If a battery fails, what will be the indications?

1.Lower performance 2.Low voltage 3.Cannot charge/recharge 4.Swelled container 5.Acid corrosion

How can you tell if a battery is good or bad?

You should first check the battery for defects such as a broken circuit, a short, or a broken container. If an outward problem is not apparent, then you will have to check the battery's capacity using known measuring techniques to ascertain the problem.

Why 'zero voltage' might happen?

Zero voltage means there is a broken circuit. There could be several reasons for a zero voltage state. 1.There could be a broken electrode column 2.Welding defects of the partition 3.Welding defects of the terminal

Reliable 12V Battery for Cars - Maintenance-Free by Largestar&TNT

Name: Reliable 12V Battery for Cars - Maintenance-Free by Largestar&TNT
Brand: Zhejiang Just Electrical Appliances Co., Ltd.
SKU: 2011996955

Zhejiang, ChinaZhejiang Just Electrical Appliances Co., Ltd.

US$26.00-37.00

300 Pieces

Sample price:US$30.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

1year

Model NO.

MF DIN75

Type

Maintenance-free Type

Rated Voltage

12V

Charging Voltage

1.45V~1.5V

Working Voltage

1.5V~1.1V

Charging Type

Constant Voltage

Wet Shelf Life

2~3Year

Discharging Type

Constant Current

Electrolyte

Acid Battery

Certification

ISO9001, RoHS, CE

Brand

Just

Transport Package

Cartons, Pallets

Specification

273*175*190mm

Trademark

Largestar&TNT

Origin

China

HS Code

8507100000

Production Capacity

120000 Piece/Pieces / Month

Key features

Calcium-Calcium Technology: Advanced calcium-calcium technology ensures extra long service life and reliability.

Maintenance-Free Design: Leakage and spill proof design with low self-discharge and water consumption.

Vibration Resistance: Better resistance to vibrations ensures reliable and safe performance.

Multi-Model Customization: OEM available with logo printing; wide range of voltages and capacities.

Global Certifications: Passed CE, ISO9001, TS16949, and RoHS certifications for quality assurance.

1-Year Warranty: Comprehensive 1-year warranty coverage for peace of mind.

High Capacity Output: 75Ah capacity with 600A CCA and 139 min reserve capacity.

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: ≤3.48h

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 is your terms of payment?

30% deposit in advance, 70% balance pay off against the copy of bill of loading.We'll show you the photos of the products and packages before you pay the balance.

Q:What's kinds of battery will you provide?

We have three type battery: There are many different model battery here, we can supply 2v 100ah-3000ah battery, 4v 0.25ah-4v 4.5ah battery, 6v 1.3ah-6v 12ah battery, 12v 0.8ah-12v 250ah battery.

Q:Operating temperature

Discharge: -15--40C Charge: 0--40C Storage:-15--40C

Q:Can you print my logo on the battery cover?

Yes, OEM is available,we can print your logo on the battery case, and you can offer your logo.

Q:How to maintain the battery?

The battery should be stored in clean, dry, ventilated, dark environment when not using, keep it after full charge, recharge it every 3 months or 6 months.