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Japan EV battery factory jobs are getting more attention as carmakers shift towards hybrid and electric vehicles, and two names often come up in that conversation: Panasonic Energy and Toyota Battery. Both companies make batteries for vehicles, and both are part of supply chains that need production operators, inspection staff, maintenance technicians and engineers. This article explains what battery plant work generally looks like, what related auto and EV parts jobs in Japan pay according to recent listings, and how foreign applicants can approach this field realistically. It suits readers who are comfortable with careful, repetitive work, clean and controlled environments, and strict safety rules.
Toyota Battery Co., Ltd. is a wholly owned Toyota subsidiary that makes nickel-metal hydride and lithium-ion batteries for hybrid vehicles, along with battery management systems. It was known as Primearth EV Energy until it was renamed in October 2024. Its Japanese operations are centred on Kosai in Shizuoka Prefecture, where it has three plants (the HQ/Omori, Sakayado and Arai plants), plus a plant in Ohira, Miyagi Prefecture, operating since 2010. Panasonic Energy Co., Ltd. is Panasonic’s battery company, producing cylindrical EV cells and consumer batteries; it has an office in Kaizuka, Osaka, and readers should check the company’s own site for its current list of Japanese production locations.
For foreign workers, factory roles in the auto and electrical manufacturing supply chain may potentially fit the Specified Skilled Worker (SSW) field of Industrial Products Manufacturing, depending on exact duties and occupational classification. Under this field, the employer must hire the worker directly, as dispatch (agency staffing) is not permitted for SSW manufacturing workers. Engineering and battery design roles usually need a degree and are more likely to fall under the Engineer/Specialist in Humanities and International Services status. Neither Panasonic Energy nor Toyota Battery has published a statement that we could verify about sponsoring overseas applicants, so readers should treat every opening on its own terms.
Japan EV Battery Factory Jobs 2026 – Quick Overview
| Job Title | Battery Production Operator, EV Parts Assembly Worker, Inspection Staff, Machine Operator, Technical Staff |
| Country | Japan |
| Location | Kosai (Shizuoka), Ohira (Miyagi), Osaka region and other manufacturing areas |
| Employers | Panasonic Energy, Toyota Battery and related auto/EV parts makers |
| Industry | EV and hybrid battery manufacturing / automotive parts |
| Indicative Salary | ¥230,000 – ¥330,000 per month (production roles, depending on employer and allowances) |
| Experienced Salary | ¥290,000 – ¥480,000 per month base (mid-career technical staff, Toyota Battery listing) |
| Education | 10th/12th pass for production; diploma, ITI or degree for technical and engineering roles |
| Experience | Freshers may be considered for some production roles; technical roles usually need experience |
| Japanese | Basic (JFT-Basic or JLPT N4) for SSW; higher for technical roles |
| Work Type | Full-time, contract or direct employment depending on employer |
| Work Schedule | Day shift or rotating shifts, depending on plant |
| Accommodation | Dormitory or housing support may be offered by some employers |
| Overtime | Possible, paid according to Japanese labour law |
What Does an EV Battery Factory Worker Do?
An EV battery factory worker helps produce, check and pack battery cells, modules and related components under tightly controlled conditions.
- Load raw materials or semi-finished parts onto production equipment
- Operate machines that coat, cut, stack or wind electrode materials
- Assemble cells into modules or packs following work instructions
- Monitor machine displays for temperature, pressure or alignment readings
- Carry out visual checks for dents, scratches, leaks or contamination
- Use measuring tools and testers to confirm voltage or dimensions
- Record production numbers and defects on check sheets or terminals
- Follow clean-room or dry-room rules, including protective clothing
- Handle materials carefully to prevent short circuits or damage
- Report abnormal sounds, smells or readings to a team leader immediately
- Help with changeovers when the line switches to a different product
- Pack finished items and prepare them for shipping or the next process
- Keep the workstation clean using 5S principles
Types of Japan EV Battery Factory Jobs
Battery Production Operator
Operators run the main production equipment and keep the line moving at the planned speed. This is often the entry point for people without previous battery experience.
Cell and Module Assembly Worker
Assembly workers put cells, connectors and casings together into modules. Accuracy matters more than speed here, because a small mistake can affect safety.
Quality Inspection Staff
Inspectors test finished parts, check appearance and measurements, and separate items that fail standards. Good eyesight and patience are useful.
Machine Maintenance Technician
Technicians keep equipment running, carry out preventive maintenance and fix breakdowns. ITI or diploma holders in electrical or mechanical trades may suit this path.
Production, Engineering and Purchasing Roles at Toyota Battery
Toyota Battery recruits mid-career staff directly for production-related, engineering and purchasing work, according to recent listings. Information about its factory contract or agency hiring was not available to verify.
