's production date to minimize cell drift.

IEC62619 is the IEC standard for secondary lithium cells in stationary applications — covering electrical, mechanical, and environmental safety testing. CE certification confirms compliance with EU health, safety, and environmental directives, required for legal residential sale in most European markets.

UN38.3 certifies the battery has passed altitude simulation, thermal, vibration, and shock tests for international lithium transport. RoHS confirms no restricted hazardous materials. The MSDS documents chemical composition and emergency handling — required by installers and local fire safety authorities.

Every RAKOUR 51.2V 200Ah-LV carries a 5-year warranty from Xiamen RAKOUR Technology Co., Ltd., covering manufacturing defects under normal operating conditions. All certification documents are available on request, ensuring full traceability from the factory to the installation site.

Paired with a low-voltage inverter, RAKOUR acts as a complete solar battery storage system — storing surplus solar generation for overnight use. At 9.2kWh usable per unit, it sustains typical household loads — lighting, refrigerator, router — for 8–12 hours after sundown.

RAKOUR also works as home battery backup without solar — charged from the grid during off-peak hours and discharged during peak tariffs or outages. This reduces electricity bills without solar panels, making it practical for renters or homes with shading constraints.

For off-grid battery setups, up to 15 units deliver 138kWh usable — enough for multi-day autonomy. For broader residential energy storage, the modular design lets homeowners start with one unit and expand capacity incrementally, without replacing any existing inverter or hardware.