Automotive & Starter Batteries

Drop-in 12V sodium-ion starter batteries that crank reliably in tropical heat and daily start-stop traffic — and last 2–3× longer than lead-acid.

The Problem
  • Lead-acid starter batteries fail early in tropical heat, often well inside their rated life
  • Start-stop traffic cycles batteries far harder than lead-acid was designed for
  • AGM upgrades cost more but still fade in sustained heat and humidity
  • Unexpected failures strand vehicles and inflate fleet maintenance budgets
Why Sodium-Ion Fits
  • Rated to 70°C — resists the heat fade that kills lead-acid in engine bays
  • 2–3× the service life of typical lead-acid batteries
  • Drop-in standard sizes; works with automotive alternators
  • Up to 60% lighter, with no acid and no lithium fire risk

Starter batteries do their hardest work exactly where lead-acid is weakest: hot engine bays, humid climates, and urban stop-start traffic that cycles the battery all day. That is why replacement intervals in the tropics are often half of what the spec sheet promises.

Sodion starter packs are engineered for that duty. They fit standard tray sizes, charge from the vehicle’s existing alternator, and hold cranking performance through heat and humidity — so a battery swap is just a battery swap, not a system change.

Recommended Products

IEC 62619 Compliant • Start-Stop

Prometheus II

30Ah • 60Ah • Military Grade

Built for tough, real-world driving, Prometheus II delivers strong, reliable cranking in tropical heat and daily start-stop traffic. Its sodium-ion design resists heat fade and moisture stress and maintains consistent performance where even AGM lead-acid batteries begin to fail.

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Launching Soon

Prometheus Lite

Spark • Ember

Purpose-built for tropical climates, Prometheus Lite resists heat fade and moisture stress for longer, more consistent service life than typical lead-acid. It is ultra-light and easy to handle, making installation simple.

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