Φ13mm Micro Thermal Battery| Miniature Reserve Battery | SWaP-C Optimized
Mindway micro thermal battery delivers instant high power in ultra-compact form factor. Ideal forguided weapons, single-soldier portable electronics and micro-sensor systems.miniaturized power solution with a footprint of Φ13×28mm and weight of only 13g. Custom voltage/capacity.
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Product Description
Product Overview
The Mindway micro thermal battery is a miniature, instant-activation reserve power source designed for space-constrained munitions, fuzes, and portable defense electronics. With a footprint of Φ13×28mm and weight of only 13g, It enables low-cost mass production while delivering reliable power for portable defense systems.With hermetic sealing and 10+ year shelf life, Mindway's miniature thermal battery is the SWaP-C Optimized Power Solution for next-generation smart munitions.
Core Advantages
Ultra-Miniaturization: Φ13×28mm compact size, 13g ultra-light weight for easy integration.
Cost-Effective Mass Production: Optimized design for large-scale manufacturing.
Reliable Performance: 13V/20s(1A) stable output for small-scale systems.
Long Storage Life: ≥10 years of maintenance-free storage.
Safe inert storage : no thermal runaway or self-discharge.
Typical Application
Ideal for ultralight guided weapons, single-soldier portable electronics (handheld launchers) and micro-sensor systems, where size and weight are critical constraints.
Mindway is a leading provider of micro thermal battery solutions, specializing in 13mm and 15mm diameters for high-precision applications.
Key technical indicators
Dimensions: Φ 13 × 28 mm
Weight: 13g
Operating Voltage: 13V
Operating Time: 20s (1A)
Customizable parameter range for Mindway's Thermal Battery
Operating Voltage: 750 V (Unit cell: 1.9 V – 2.1 V)
Unit Cell Current Output: 10 mA – 360 A
Combined Battery Current Output: 500 A
Power Density: 15 kW/kg
Energy Density: 120 Wh/kg
Activation Time: 60 ms – 2 s
Operating Duration: 5,000 s
Storage Life: 27 years
Operating Temperature Range: –55°C to +400°C
Activation Methods: Electric ignition, mechanical ignition (overload activation)
Diameter: Ø 13 mm – Ø 140 mm
Height: 20 mm – 500 mm
Note: This represents typical performance, not maximum capability
Mindway provides customized thermal battery solutions optimized for specific voltage profiles and mechanical constraints. Contact our engineering team for technical consultation.
📧 Contact: [email protected]
🌐 Website: mindwaybattery.com
📞WhatsApp: +86 18971062394
Thermal battery principle
A thermal battery is a single-use, thermally activated reserve battery that employs electrical signals, mechanical force, or overload activation to ignite its internal heating system. This process melts the solid molten salt electrolyte between the cathode and anode into a conductive ionic state, thereby enabling the battery to deliver electrical power.

Frequently Asked Questions
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What is a micro thermal battery?
+A micro thermal battery is a miniature, one-shot reserve battery that remains inert until activated by a pyrotechnic heater. It delivers instant high power in a very small package, ideal for fuzes, portable defense electronics(handheld launchers).
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How small can the micro thermal battery be?
+Our smallest variant measures just Φ 13 × 28 mm and weighs 13 gram.
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What voltage options are available?
+Standard voltages are 1.5V, 3V, 6V, and 12V. Custom voltages up to 24V can be achieved by stacking micro cells.
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How long does it take to activate?
+Standard activation time is under 100 milliseconds. For high-speed applications, we offer a fast-activation variant with minimum 60 ms response.
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Is the battery safe for storage in munitions?
+Absolutely. The micro thermal battery is hermetically sealed and inert until electrically triggered, making it safe for long-term storage in fuzes and other ordnance applications.

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