Mid-Career Roles at Panasonic Energy
Panasonic Energy has advertised mid-career positions through recruitment agencies such as JAC Recruitment. Readers interested in factory-floor work should check the company’s official careers page for current roles, because we could not verify its production hiring details.
EV Parts Assembly Worker
Outside the battery makers themselves, many auto parts suppliers assemble EV components. These roles share many skills with battery work and can be a practical stepping stone.
Japan EV Battery Factory Jobs Salary 2026
| Position | Indicative Monthly Salary |
| EV Parts Assembly Worker (dispatch, Gunma) | ¥340,000 – ¥425,000 (hourly ¥2,000 – ¥2,500) |
| Toyota Battery Staff (mid-career, Kosai) | ¥290,000 – ¥480,000 (base) |
| Toyota Assembly Contract Worker (Toyota City) | ¥316,580 – ¥353,500 |
| Auto Parts Production Staff (Aisin group) | ¥238,900 – ¥330,000 |
| Auto Parts Assembly Worker (Gunma) | ¥199,000 – ¥257,000 |
These figures come from recent job listings and are indicative only; Panasonic Energy and Toyota Battery have not published factory-floor wages that we could verify, so the table uses related automotive and EV parts roles as a benchmark. Some figures include shift and overtime allowances while others are base pay, so always check what is included in any offer you receive.
Japan EV Battery Factory Jobs for Foreign Workers
The SSW Industrial Products Manufacturing field covers several manufacturing industries, including automobiles and parts, and electronic components and devices. Since June 2026 the field has 17 business categories, among them electrical and electronic equipment assembly and machining and metalworking. Battery production duties may potentially fit one of these categories, depending on how the employer’s business and your actual duties are classified.
SSW manufacturing workers must be employed directly by an eligible manufacturer that is a member of JAIM, the body that represents employers in this field. Dispatch arrangements are not allowed for SSW workers in manufacturing. The government has set a cap of 199,500 SSW (i) workers in this field through the end of March 2029.
Foreign residents already in Japan with a status that allows any type of work, such as permanent residents, spouses of Japanese nationals or long-term residents, may apply for contract and factory jobs more freely. Applicants should not assume every vacancy qualifies for a work visa, and a job advertisement on its own is never a visa guarantee.
Japanese Language Requirement
Battery plants rely on written work instructions and safety signs, so basic Japanese is important even for entry-level roles.
- JFT-Basic (A2 level) or JLPT N4 or above is required for SSW (i)
- Ability to read safety signs, warning labels and simple instructions
- Understanding of numbers, units and production terms
- Ability to report problems clearly to a supervisor
- Higher levels (N3 or N2) can help for inspection, maintenance or office roles
For SSW (i), candidates also usually pass the Manufacturing Specified Skills Evaluation Test (Level 1), run by JAIM with test centres operated by Prometric; Skills Test Grade 3 is an alternative, and Technical Intern Training (ii) completers may be exempt.
Eligibility
- Minimum legal working age in Japan and good health for factory work
- Valid passport and the ability to obtain a suitable residence status
- Required SSW skills and language test results where applicable
- Willingness to follow strict safety and cleanliness rules
- Ability to stand for long periods and work in protective clothing
- No colour blindness may be preferred for some inspection tasks (depends on employer)
- Clean background for immigration purposes
Education Qualification
Production roles generally do not demand higher education, but technical and engineering roles do. Typical expectations, depending on the employer, include:
- 10th or 12th pass for operator and assembly roles
- ITI in electrician, fitter or electronics trades for maintenance work
- Diploma in electrical, mechanical or chemical engineering for technician roles
- Bachelor’s degree in engineering, chemistry or materials science for engineering roles
- Safety training certificates, if available, can add value
Daily Work of an EV Battery Factory Worker
- Arrive early, change into the plant uniform and pass the entry check
- Put on protective gear such as gloves, caps and, where needed, dust-free suits
- Join the morning meeting to hear the day’s production target and safety points
- Inspect your machine or station before starting
- Begin the production cycle and follow the standard work sequence
- Check readings and samples at the set intervals
- Record output, scrap and any abnormal events
- Take scheduled breaks and lunch in the canteen or rest area
- Support colleagues during changeovers or minor stoppages
- Clean and tidy the area before the shift ends
- Hand over notes to the next shift team
Batteries store a lot of energy, so following lock-out procedures, wearing the right protective equipment and never bypassing safety devices is essential in this work.
Working Hours
- Around 8 working hours per shift, plus breaks
- Day shift only or rotating day/night shifts, depending on the plant
- Usually 5 working days per week, following a company calendar
- Overtime may be required during busy periods
- Long holidays often follow the company calendar (Golden Week, summer, New Year)
Overtime, night and holiday work must be paid at premium rates under Japanese labour law.
