14kWh Stackable LiFePO4 Battery Module

The 14kWh Stackable LiFePO4 Battery Module (BW-BAT-14S1-H / BW-BAT-0752-H) is a DC-coupled, floor-stacked energy storage unit designed to pair seamlessly with NeoVolt hybrid inverters. It is the entry point to a flexible, scalable storage system that can grow with a household‘s changing energy needs–from a single 14kWh module for daily solar self-consumption, up to a 56kWh stack (four modules) for whole-home backup and extended off-grid capability.

The module uses Lithium Iron Phosphate (LFP) cell chemistry, widely regarded as the safest and most durable lithium battery technology available for residential storage. Unlike nickel-manganese-cobalt (NMC) batteries, LFP is intrinsically stable, with a higher thermal runaway threshold and no risk of cobalt-related supply chain issues. For UK homeowners, this means peace of mind: the battery can be installed in garages, utility rooms, or even attached to external walls without the fire safety concerns associated with other lithium chemistries.

With a usable capacity of 13.79kWh (98% depth of discharge), the 14kWh Stackable LiFePO4 Battery Module stores enough energy to power a typical 3-bedroom UK home for 10–14 hours during winter, or 20–24 hours in summer when solar generation is combined. Paired with a NeoVolt 5kW or 6kW hybrid inverter, this system covers evening and night-time consumption for most households, reducing grid import by 60–80%.

Built for UK Weather: IP66 and Self-Heating

TheSinoah 14kWh Stackable LiFePO4 Battery Module an IP66 ingress protection rating–fully protected against dust and powerful water jets. This means it can be installed outdoors on external walls, in carports, or in garden buildings without concern about driving rain, snow, or coastal salt spray. The robust enclosure ensures long-term durability in the UK‘s variable climate.

Perhaps more importantly for UK installations, the module features self-heating technology that enables charging at temperatures as low as -20°C. In a UK winter, garages and external installations can easily drop below freezing–a condition that would prevent many standard lithium batteries from charging. The 14kWh module automatically activates its heating system when temperatures fall, ensuring the battery remains operational throughout the year. For homeowners in Scotland, northern England, or rural areas with exposed installations, this feature is a significant practical advantage.

Stackable, Scalable, Plug-and-Play

The 14kWh Stackable LiFePO4 Battery Module is designed for floor-stacked installation–modules simply sit on top of each other, with plug-and-play connections for power and communication (CAN bus). This modular approach offers several advantages:

Scalability–Start with one 14kWh module and add more as budget allows or energy needs grow. A 3-bedroom home might start with 14kWh, then add a second module (28kWh total) when an electric vehicle is purchased, and a third (42kWh) for whole-home backup.

Installation Speed–No complex racking or wall mounting required. Modules stack directly on the floor (with an 80mm base) and connect with pre-made cables. For a standard installation, a single module can be connected and commissioned in under an hour.

Flexibility–The system supports up to four 14kWh modules in parallel (56kWh total) or up to eight 7kWh modules, giving installers and homeowners configuration options to suit any property size and energy consumption pattern.

Future-Proofing–As the UK grid evolves and new tariffs emerge, homeowners can expand storage capacity without replacing existing equipment–a cost-effective approach that protects the initial investment.

Technical Specifications

Real-World Application: The 3-Bedroom Semi with EV

Consider a typical 3-bedroom semi-detached home in the Midlands with a 4kWp solar array and an electric vehicle. The household consumes approximately 4,500kWh annually–3,000kWh for the home and 1,500kWh for the EV. With a 4kWp solar array generating 3,500–4,000kWh per year, the family currently exports 50–60% of their solar generation to the grid at a low export rate (typically 5–8p/kWh).

Installing a 14kWh battery module paired with a 5kW hybrid inverter transforms this picture. The battery stores surplus solar generation during the day (8–12kWh in summer) for evening use, increasing self-consumption from 40% to 85%. During winter, the battery charges overnight on the cheap Octopus Go rate (7–9p/kWh) and discharges during peak periods (25–35p/kWh), cutting electricity bills by approximately £500–£700 per year.

When the household adds a second 14kWh module (28kWh total), the system can also power the EV overnight–charging the car from the battery during off-peak hours, eliminating the need for expensive daytime charging. This two-module configuration reduces the household‘s annual electricity bill by £800–£1,000, with the system paying for itself in 6–8 years.

