Technology / product information

Power banks are convenient for charging smartphones and LED lights. But what happens when your power bank is drained? The magnesium-air battery "Mg:air," developed by KEM (THAILAND) CO., LTD., is a saltwater-activated emergency battery designed as the "last power source" for critical situations. It’s single-use, portable, and safe for indoor use.

■ No Pre-Charge Needed—Power with Just Water and Salt
Mg:air is an air battery using magnesium and air's oxygen, activated by a saltwater solution. With no stored electricity, it generates power only when needed—upon adding saline. The USB output can fully charge one smartphone. This ensures reliability without relying on pre-charged devices.

■ Safe for Indoor Use and Long-Term Storage
Because activation begins only when saltwater is added, Mg:air can be stored safely for up to 5 years. It is silent, fuel-free, and emits no gas, making it ideal for indoor use at shelters, hospitals, and homes. Its 350g weight allows easy transport during evacuations.

■ When Mg:air Makes the Difference
- Your power bank is completely drained
- Emergency generator fuel runs out
- Quiet, safe indoor power is needed
- Providing 1 phone charge per person at a shelter

■ Why Mg:air Stands Out
- Instantly activated with saltwater—no charge or fuel needed
- One full smartphone charge
- Lightweight (~350g) and easy to carry
- 5-year shelf life with no maintenance
- Silent, non-toxic air battery

■ Manufacturer: KEM (THAILAND) CO., LTD.
Headquartered in Chonburi, KEM (THAILAND) CO., LTD. is part of Japan’s Katoh Electrical Machinery Co., Ltd. They specialize in the development of power devices and metal parts, delivering safe and dependable emergency solutions across Thailand.

KEM supports local governments, healthcare facilities, factories, and shelters with a nationwide distribution network. Mg:air is gaining attention as a lightweight, safe, and deployable emergency battery ideal for disaster preparedness.

For brochures and inquiries, please contact KEM (THAILAND) CO., LTD.


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