Accommodation
- Some manufacturers and agencies provide dormitories or company housing
- Single rooms are common in carmaker contract-worker dorms, but not guaranteed
- Housing support or rent subsidies may be offered instead of a dorm
- SSW employers must provide or help secure suitable housing
- Commuting allowance may be paid if you live outside company housing
Always check whether rent, utilities or furniture charges will be deducted from your salary before you sign.
Benefits
- Social insurance: health insurance, pension and employment insurance
- Paid annual leave according to Japanese law
- Overtime, night shift and holiday allowances
- Commuting or transport allowance
- Canteen or meal support at many plants
- Safety equipment and uniforms provided
- Skill training and possible certification support
Actual benefits depend on the employer and type of contract.
Career Growth
Production Operator → Multi-Skilled Operator → Inspector or Maintenance Technician → Line Leader → Supervisor
- Learn several processes to become a flexible team member
- Move into inspection or maintenance with experience and training
- Improve Japanese to take on reporting and leadership tasks
- SSW (ii) is available in some manufacturing categories for experienced workers
- Degree holders may move into process or quality engineering
Skills That Can Improve Your Chances
- Previous factory, electronics or battery assembly experience
- Comfort working in clean rooms or with protective suits
- Basic electrical knowledge and safe handling of components
- Experience with quality checks, gauges and testers
- Understanding of 5S and kaizen
- Japanese at N4 level or above
- Attention to detail and consistency
- Good attendance record and punctuality
- Ability to work in a team across shifts
Documents Required
- Valid passport
- Updated CV or Japanese-style resume (rirekisho)
- Educational certificates and mark sheets
- Experience certificates, if any
- SSW skills test and Japanese language test results
- Passport-size photographs
- Medical certificate, if requested
- Certificate of Eligibility and visa documents at the later stage
Document requirements can vary by employer and visa category.
How to Apply Online
Step 1: Prepare Your CV
Write a clear, one- to two-page CV that highlights any factory, electronics or assembly work.
Step 2: Describe Your Skills
Mention machines you have used, inspection tools you know and any clean-room experience.
Step 3: Gather Certificates
Collect education, ITI or diploma certificates and any safety training records.
Step 4: Check the Job Category
Confirm whether the role fits SSW Industrial Products Manufacturing or another status, and visit the official Panasonic Energy and Toyota Battery careers pages for current openings.
Step 5: Complete Required Tests
Pass the manufacturing skills test and the JFT-Basic or JLPT exam if you are applying through the SSW route.
Step 6: Attend the Interview
Prepare to explain your experience, your interest in battery manufacturing and your safety awareness.
Step 7: Review the Contract
Read the salary breakdown, working hours, housing costs and contract period carefully before signing.
Step 8: Complete Immigration Procedures
Your employer typically applies for the Certificate of Eligibility, after which you apply for the visa at the Japanese embassy or consulate. Never pay money to unlicensed agents who promise jobs or visas.
Japan EV Battery Factory Jobs 2026 – FAQs
Does Toyota Battery make batteries for electric cars?
Toyota Battery mainly makes nickel-metal hydride and lithium-ion batteries for hybrid vehicles, along with battery management systems.
Where are Toyota Battery’s plants in Japan?
Three plants are in Kosai, Shizuoka, and one is in Ohira, Miyagi.
What is Panasonic Energy?
It is Panasonic’s battery company, making cylindrical EV cells and consumer batteries.
Can freshers get battery factory jobs in Japan?
Some production roles may accept people without experience, but technical and engineering roles usually require relevant experience.
Which visa can fit battery factory work?
Production work may potentially fit SSW Industrial Products Manufacturing, depending on duties and classification; engineers usually need the Engineer/Specialist in Humanities status.
Can I work for a battery maker through a staffing agency on an SSW visa?
No. SSW manufacturing workers must be employed directly by an eligible manufacturer.
Is battery factory work dangerous?
Risks are managed through strict procedures and protective equipment, but workers must follow safety rules carefully at all times.
Is this a guaranteed job offer?
No. This article is for information only; selection depends on each employer’s requirements and immigration approval.
Final Words
Battery manufacturing is a growing part of Japan’s automotive industry, and companies such as Toyota Battery and Panasonic Energy sit at the centre of it. Entry-level production work can be a realistic starting point for applicants with basic Japanese and the right test results, while technical and engineering roles reward education and experience. Check the official careers pages for current openings, prepare your documents early, and never pay unlicensed agents for promises of a job or visa.
Disclaimer: All salary figures mentioned in this article are indicative estimates based on published job listings and industry data and may vary by employer, location, experience, and contract terms. They do not represent a guaranteed salary, job offer, or visa approval. This website is not affiliated with Panasonic Energy Co., Ltd. or Toyota Battery Co., Ltd.