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RNGN Batteries Private Limited is a battery manufacturer based in Dharmapuri, Tamil Nadu, committed to delivering high-quality, reliable, and long-lasting battery solutions. Since 2017, we have been manufacturing batteries under the Thumb Rule brand with a strong focus on product quality, performance, innovation, and customer satisfaction.
Manufacturing under the Thumb Rule brand with a strong focus on quality, performance, innovation, and customer satisfaction.
Installed production capacity dedicated to delivering reliable battery solutions across applications.
Dedicated Research & Development for product development, performance improvement, and rigorous testing.
Supplying across Tamil Nadu and Puducherry, with bulk orders and OEM / private-label support for corporate customers.
We are manufacturers of Valve Regulated Lead Acid (VRLA) Batteries and Two-Wheeler Batteries, produced using modern manufacturing technology, high-quality raw materials, and stringent quality-control processes.
Our manufacturing facility is equipped with advanced machinery and supported by qualified engineers and technical professionals. Every product undergoes systematic testing and quality checks to ensure dependable performance, durability, and consistent quality.
Our dedicated Research & Development (R&D) team focuses on product development, performance improvement, and testing to meet the evolving requirements of customers and market applications.
With an installed production capacity of 1,50,000 batteries per annum, RNGN Batteries is focused on building reliable battery solutions for customers across different applications.
Thumb Rule is a registered trademark of RNGN Batteries Private Limited. We supply our batteries across Tamil Nadu and Puducherry, while also undertaking bulk orders and OEM/private-label requirements for leading businesses and corporate customers.
Our commitment is simple — quality products, reliable performance, and customer satisfaction. With continuous improvement and a strong focus on manufacturing excellence, RNGN Batteries aims to build long-term relationships with customers and business partners.
SF No. 145/1A1, Door No. 7/243, A Jetty Halli, Thokkampatti, Dharmapuri, Tamil Nadu 636807