Battery
Management

Battery Management System (BMS) Software & Hardware Design

Reliable Power Management for the Electrified World

The performance, safety, and lifespan of battery-powered systems rely heavily on their Battery Management System (BMS). Whether you’re building electric vehicles, energy storage solutions, or battery-powered robotics, a custom BMS ensures efficiency, real-time monitoring, and protection at every level.

At Promwad, we design custom BMS hardware and embedded software for Li-ion, LiFePO₄, and other chemistries — optimised for your application’s performance, cost, and safety requirements.

Our BMS Development Services

We provide complete development and integration of hardware, firmware, and communication protocols for modern BMS platforms.

BMS Hardware Design

Battery pack topology (1S–24S and beyond)
Voltage, current, and temperature sensing circuits
Protection circuits (overvoltage, overcurrent, short-circuit, thermal)
Precharge, relay control, and isolation components

Embedded BMS Software Development

SOC/SOH estimation algorithms
Active/passive cell balancing control
Temperature compensation and fault detection
EEPROM logging and self-diagnostics

Communication Stack Integration

CAN and CAN FD protocols with ISO 11898
UDS diagnostics, ISO 26262 compliance paths
UART, RS-485, Bluetooth, and cloud gateways

Test & Validation Infrastructure

HIL testbench for cell simulation and diagnostics
Functional Safety testing and FMEA support
IEC 62133, UN38.3, ISO 26262 documentation preparation

Application Areas for Custom BMS Solutions

We tailor each BMS platform for specific cell types, regulatory requirements, and usage environments.

Electric Vehicles (EV/LEV)

Drive battery packs, thermal control, range reports

Robotics & Drones

Modular battery modules, power safety

Energy Storage (ESS)

Rack-level BMS, grid stabilisation

Agricultural & Industrial

Electric tractors, forklifts, AGVs

Consumer & Medical Devices

Wearable battery packs, backup power systems

Development Workflow

We guide your product through all stages — from concept to compliance.

Requirement Definition

Define energy storage needs, voltage/current range, and communication targets

Hardware Architecture

Choose sensing ICs, balancing methods, and protection strategy

Firmware & Algorithm Development

SOC/SOH estimation, balancing, diagnostics

Testing & Simulation

Hardware-in-the-loop (HIL), fault injection, aging scenarios

Certification Support & Production

Test reports, pilot manufacturing, field validation

Why Promwad?

We build safe, efficient, and smart BMS platforms that scale with your product roadmap.

Real-world battery expertise

from mobility to utility-scale energy

Cross-domain integration

BMS + CAN + UI + cloud diagnostics

Functional safety alignment

ISO 26262, IEC 61508, UN38.3

Scalable
development

from wearables to high-voltage EV platforms

Power Smarter, Operate Safer

Battery systems are the beating heart of electrified innovation — and BMS is their brain.

Promwad develops advanced battery management systems that deliver safety, insight, and efficiency — for EVs, energy systems, and embedded power solutions.

Let’s design your next-generation BMS platform!

Drop us a line about your project! We will contact you today or the next business day. All submitted information will be kept confidential.