Services

Established in 1995, PEC Technology (Thailand) Co., Ltd. is a premier provider of comprehensive power system and energy storage solutions. With over 28 years of experience in power electronics and the battery business, led by Mr. Kasiean Sukemoke, we deliver specialized engineering design services to build robust, efficient, and reliable power infrastructures.

Our mission is to ensure the longevity and optimal performance of critical power assets, including UPS systems, emergency lighting, and both long and short-duration power backup systems. As an official distributor of high-quality C&D products, our solutions combine cutting-edge technology with proven reliability to meet demanding operational requirements.

Core Pillars of Our Engineering Design Service

Our engineering design process is carefully structured to address every aspect of your power system needs, from initial concept through detailed implementation and long-term operation.

Strategic Battery Technology Selection

Choosing the right battery chemistry and design is fundamental to system performance, safety, and lifecycle cost. Our expertise spans a wide range of technologies:

Conventional Lead-Acid Batteries

We design systems using multiple lead-acid technologies, including:

• Lead–Calcium–Tin Alloy
• Pure-Lead with Catalyst
• Advanced Lead–Carbon
• Tubular types

These options offer a range of design lives (3, 5, 10, and 10+ years) with moderate cost and performance levels, allowing us to match the right technology to your operational and budgetary needs.

Lithium-Ion Batteries (Li-ion)

For applications requiring high energy density and long service life, we design systems based on:

• Lithium Iron Phosphate (LFP)
• Lithium Nickel–Manganese–Cobalt (NMC)
• Lithium Manganese Oxide (LMO)

Key advantages include:

• High cycle life (up to about 6000 cycles for energy applications)
• Long service life (approximately 10–15 years at 25 °C)
• Compact, lightweight design
• Improved thermal stability, with thermal runaway starting at around 250 °C

In our designs, we pay close attention to state-of-charge (SOC) accuracy, temperature management, and the balance between price and quality.

Nickel-Based Batteries

Nickel–Cadmium (Ni-Cd)

• High cycle life (around 1200 cycles)
• Wide operating temperature range
• No thermal runaway issues due to aqueous electrolyte

Design considerations include a larger footprint, more frequent maintenance, and environmental concerns related to cadmium.

Nickel–Zinc (Ni-Zn)

• Service life of around 15 years
• High power capability (approximately 500+ cycles for high-power use)
• Wide temperature range
• No thermal runaway due to water-based electrolyte

Ni-Zn designs typically require a Battery Monitoring System (BMS) to prevent overcharge and must account for higher initial cost.

Emerging Alternative Battery Technologies (Roadmap 2030)

We actively monitor and plan for next-generation chemistries to support future-ready system designs.

Sodium-Ion Batteries (SIBs)

• Cost-effective for large-scale storage thanks to abundant sodium
• Lower risk of thermal runaway (higher onset temperatures than conventional Li-ion)
• Often use non-flammable or less flammable electrolytes
• Lower environmental impact

Magnesium-Ion Batteries (MIBs)

• Enhanced safety due to non-flammable electrolytes and no dendrite formation
• High abundance and environmentally benign materials
• Attractive theoretical specific capacity and energy density

Although still at the research and development stage, MIBs are considered in our long-term roadmap.

Zinc-Ion Batteries (ZIBs)

• Suitable for standby power (e.g., UPS)
• High C-rate capability (up to about 1C)
• High power density (up to roughly 9000 W/kg)
• High safety from water-based electrolytes

Our designs take into account current challenges such as dendrite growth and cathode material stability.

Aluminum-Ion Batteries (AIBs)

• Extremely high cycle life (often cited as >20,000 cycles)
• Very fast charging (potentially within minutes)
• Very high C-rate capability (up to around 180C)
• Non-flammable, less corrosive electrolytes that operate at room temperature

All-Solid-State Lithium-Ion Batteries (ASSLiBs)

• Non-flammable solid electrolytes for enhanced safety
• Higher energy density (approximately 300–500+ Wh/kg)
• Longer cycle life (800+ cycles)
• Improved thermal stability and reduced dendrite formation

In addition, we evaluate Zinc-Air (Zn-air) and Vanadium Redox Flow (VRFB) batteries for specific applications where their unique characteristics provide clear advantages.

