Lösung zum Laden und Überwachen mehrerer Batterien

LiFePO₄ & Li-Ion | Scalable | Off-Grid & Grid-Powered

Our Multi-Battery Charging & Monitoring Solution is an industrial platform designed for simultaneous charging, monitoring, and control of multiple LiFePO₄ and Li-Ion batteries from a single setup (1 to 50 batteries at a time), multiple setups could be chained without limits.

The solution is built on two proven industrial modules:

  • PD.Charger (MPPT Solar / DC Smart Charger)

  • PD.Screen_PRO (Industrial Smart Touch HMI MCU Computer)

Together, they form a scalable, API-controlled multi-battery charging system capable of managing 1 to 50+ batteries, with individual monitoring, safety control, remote connectivity and the status info logging to the onboard uSD-card to the web-server.

What Problem It Solves

Traditional multi-battery charging systems suffer from:

  • limited scalability
  • no remote monitoring of the charging process
  • poor battery health visibility
  • no logging to track the batteries during the test and operation
  • complex custom firmware and UI development for such a custom systems
  • high maintenance cost and long time-to-market

Our solution eliminates these issues by delivering a deterministic, embedded, industrial-grade charging platform that works reliably 24/7 in harsh environments.

System Architecture Overview

PD.Charger – Per-Battery Smart Charging Node

Each battery is managed by a dedicated PD.Charger module, ensuring:

  • precise charge control

  • independent protection

  • accurate state-of-charge measurement

Supported battery types

  • LiFePO₄

  • Li-Ion

  • Other chemistries by request

Key charging features

  • Up to 10 A charge/load current per channel/charger

  • Battery capacity support up to 500 Ah per module

  • MPPT charging from solar panels

  • Wide DC input (up to 50 V, custom designs – up to 120V)

  • Automatic buck / boost / buck-boost operation

  • Extremely low idle current (< 1 mA)

  • Full I²C monitoring and control, all the chargers send data to PD.Screen_PRO

 

PD.Screen_PRO DatasheetLink_to_file
PD.Charger DatasheetLink_to_file
PD.Charger_GSM DatasheetLink_to_file
3D STEP files for multi-battery setupcoming soon…
Arduino code example for PD.Screen_PRO (10x)Link_to_file

PD.Screen_PRO – Central Controller & HMI

PD.Screen_PRO acts as the central brain, communication gateway and user interface of the system with the next functions:

  • collects real-time data from all PD.Charger modules (via I2C or RS-485)
  • visualizes battery health, status, and alarms
  • controls charging parameters per battery
  • provides local and remote user interaction (web-interface)
  • saves the datalogs per channel/per battery

Key advantages

  • Instant boot (milliseconds)
  • No OS, no filesystem, no SD-card failures
  • Deterministic real-time behavior
  • Industrial temperature range (-30 … +85 °C)
  • Touch-based local control (7″ / 10.1″)

 

Typical Use Cases

  • Multi-battery charging stations (1–50+ packs)
  • Battery testing & aging labs
  • Energy storage systems (ESS)
  • EV battery service & refurbishing
  • Off-grid solar battery farms
  • Telecom & backup power systems
  • Industrial battery lockers
  • R&D and production test benches

Scalable Multi-Battery Topology

  • 1 to 50+ batteries per system
  • Each battery has:
    • independent charger
    • independent protection
    • independent measurement
    • datalogging function to onboard uSD-card and to the web-server (LAN, WiFi)
  • Daisy-chained via I²C / RS-485 / CAN
  •  and web-interfaceCentralized monitoring and control via PD.Screen_PRO

This architecture ensures maximum safety, redundancy, and system uptime.

Advanced Battery Monitoring & Control

For each battery, the system provides:

  • State of Charge (SoC)
  • State of Health (SoH)
  • Voltage (per pack and per cell)
  • Charge / discharge current
  • Temperature (battery + board)
  • Charge cycle count
  • Alarm & fault detection

Smart charging policies

  • Configurable charge voltage and current
  • Temperature-dependent charging limits
  • Per-cell threshold control
  • Automatic derating and protection

All parameters are accessible via a documented PD.Charger / PD.Charger_GSM API.

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