Pylontech Force H3 15.4kWh high-voltage home battery (C-PYL-H3-15.4)

The Pylontech Force H3 15.4 kWh is a modular high-voltage (HV) battery storage system based on lithium iron phosphate (LFP). This version is built as a complete tower with a base and BMS/controller, combined with stackable HV battery modules. The system is designed to be connected to a compatible HV (hybrid) inverter, allowing you to store energy and use it later when your consumption is higher or when grid electricity is more expensive.

With 15.36 kWh of nominal storage, this set is a great match for homes with higher daily consumption or larger PV installations. Typical use cases include heat pumps, air conditioning, induction cooking, electric boilers and (partial) EV charging. By charging during the day and discharging in the evening/night, you increase self-consumption and reduce grid import. This makes a home battery increasingly relevant as feed-in compensation and net-metering rules evolve and self-consumption becomes more important.

Key benefits of the Force H3 15.4kWh

• LFP (LiFePO4) battery chemistry for safety, stability and long service life.
• High-voltage (HV) system designed for use with compatible HV (hybrid) inverters.
• Modular design: built from 5.12 kWh modules within the Force H3 product line.
• Tower design with central control via BMS/controller and stackable modules.
• Strong foundation to increase solar self-consumption and reduce reliance on the grid.

Why choose a high-voltage home battery

A high-voltage home battery operates at a higher DC voltage than many low-voltage solutions. In a suitable system design, this can offer benefits in efficiency, power transfer and overall system architecture. HV systems are often used with modern hybrid inverters that are built to manage PV, grid and battery charging/discharging intelligently. For best results, it is essential that the inverter is explicitly compatible with the Pylontech Force H3 series and that the system parameters are configured correctly.

What’s included (C-PYL-H3-15.4)

The C-PYL-H3-15.4 version is supplied as a complete Force H3 tower. The basic configuration includes:

• Base with BMS/controller (control module) and required internal connections.
• Three 5.12 kWh battery modules (15.36 kWh total nominal storage).

This tower-based setup is clear, service-friendly and designed to support expansion within the same product line, depending on allowed configurations and inverter support. A modular system is practical if you want a solid base today and may add capacity later, for example when expanding your solar array or when electricity consumption increases over time.

Capacity and real-world operation

The nominal storage of this set is 15.36 kWh. Usable energy depends on settings such as depth of discharge, temperature, inverter control strategy and your consumption profile. In practice, a home battery performs best when you have sufficient generation to charge during the day and a clear evening/night load to cover afterwards. This allows you to shift your own solar energy to the moments you would otherwise import electricity from the grid.

A common goal is to increase self-consumption: feed in less and use more yourself. This can be attractive when feed-in compensation is lower, when you have dynamic tariffs, or when you want to reduce grid dependence. A battery can also play a role in smart energy management, where an inverter or EMS controls charging/discharging based on PV production, household load and tariffs.

Use cases where 15.4kWh is a great fit

The Force H3 15.4 kWh is a strong option if you want meaningful energy shifting during the day rather than only small buffering. It fits well for families with higher consumption, homes with multiple large loads, or situations where you expect your electricity usage to increase in the coming years. If you are planning to install a heat pump later or already drive an EV, 15.4 kWh can be a solid middle ground between entry-level capacity and very large storage systems.

For example, if you generate a lot of solar energy and consistently export during the day but still import significant electricity in the evening, a home battery is often the next logical step. You make better use of your own generation and reduce the impact of external factors on your energy costs.

Technical specifications

System (15.4 kWh tower)

Nominal energy: 15.36 kWh.
Nominal system voltage: 307.2 VDC.
Dimensions (W x D x H): 540 x 350 x 700 mm.
Weight: approx. 131 kg.

Battery module (per module)

Energy per module: 5.12 kWh.
Nominal voltage per module: 102.4 VDC.
Module capacity: 50 Ah.
Dimensions per module (W x D x H): approx. 540 x 350 x 170 mm.

Inverter compatibility and installation

This is a high-voltage battery and must be connected to a compatible HV (hybrid) inverter. Always verify in advance that your inverter brand and model explicitly supports the Force H3 series and whether any firmware or parameter requirements apply. Correct compatibility and configuration are essential for performance, safety and warranty. Because this is an HV DC system, installation and commissioning should be carried out by qualified personnel.

Delivery, placement and practical notes

This product is typically delivered on a pallet due to its size and weight. Make sure the delivery location is accessible and that there is enough space to move and position the tower safely. Placement is ideally on a stable, level surface with sufficient clearance for ventilation and servicing. A suitable location is dry, frost-free and not exposed to direct water or extreme heat.

Warranty

Keep all installation and purchase documentation and ensure the system is installed according to the manufacturer’s instructions and configured correctly. Warranty terms and warranty period follow the applicable conditions set by the manufacturer and/or the distribution channel. Proper installation, verified compatibility and correct inverter settings are key to long-term reliable operation of your home battery system.