Optimized System Architecture and Sizing

Our engineering designs focus on achieving optimal performance, long service life, and cost-effectiveness through accurate system sizing and architecture.

Current and Voltage Requirements

We carefully size battery strings and overall systems based on:

• DC and AC voltage requirements
• Maximum and average current demands
• Application profile (backup duration, cycling frequency, and load characteristics)

This ensures stable operation and adequate autonomy under both normal and emergency conditions.

Space Optimization

We design layouts that:

• Maximize energy density within your available footprint
• Facilitate easy access for operation, inspection, and maintenance

For example, VRLA batteries can be used where higher energy density and compact racking are required compared to traditional flooded batteries.

Inter-Connector Design

To ensure uniform performance and long life, we:

• Specify appropriately sized inter-connector cables between battery blocks, rows, and racks
• Design for minimal voltage drop and balanced current sharing

This helps maintain voltage balance across the entire system and reduces localized stress on individual cells.

Integration with Power Electronics

We design systems to integrate seamlessly with:

• UPS units
• Rectifiers and chargers
• DC systems and inverters

Our designs consider normal operation, float charging, equalization (where applicable), and discharge profiles to ensure compatibility and long-term stability.

Enhanced Safety and Reliability Integration

Safety and reliability are embedded in every stage of our design philosophy.

Material Selection

We prioritize materials that enhance both safety and durability. Our battery cases and covers are typically constructed from high-quality Polypropylene (PP) with UL94-V0 flame-retardant properties. PP offers:

• Superior impact resistance
• Better chemical resistance
• Lower water vapor transmission rate (WVTR) compared to ABS

Lower WVTR reduces water loss and helps extend battery life. For example, a PP case can reduce water loss by approximately 75% over five years compared to a similar ABS case.

Pure Lead Technology

We frequently specify C&D’s Pure Lead Plus (PLP) and Pure Lead Max (PLM) VRLA batteries, which use:

• 100% pure (virgin) lead for grids and active materials

Benefits include:

• Reduced grid corrosion
• Lower self-discharge
• Extended design life, often in the range of 11–16 years at 25 °C

Catalyst Technology (PLM Series)

For VRLA batteries, we may incorporate catalyst technology to:

• Improve internal oxygen–hydrogen recombination
• Reduce gassing and water loss
• Enhance internal chemical balance

These features can significantly extend service life (e.g., from around 8 years to over 15 years in suitable conditions) and lower internal resistance over time.

Thermal Management

Our designs carefully consider thermal behavior, including:

• Adequate spacing between batteries (typically about 0.5 inches or 1.25 cm)
• Proper airflow and ventilation
• Room layout and environmental control

Effective thermal management minimizes the risk of thermal runaway and uneven aging among cells.

Polarization Control

We design systems to minimize polarization imbalances between positive and negative electrodes, thereby:

• Reducing grid corrosion
• Maintaining capacity over the battery lifetime
• Improving long-term stability and reliability

Proactive Monitoring and Maintainability Design

To support continuous, trouble-free operation, our designs integrate advanced monitoring and maintainability best practices.

Battery Monitoring Systems (BMS)

We design for seamless integration with advanced BMS solutions, such as our BEMoS platform, capable of monitoring:

• Total system voltage
• Individual battery voltage
• Charge and discharge current
• Internal resistance (Ri)
• Battery and ambient temperatures

These systems enable:

• Real-time condition monitoring
• Early detection of problems such as high Ri, low cell voltage, or abnormal temperature rise
• Automatic alerts via pop-up, SMS, and email

BMS integration is particularly valuable for high-voltage, high-current UPS systems where early fault detection can prevent costly downtime.

