High-Performance 12V 40ah Maintenance-Free Car Battery for Auto Use

Name: High-Performance 12V 40ah Maintenance-Free Car Battery for Auto Use
Brand: Zhejiang Just Electrical Appliances Co., Ltd.
SKU: 2010432475

Zhejiang, ChinaZhejiang Just Electrical Appliances Co., Ltd.

US$18.00-30.00

100 Pieces

Sample price:US$19.50/piece.Request sample

Product profile

Customization

Available

After-sales Service

12 Months

Warranty

12 Months

Model NO.

MF N40

Type

Maintenance-free Type

Rated Voltage

12V

Charging Voltage

2.25V~2.5V

Working Voltage

1.5V~1.1V

Charging Type

Constant Voltage

Wet Shelf Life

2~3Year

Discharging Type

Constant Resistance

Electrolyte

Acid Battery

Certification

ISO9001, RoHS, CE

OEM

Support

Standard

JIS Standard

Color

White

CCA

320A

Transport Package

Cartons, Pallets

Specification

237*129*231mm

Trademark

Largestar

Origin

China

HS Code

8507100000

Production Capacity

120000 Pieces / Month

Key features

High CCA Cold-Starting Power: Delivers 320A CCA instant cranking current, ensuring reliable engine start even in cold weather or under heavy load conditions.

Ultra-Low Self-Discharge Technology: Eliminates the trouble of frequent recharging; advanced calcium-calcium formula keeps self-discharge minimal, ideal for infrequently used vehicles.

30% Longer Service Life: With optimized grid corrosion resistance and aerospace-grade assembly, the battery lasts 30% longer than standard batteries, reducing replacement frequency.

Harsh Environment Ready: Built with vibration-resistant structure and high-temperature tolerant materials, it performs stably in cars, trucks, buses and rough road conditions.

Company profile

High Repeat Buyers ChoiceYears of Export ExperiencePatents AwardedManagement Certification

Zhejiang Just Electrical Appliances Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 24 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤2.51h

AI-Powered supplier vetting

SummaryThe supplier is identified as a manufacturing factory in Lanxi, Jinhua, and reports a manufacturing area exceeding 100,000 square meters with stated production capability of 5,000,000 pieces. It reports ISO, environmental, automotive-quality, and product-related certifications, although some certification details are presented in company-description form. The supplier has broad customization and ODM capabilities, developed new products during the past year, and offers an SDK. Manufacturing controls include written corrective-action, complaint-handling, supplier-assessment, and quality-assurance procedures. Financial and cash-flow records are indicated for 2023–2025, but no detailed financial results are provided. The supplier lacks inventory, overseas warehouses, overseas agents or branches, overseas showrooms, and offline trade-show experience. It states that it provides OEM services for recognized brands, but no customer names or verifiable case details are supplied.

Supplier typeThe supplier is explicitly classified as a factory in the manufacturing industry and reports its own manufacturing area and production capability. This supports identification as a direct manufacturing supplier rather than a trading-only company.

CertificationsThe supplier reports ISO9001, ISO14001, ISO/TS16949, SGS, CE, RoHS, SONCAP, ISO9001:2015, ISO45001:2018, and other certifications. The slices provide explicit evidence of multiple certifications, although certificate validity and scope are not independently detailed.

After-Sales capabilityThe supplier has documented procedures and records for handling customer complaints and corrective and preventive actions, which supports a formal service-response mechanism. However, it has no overseas agents or branches, no overseas showroom, and no overseas warehouse, limiting demonstrated overseas after-sales infrastructure.

R&D capabilityThe supplier reports new products during the past year, ODM services, and an available SDK. These are direct indicators of product-development and technical support capability.

Production capacityThe supplier reports a manufacturing area exceeding 100,000 square meters, production capability of 5,000,000 pieces, valid contracts with associated subcontractors, 12 qualified service-capability suppliers, and written quality and supplier-management procedures. It also reports one unit of quality-control capability for own-brand quantities, while inventory capacity is explicitly unavailable.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service availability, demonstrating broad stated customization coverage.

Client casesThe supplier states that it provides OEM services for recognized brands, which is evidence of at least one category of brand-serving experience. No customer names, product examples, order history, or independently verifiable case details are provided.

Product Q&A

Q:What vehicles is the N50 battery compatible with?

This 12V 40Ah battery fits most passenger cars, light trucks and buses requiring N40 specification, and is widely used as a reliable starting battery.

Q:How long can I expect the N40 battery to last?

Thanks to advanced calcium-calcium technology and anti-corrosion design, it offers 30% longer service life than standard batteries, with consistent performance over years of use.

Q:Does the N40 battery require regular maintenance?

No, it is a maintenance-free sealed battery. No water topping-up is needed, saving your daily maintenance cost and effort.

Q:What certifications does the N50 battery have?

It is certified by ISO/TS16949, CE, RoHS and other international standards, ensuring quality and safety for global markets.

Q:Can the battery work in extreme temperatures?

Yes. The special alloy formula and high-performance lead paste give it excellent high-temperature resistance, and the 320A CCA ensures reliable starting even in cold conditions.