⚡ Exide SMF Battery (105D31L / 105D31R)

“Ready to Power Your Drive.” The 2026 Heavy-Duty Workhorse.

The 105D31 series from Exide is engineered with Lead-Tin-Calcium alloy technology. This specific chemistry is chosen for the high-heat environment of Singapore, as it minimizes water loss and ensures a longer shelf life even if the vehicle sits idle at Changi or in industrial yards for extended periods.

🔍 Key 2026 Technical Features

• 🛡️ Lead-Tin-Calcium Alloy Tech:

  Unlike standard batteries, Exide’s 2026 SMF range uses a specialized alloy that provides superior corrosion resistance. This is critical for the 105D31 size, which is often used in high-vibration diesel engines like those in the Toyota Hiace, Hilux, or Mitsubishi Triton.

• 🔋 Magic Eye Indicator:

  Equipped with a built-in hydrometer (Magic Eye) that allows you to instantly check the state of charge and electrolyte level without opening the battery, ensuring you are never caught off guard by a weak cell.

• 🔇 Duplex Cover Design:

  Features a unique “tortuous path” and flow-back mechanism that prevents acid leakage even during arduous vehicle running conditions or steep inclines, making it a favorite for commercial fleets.

• 🌬️ Flame Arrestor Safety:

  The vent openings are fitted with micro-porous filter discs. These arrest acid fumes and restrict spark propagation inside the battery, significantly enhancing safety in tight engine bays.

• 📏 High Cranking Power:

  The 105D31 designation indicates a very high cranking ratio relative to its footprint. This ensures a reliable “first-click” start for large-displacement engines, even after a long weekend of non-use.

📐 L vs. R: Which one do you need?

The only difference between the two is the Polarity (Layout). Choosing the wrong one will result in cables that are too short to reach the terminals.

• 105D31L: The Positive (+) terminal is on the Left side when looking at the battery from the terminal side. (Most common for Japanese SUVs).

• 105D31R: The Positive (+) terminal is on the Right side. (Common for certain older diesel trucks and specialized machinery).

📊 Performance Summary

• Cranking Power: ⭐⭐⭐⭐⭐ (Excellent for large diesel/petrol engines)

• Heat Resistance: ⭐⭐⭐⭐⭐ (Optimized for Singapore’s tropical climate)

• Maintenance: ⭐⭐⭐⭐⭐ (Fully sealed, zero water topping required)

• Durability: ⭐⭐⭐⭐ (Reinforced plates for high-vibration use)

The Exide 105D31 series is the definitive “reliability” choice for 2026. It is the best option for your Toyota Fortuner, Prado, or Hiace if you want a maintenance-free battery that handles heavy-duty cycles with ease.

⚡ Exide SMF Battery (105D31L / 105D31R)

The 2026 Heavy-Duty Standard for Singapore’s Workhorses.

The Exide SMF (Sealed Maintenance Free) 105D31 series is a high-capacity, robust battery engineered for large-displacement engines and commercial vehicles that face heavy daily duty cycles. Using Lead-Tin-Calcium alloy technology, it is optimized to withstand the intense humidity and engine bay heat of Singapore.

📊 Technical Specifications (2026 Model)

🚗 Compatibility & Fitment Guide

In Singapore, the 105D31 series is the “go-to” for diesel vans, large SUVs, and commercial trucks.

105D31L (Left Polarity – Most Common)

The Positive (+) terminal is on the Left when viewing from the terminal side.

• Commercial Vans: Toyota Hiace (2.8L/3.0L Diesel), Nissan NV350 Urvan.

• Large SUVs: Toyota Fortuner (Diesel), Toyota Land Cruiser Prado, Mitsubishi Pajero Sport.

• Pickups: Toyota Hilux, Mitsubishi Triton, Isuzu D-Max.

• Other: Kia Carnival (Diesel), SsangYong Stavic.

105D31R (Right Polarity)

The Positive (+) terminal is on the Right.

• Trucks: Toyota Dyna, Isuzu N-Series (certain configurations).

• Industrial: Specialized heavy machinery and older generator sets.

• Older Fleet: Certain aging Mitsubishi or Mazda diesel commercial models.

✨ Key Business & Technical Insights for 2026

• • 🛡️ Enhanced Vibration Resistance:

    As requested for your commercial clients, the Exide 105D31 uses double-clad polyethylene and glass mat separation. This protects the plates from the constant vibrations typical of diesel engines and “bad road” conditions, significantly extending the life of the battery in trade vehicles.

  • 🔋 Advanced Magic Eye & Safety:

    Includes a “Magic Eye” hydrometer for instant health checks and a Flame Arrestor in the vent caps. This prevents external sparks from entering the battery, a critical safety feature for high-output commercial charging systems.

  • 🌡️ Tropical Heat Formulation:

    The silver-calcium alloy prevents “thermal runaway,” a common cause of battery swelling in Singapore’s 30°C+ climate. It maintains a low self-discharge rate, making it ideal for vehicles that may sit idle for several days.