Maintainability Standards

Our designs align with key international battery maintenance standards, including:

• IEEE 450 for vented lead-acid batteries
• IEEE 1188 for VRLA batteries

Practical design features include:

• Clear access to terminals for cleaning and torque checks
• Logical and visible battery numbering for easy identification
• Space allocation for safe maintenance procedures

Site Preparation Guidelines

We also provide design input for site preparation, including:

• Recommendations for acid-resistant floor coatings
• Adequate lighting for inspection and maintenance
• Suitable ventilation and environmental control strategies

The PEC Technology Advantage in Engineering Design

Partnering with PEC Technology (Thailand) Co., Ltd. for your engineering design needs means leveraging:

• Decades of specialized experience in power electronics and battery systems
• Deep understanding of diverse battery chemistries and their real-world behavior
• Rigorous, standards-based design methodologies
• A strong focus on safety, reliability, and lifecycle cost

By meticulously designing for reliability, safety, and maintainability, we help you:

• Minimize unexpected downtime
• Maximize return on investment
• Achieve sustained operational excellence across your critical power infrastructure

Contact PEC Technology (Thailand) Co., Ltd.

We welcome the opportunity to discuss your battery engineering design requirements and develop solutions tailored to your applications.

Address: 181, 183 Sukontasawat Rd., Ladprao, Bangkok 10230 Thailand

Email: sales@pectecth.co.th

Phone: +66-2907-8521

Website: www.pectecth.co.th

Preventive Maintenance Services | PEC Technology (Thailand) Co., Ltd.

At PEC Technology (Thailand) Co., Ltd., founded in 1995, we recognize that the reliability of your power and energy storage systems depends on proactive care, not just quality equipment. With over 28 years of specialized expertise in power electronics and the battery business, led by our founder Mr. Kasiean Sukemoke, we provide comprehensive preventive maintenance services designed to maximize system reliability and extend battery life.

Our maintenance services cover critical power infrastructure, including UPS systems, emergency lighting, and both short- and long-duration backup solutions.

Why Battery System Maintenance Matters

Regular preventive maintenance is essential to:

• Maximize system reliability during power outages and critical events
• Extend battery service life and reduce the risk of premature failure
• Enable timely system adjustments, such as charger and float voltage calibration
• Identify weak or abnormal cells early, before they affect overall system performance
• Plan strategic replacements for individual cells or complete battery banks in a controlled, budgeted manner

Our Preventive Maintenance Program

1. Strong Foundations: Installation and Setup

Long-term reliability starts with proper installation. As part of our service lifecycle, we emphasize:

• Site Preparation Adequate ventilation and lighting to support cooling, safe operation, and effective maintenance.
• Protective Flooring Epoxy-coated floors and racks to protect against spills, especially for flooded lead-acid batteries.
• Optimal Spacing Typical spacing of around 0.5 inches (1.25 cm) between batteries to aid heat dissipation and allow safe, orderly cable routing.
• Connection Integrity Cleaned terminals, correct torque application, clear polarity checks, and proper routing to ensure low-resistance, safe connections.
• Grounding and Integration Verification of 0 V potential between battery terminals and metallic structures, and safe integration with breakers, switches, chargers, and UPS systems.

These practices create a stable foundation that supports effective ongoing maintenance.

2. Comprehensive Maintenance Procedures

Our preventive maintenance program combines visual inspection, electrical measurements, and trend analysis.

a. Initial Data Collection and Visual Inspection

At each maintenance visit, our technicians:

• Record key system information:
  • Battery brand and model
  • System type (UPS, DC system, etc.)
  • Charger and load characteristics
  • Historical maintenance and test data
• Perform external inspections to identify:
  • Corrosion on terminals or connectors
  • Case swelling or deformation
  • Electrolyte leaks or staining
  • Rust, burn marks, or other signs of overheating or damage

This provides a clear baseline and helps quickly identify developing issues.

b. Key Parameters Monitored

We regularly measure and evaluate critical electrical and environmental parameters such as:

