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Issue 01 · Thailand · Sodium-ion
DuraStart DuraStart Sodium Ion Battery Thailand emblem

Cover story

A new chemistry for the everyday start.

Dura Start Battery (Thailand) is bringing sodium-ion technology to the motorcycle starter battery, with research in battery management systems, packs and sodium battery materials.

Dura Start Battery (Thailand) Co., Ltd.

Explore DTZ5SContact sales
Rider on a motorcycle in a dark studio, battery glowing beneath the seat
The ride starts with the battery.Fig. 1

Technology

Why sodium?

For decades, the motorcycle starter battery has meant lead-acid. Dura Start Battery (Thailand) was founded to change that, with a focus on sodium battery technology designed specifically for vehicle start-stop systems.

The company's work spans three areas: battery management systems (BMS), battery packs and sodium battery materials. The goal is a starter battery built around safety, stability and sustainability, for riders in Thailand and across Southeast Asia.

“A cleaner automotive future where every journey begins with sustainable, abundant energy.”Dura Start mission

Its first fully specified model, the DTZ5S, puts that approach into a compact 12V package: 80A of cold cranking current, an IP67-rated ABS case and a weight of about 454 grams.

Inside, a battery management system handles discharge, temperature, faults and communication, so the battery is managed from the moment it is installed.

DuraStart DTZ5S sodium-ion battery
Fig. 2 · DuraStart DTZ5S

The product

DTZ5S

Sodium-ion · 12V 1.7Ah · CCA 80A

Energy
20.4 Wh
Internal resistance
≤35 mΩ
Cycle life
>3000 cycles @80% DOD
Self-discharge
≤5% / month @25°C
Instant discharge
70C (≤2s) @25°C
Operating temperature
Charge 0–45°C · Discharge −40–60°C
Protection · Case
IP67 · ABS
Dimensions · Weight
113×69×86 mm ±2 · 454 g
Full specificationsDownload data sheet

All values from the DuraStart DTZ5S data sheet.

Annotated exploded view of a sodium-ion battery pack showing cell interconnect, voltage sense leads, current shunt, thermal sensor and microprocessor
Fig. 3 · Inside a sodium-ion pack (illustrative render)

BMS & Safety

How the pack looks after itself

  1. Discharge managementBuilt around the sodium-ion discharge system.
  2. Thermal managementMonitors temperature, with fault alarm and protection.
  3. Communication managementKeeps the system informed of the battery's state.
  4. State-of-charge estimationAmpere-hour integration, OCV correction and Kalman filtering.

Coming next: the series

Specifications published as approved

DTZ5S

DTZ5S

Available · 12V 1.7Ah

DTZ6V

DTZ6V

Specifications coming soon

DTZ7S

DTZ7S

Specifications coming soon

DTZ7V

DTZ7V

Specifications coming soon

Marks shown on the DTZ5S data sheet

Vision

To lead the future of motorcycle energy in Thailand.

Becoming the national standard for high-performance start-stop power, and reducing the region's reliance on conventional lead-acid batteries along the way.

Partnerships

Stock the next generation of starter battery.

We're building a network of distributors, dealers and service shops across Thailand, and working with fleet operators and motorcycle-industry partners.

I'm interested as a…

  • Distributor
  • Dealer or retailer
  • Workshop or service shop
  • Fleet operator
  • Industry partner
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