Pylontech Force H3 20.48kWh tower (4× FH10050, FC1000)20.48kWh 409.6V high-voltage LFP battery tower with controller and base

Overview

With four FH10050 modules under the FC1000 controller, this tower stores 20.48kWh nominal and 19.48kWh usable at 409.6V. It stands 870mm high and weighs 170kg on its base. Four modules is the maximum Pylontech lists for SMA Sunny Boy Smart Energy and several single-phase hybrids, and a mid-range size for three-phase inverters such as KOSTAL PLENTICORE G3 or Sungrow SH5.0-10RT. At 50A the tower can supply roughly 20kW at nominal voltage, well above what most residential inverters draw.

• 5.12kWh, 102.4V, 50Ah FH10050 LiFePO4 modules
• 2–7 modules per tower: 10.24–35.84kWh, 204.8–716.8V
• Up to 6 towers in parallel via P-Combiner
• 50A rated current, 55A for 15 minutes
• IP65 housing, operation from -10°C to +55°C
• CAN or Modbus RTU, built-in Wi-Fi and LAN

What's in the kit

• 1 × Pylontech FC1000
• 4 × Pylontech FH10050

How it works

A Force H3 tower stands on a 40mm base and stacks two to seven FH10050 battery modules in series under the FC1000 battery controller. Each module holds 32 LFP cells of 3.2V and 50Ah, adding 5.12kWh and 102.4V, so a tower ranges from 10.24kWh at 204.8V to 35.84kWh at 716.8V. With 95% depth of discharge, usable energy runs from 9.69kWh to 34.01kWh.

Larger systems combine up to six towers with the same module count. The P-Combiner-HV-3-V2 joins up to three towers at 50A continuous, the P-Combiner-HV-6-V2 up to six at 100A. Controllers are chained through their Link 0 and Link 1 ports; the tower whose Link 0 stays empty becomes the master and is the only one that communicates with the inverter.

Key features

Rated charge and discharge current is 50A, with 55A allowed for 15 minutes and a short-circuit rating of 4500A for 1ms. The FC1000 accepts 80–1000V and draws less than 16W. Pylontech states 96% efficiency at 0.5C, more than 8,000 cycles and a design life above 15 years at 25°C. Below 10°C and above 40°C the BMS limits charge and discharge power.

Installation and compatibility

A module weighs 39kg and a complete tower 92–287kg, so modules need several people or lifting gear, and the floor must be flat and strong enough. The base is fixed with four M8 expansion bolts, or placed 40mm from a wall and held with anti-toppling brackets. Keep 2m from heat sources and 0.3m between towers, avoid direct sun and frost, and keep the base out of rain; grounding resistance must not exceed 100mΩ.

Every inverter in Pylontech's high-voltage compatibility list has its own permitted module range, for example two to five modules with KOSTAL PLENTICORE G3, two to four with SMA Sunny Boy Smart Energy (BMS firmware 1.6 or later) and two to seven with Solis S6-EH3P(12-20)K-H. GoodWe, Sungrow, Deye, KACO and many other brands are listed too.

Monitoring and settings

The FC1000 talks to the inverter over CAN at 500kbps or Modbus RTU over RS485 at 9600bps by default; the LED button switches baud rate and protocol. Built-in Wi-Fi, or a LAN cable where the signal is weak, links the battery to Pylontech's online portal. A black-start function closes the relay for about ten minutes to wake the inverter from the battery, and the first start needs a full charge to calibrate the state of charge.

Questions and answers