• System Voltage (Float Voltage)
  • Measured monthly and compared against manufacturer recommendations.
  • Undercharge reduces available capacity and may lead to sulfation.
  • Overcharge accelerates grid corrosion, increases gassing, causes dry-out, and can contribute to thermal runaway.
  • Ripple Voltage should typically not exceed about 0.5% of the DC bus voltage.
• Cell / Block Voltage
  • Checked quarterly to ensure consistency across all cells or blocks.
  • Significant deviations can indicate shorted cells, open circuits, or accelerated aging.
• Battery Current
  • Float Current: Expected to be very low (for example, ≤100 mA per 100 Ah).
    • For C&D Pure Lead VRLA, typical float currents are around 10 mA per 100 Ah.
  • Ripple Current: Generally limited to ≤5% of the battery Ah rating to avoid excessive heating and premature wear.
• Temperature
  • Ambient temperature: Ideal range is approximately 20–25 °C. Every 8 °C increase above this range can roughly halve the expected battery life.
  • Cell temperature: Checked quarterly. A difference greater than about 3 °C between cells may indicate internal problems or poor thermal management.
• Internal Resistance / Conductance
  • Measured quarterly using ohmic testing tools.
  • A 30–50% increase in internal resistance or 20–40% drop in conductance from baseline indicates significant degradation and potential need for replacement planning.
• Specific Gravity (Flooded Batteries)
  • Used to verify state of charge and assess uniformity across cells in vented systems.

c. Capacity Testing (Discharge Testing)

To verify the real usable capacity of the battery system, we perform controlled discharge tests:

1. Fully charge the battery bank via float charging (typically around 3 days) or an equalize charge, as recommended.
2. Record baseline measurements (voltage, temperature, internal resistance, etc.).
3. Discharge the system at a constant current according to the required test standard or specification, while logging system and cell voltages.
4. Recharge the system using appropriate float or equalize settings and confirm recovery parameters.

Capacity testing provides clear, quantifiable insight into battery health and remaining service life.

Tools and Equipment Used

Our technicians are equipped with professional-grade tools to ensure accurate measurements and safe work practices, including:

• Digital Multimeter (DMM)
• Clamp Meter
• Thermometer or temperature probe
• Hydrometer (for flooded batteries)
• Torque Wrench
• Ohmic Tester (for internal resistance / conductance)
• Brass brush and cleaning materials
• Soda bicarbonate solution (for neutralizing spills and corrosion)
• Distilled water (for appropriate flooded cell maintenance)
• Full safety gear (PPE) for electrical and chemical protection

The Advantage of Battery Monitoring Systems (BMS) – BEMoS

To enhance preventive maintenance, PEC Technology provides and integrates the Battery Enterprise Monitoring System (BEMoS).

Key capabilities include:

• Real-Time Monitoring Continuous tracking of system and cell voltages, charge/discharge current, internal resistance (Ri), and temperature.
• Proactive Fault Detection Identification of abnormalities such as high Ri, low cell voltage, or abnormal temperature rise before they cause failures.
• Data Logging and Trend Analysis Historical data enables trend analysis, helping plan maintenance and replacements based on condition rather than guesswork.
• Automated Alarms Alerts delivered through software notifications, SMS, and email to ensure timely response to critical events.
• Remote Monitoring Web-based interfaces for remote visibility, ideal for distributed sites and high-availability environments.

BEMoS is particularly valuable for large-scale UPS systems with high voltage and current, where manual checks alone may not be sufficient.

PEC Technology’s Commitment

By partnering with PEC Technology (Thailand) Co., Ltd. for preventive maintenance, you gain:

• Decades of focused expertise in battery systems and power electronics
• Rigorous adherence to international standards, including IEEE 450 and IEEE 1188
• Extended battery and system life through structured, proactive care
• Tailored maintenance and monitoring solutions designed for uninterrupted, high-reliability operation

Our goal is to help you avoid downtime, control lifecycle costs, and keep your critical power systems performing at their best.

Contact Us

PEC Technology (Thailand) Co., Ltd. 181, 183 Sukontasawat Rd., Ladprao, Bangkok 10230, Thailand

Email: sales@pectecth.co.thPhone: +66-2907-8521 Website: www.pectecth.co.th