Toyota Expands Local Battery Production at Karawang Plant

Toyota is ramping up domestic battery production at its TMMIN plant in Karawang to support its hybrid lineup and meet local content requirements. The facility assembles two types of batteries: Li-ion units for the Veloz HEV and Yaris Cross HEV, and NiMH batteries for the Kijang Innova Zenix HEV. This CKD (completely knocked down) approach allows the automaker to reduce reliance on imports for its hybrid models. The process involves a multi-step workflow where personnel trained for three months assemble the units. Fasilitas Perakitan Baterai Demi Kejar TKDN Pada Plant 2 TMMIN di Karawang, kita bisa melihat aktivitas produksi mobil-mobil Toyota yang kita kenal.

Building a single hybrid battery pack takes approximately 17 minutes of direct work. However, thanks to a team of technicians, the entire unit can be completed and readied for installation in about 2.3 minutes. The collaborative effort of multiple trained staff members ensures rapid throughput without compromising quality. Before a battery is mounted to a vehicle, it undergoes a charging process to reach 90 percent capacity. This step is particularly important for export units that may remain dormant in storage for extended periods, ensuring the hybrid system functions reliably from the moment of delivery.

Assembly Timeline and Testing

The TMMIN plant in Karawang currently handles the assembly of several popular models, including the Yaris Cross, Avanza, Veloz, and Kijang Innova Zenix. The production of these vehicles serves both the domestic market and international buyers. Plans for the future include expanding battery production capabilities to Plant 1, specifically to accommodate next-generation battery technology. This expansion aims to support higher local content standards (TKDN) as the industry evolves. Notably, the battery for the all-electric Toyota bZ4X remains imported as a complete unit from Japan.

Domestic Engine Production

Further down the production line at Plant 3, TMMIN manufactures the Toyota NR engine series. This series includes three variants: the standard NR, the NR-Kai, and the NR-HV. The NR-Kai version, developed in collaboration with Daihatsu, features an integrated engine mounting design that reduces costs and simplifies assembly. Meanwhile, the NR-HV variant is heavily modified for hybrid use. It differs from the standard engine in component design and combustion cycle, operating on the Atkinson cycle rather than the Otto cycle found in conventional engines. Paling Jelas adalah di Velozhybrid dan Yaris Cross hybrid yang memakai mesin 2NR-VEX.

xEV Center Experience

Toyota operates an xEV Center designed to educate the public about new energy vehicles. This is a gallery where the public is helped to understand new energy cars. There are 3 models of cars disassembled so we can know how they work. Ketiganya adalah Toyota Veloz hybrid, Toyota Prius generasi keempat dan Toyota Mirai generasi pertama. Ya, bahkan kita bisa melihat cara kerja mobil fuel cell hydrogen di sini. Puncaknya, kita bisa mencoba beberapa mobil-mobil Toyota yang tidak umum.

Ada Toyota Kijang Innova Reborn listrik yang sempat viral, Toyota Coms EV, Toyota bZ4X dan Toyota Mirai FCEV generasi kedua. Ya, sedan Toyota Mirai yang tampilannya gagah bak Lexus dan bertenaga hidrogen pun bisa dicoba. Sayangnya kita tidak bisa mengemudikannya sendiri, hanya merasakan sebagai penumpang. Kita juga bisa melihat stasiun pengisian hidrogen untuk Toyota Mirai, namun karena keterbatasan waktu, kami hanya sempat mencoba Toyota Mirai dan tidak sempat melihat proses pengisian hidrogennya.