From an Installer’s Perspective: What Makes This Battery Different

We spoke to a UK MCS-certified installer who has fitted over 30Sinoah battery systems about what makes the 14kWh module stand out.

Weight and Handling–At 128–134kg, the module is heavy but manageable with two people. The compact 690mm width and floor-stacked design means no wall-mounting complications–no need to find studs, no concerns about wall strength. Installers can position the stack directly on a concrete floor, garage slab, or even a suitably reinforced wooden floor.

Cable Management–Pre-made power and communication cables with clearly labelled connectors reduce wiring time significantly. The CAN communication interface ensures seamless integration with NeoVolt inverters–plug in, power on, and the system auto-detects the battery configuration.

Commissioning–The inverter’s LCD display and NeoVolt App guide installers through battery setup: selecting capacity, setting voltage parameters, and verifying communication. For a standard installation, commissioning adds less than 30 minutes to the overall job.

Future Service–The modular design means individual modules can be serviced or replaced without taking the entire system offline. If a fault develops in one module (rare, given the 10-year warranty), the installer can swap it out while the rest of the stack continues operating.

Safety: Six Layers of Protection

The 14kWh battery module incorporates a six-layer safety protection system that sets it apart from budget alternatives:

1. Cell-Level Protection–Each prismatic LFP cell is individually monitored for voltage and temperature, with automatic disconnection if parameters exceed safe limits.

2. Module-Level BMS–The built-in Battery Management System balances cells, prevents over-charge and over-discharge, and communicates faults to the inverter.

3. Pack Over-Voltage / Under-Voltage Protection–The BMS disconnects the battery if voltage strays outside the 200–500V operating range.

4. Temperature Monitoring–Multiple sensors across the module detect over-temperature conditions, triggering cooling or shutdown as needed.

5. Short Circuit and Over-Current Protection–The BMS responds to fault currents within milliseconds, preventing damage to cells and connected equipment.

6. Communication Redundancy–The CAN bus provides real-time data to the inverter; if communication is lost, the system defaults to safe mode.

For installers, this means fewer callbacks and warranty claims. For homeowners, it means peace of mind–the battery is designed to fail safe, not catastrophically.

Why Choose Sinoah Energy ?

1. UK Stock, Fast Delivery–Sinoah Energy maintains inventory in our UK warehouse, meaning no shipping delays or customs clearance issues. When your customer needs a battery, we deliver within days, not weeks.

2. Factory Direct Pricing–As a direct supplier from NeoVolt’s manufacturing facility, we offer competitive trade pricing without middlemen. Our factory has over 10 years of experience in lithium battery and power electronics production.

3. 10-Year Warranty–The 14kWh Stackable LiFePO4 Battery Module comes with a 10-year warranty, giving installers and homeowners long-term confidence. This is among the longest warranties in the UK residential storage market.

4. Technical Support–Our UK-based team provides pre-sales consultation, installation guidance, and after-sales support. We‘re here to help with system design, commissioning questions, and troubleshooting.

5. Genuine LFP Chemistry–Unlike some competitors using lower-cost chemistries, NeoVolt uses prismatic LFP cells with verified cycle life and safety certifications (IEC 62619, UN38.3).

6. VPP and FCAS Ready–The battery is compatible with Virtual Power Plant and Frequency Control Ancillary Service programmes, enabling future revenue streams for homeowners and installers.

7. Self-Heating for UK Winters–The integrated heating system ensures the battery charges even at -20°C–a practical feature for UK installations in garages, outbuildings, or external locations.

Trusted by Installers Across the UK

Sinoah Energy has supplied battery modules to solar installers, electrical contractors, and renewable energy specialists across the UK. From sole traders fitting 2–3 systems per month to national distributors supplying hundreds of units annually, our customers value the combination of quality, price, and UK-based support.

With over 10 years of factory experience in lithium battery and energy storage production,We have the manufacturing capacity and quality control systems to meet growing UK demand. Every battery module undergoes rigorous testing before leaving the factory–including capacity verification, insulation testing, and communication validation.

Ready to add the 14kWh stackable battery module to your product range?

Call us: 07742 753873

Email: sales@sinoahenergy.com

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