3K Battery is a brand of automotive and motorcycle batteries in Thailand and other international markets. The products are marketed by Thai Storage Battery Public Company Limited (SET: BAT-3K, ABBV: TSB), which manufactures and distributes these batteries. TSB was established on 10 June 1986.
The company closed in mid-2017 due the heavy losses.
- "BAT-3K : THAI STORAGE BATTERY PUBLIC COMPANY LIMITED". SET. Retrieved 24 January 2016.
- "ปิดตำนาน '3เค แบตเตอรี่'". Bangkokbiznews (in Thai). 2017-07-24. Retrieved 2017-09-10.