What are the signs of a faulty battery?

Poor performance, low voltage, failure to charge, swollen case, or acid corrosion.

How to judge whether a battery is good or defective?

First check for obvious defects such as open circuit, short circuit, or damaged casing. If no external issues, test battery capacity with professional equipment.

What causes zero voltage?

Usually caused by open circuit, such as broken electrode column, poor partition welding, or defective terminal welding.

What is your warranty policy for defective batteries?

Please provide photos and details of the defective units. Once confirmed, we will send replacements in your next order.

Premium High-Performance Acid Pack Auto Battery for Reliable Power

Name: Premium High-Performance Acid Pack Auto Battery for Reliable Power
Brand: Zhejiang Just Electrical Appliances Co., Ltd.
SKU: 2011778035

Zhejiang, ChinaZhejiang Just Electrical Appliances Co., Ltd.

US$20.00

300 Pieces

Product profile

Customization

Available

Type

Lead-Acid Batteries

Usage

Car

Model NO.

MF NS40ZL

Nominal Voltage

12V

Discharge Rate

Low Discharge Rate

Shape

Square Battery

Electrolyte

Acid

Installation

Packaged

Rechargeable

Chargeable

OEM

Available

Delivery Way

by Sea

Color

Black

Acid

Yes

Transport Package

Cartons/Pallets

Specification

(L x W x H): 195 x 128 x 219 mm

Trademark

JUST

Origin

China

HS Code

8507100000

Production Capacity

120, 000 PCS / Month

Key features

Calcium-Calcium Technology: Advanced technology ensuring low self-discharge, long service life, and stable performance.

High-Temperature Resistance: Special alloy formula designed for extreme working environments and high heat.

Vibration Resistance: Aerospace-derived tight assembly structure provides strong vibration resistance.

Global Certifications: Certified by ISO9001, ISO14001, IATF16949, CE, RoHS, SASO, and SONCAP.

OEM & Customization: Full OEM service available including logo printing, custom dimensions, and design customization.

100% Quality Inspection: Every product undergoes 100% full inspection including visual and function checks before shipment.

Low Maintenance Cost: Maintenance-free design with excellent starting performance and low water consumption.

Wide Application Range: Suitable for cars, buses, trucks, marine, backup power, and various industrial applications.

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: ≤2.38h

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.