Mf N50r, N50L, 80d26r, 80d26L, Automotive Battery, SMF Battery, Car Battery

• Customization: Available
• After-sales Service: 12 Months
• Warranty: 12 Months
• Model NO.: MF N50, MF 80D26
• 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 Resistance
• Electrolyte: Acid Battery
• Certification: ISO9001, RoHS, CE
• Brand: TNT
• OEM: Support
• Brand Name: TNT
• Standard: JIS Standard
• Color: Black
• Transport Package: Carton and Pallet
• Specification: 231*172*201*223mm
• Trademark: TNT
• Origin: China
• HS Code: 8507100000
• Production Capacity: 120000 Piece/Pieces / Month

Product Description

Maintenance Free N50 Battery

Our N50 lead-acid battery is engineered for high reliability, long service life and stable performance in automotive and extreme working environments. Designed with special alloy formula, aerospace-grade structure and advanced calcium-calcium technology, it delivers excellent high-temperature resistance, strong vibration resistance and ultra-low self-discharge. With extended design life and global certifications, it ensures consistent power output and lower maintenance cost in diverse vehicles and harsh conditions.

Product Info

Key Configurations

Type: Maintenance Free Battery

Item: MFN50

Volt: 12V

Size: 231*172*201*223mm

Capacity: 50 Ah

CCA: 400A

Reserve capacity: 89 min

Passed the certification of CE, ISO9001 and TS16949, RoHS and so on

Applications

Starting battery for cars, buses, trucks and other vehicles.

Key Features

High-temperature resistant special alloy & high-performance lead paste.

Aerospace-derived tight assembly structure.

High-strength PP material casing.

Advanced calcium-calcium technology & high-purity raw materials.

Optimized cycle charge acceptance & low grid corrosion design.

More 30% Service Battery Life.

Greater vibration resistance.

ISO/TS16949, CE, RoHS certified.

Technical Specifications

Item	N50 car battery
Rated Capacity	50AH
Nominal Voltage	12v
CCA	400A
RC	89min
Size	231*172*201*223mm
Type	lead-acid
Separator	PE Seperator
Brand Name	your own-brand name available
Flame Retardant Container	PP
Own Brand	Largestar, TNT, Booster,Just
Applications	starting battery for cars, buses, trucks and other vehicles
Certificate	ISO9001, ISO14001, CE, SASO, SONCAP etc
Dimension	Custom-made Special Dimension
(Custom configurations available upon request.)

Why Choose Us

Our Battery Advantage

Our Advantage

-Calcium-Calcium technology
-Extra long service life
-Better resistance to vibrations
-Reliable and safe performance
-Maintenance-free, leakage and spill proof
-Excellent starting performance at cold temperatures
-Low self-discharge and water consumption

-Battery factory since 1979
-Over 100,000m² manufacturing area ,capability of 3,000,000 pcs/year, value of 80,000,000USD.
-Certificate of ISO9001:2000,ISO14001,ISO/TS16949, SGS,CE,ROHS, SONCAP, Green Production Enterprise

After Sales Service

Standard Warranty: 12 months

About us

Zhejiang Just Electrical Appliances Co.,Ltd.

Founded in 1979, Zhejiang Just Electrical Appliances is a leading Chinese lead-acid battery manufacturer, originating from a state-owned plant in Hangzhou and now one of the country's largest private battery producers. With a 100,000 square meters factory, we have an annual capacity of 5 million batteries and an annual output value of USD 150 million. Supported by advanced equipment, professional technicians and experienced management, our products hold certifications including ISO9001, ISO14001, IATF16949, CE, RoHS and SONCAP. We offer a full range of high-quality dry charged and MF lead-acid batteries for automotive, marine, backup power and various industrial applications.

Packing & Delivery

FAQ

1. Order & Trade Terms
Q: What are your payment terms?
A: 30% deposit in advance; 70% balance against copy of Bill of Lading. We will send photos of products and packages before balance payment.
 
Q: What are your delivery terms and time?
A: Delivery terms: EXW, FOB, CIF, CFR.General lead time: 35 days.
 
Q: Can you accept OEM or custom production?
A: Yes. We can print your logo on the battery case, and produce based on your samples or technical drawings.
 
2. Product Range & Specifications
Q: What types of batteries do you supply?
A: We provide a full range of lead-acid batteries:
2V: 100Ah – 3000Ah
4V: 0.25Ah – 4.5Ah
6V: 1.3Ah – 12Ah
12V: 0.8Ah – 250Ah
 
Q: What is the operating temperature range?
A:
Discharge: -15°C ~ 40°C
Charge: 0°C ~ 40°C
Storage: -15°C ~ 40°C
 
Q: What is the service life of your batteries?
A: Around 3 years under normal usage.
 
3. Quality Control & Warranty
Q: Do you test all products before delivery?
A: Yes, 100% full inspection before shipment.
 
Q: What are the signs of a faulty battery?
A: Poor performance, low voltage, failure to charge, swollen case, or acid corrosion.
 
Q: How to judge whether a battery is good or defective?
A: First check for obvious defects such as open circuit, short circuit, or damaged casing. If no external issues, test battery capacity with professional equipment.
 
Q: What causes zero voltage?
A: Usually caused by open circuit, such as broken electrode column, poor partition welding, or defective terminal welding.
 
Q: What is your warranty policy for defective batteries?
A: Please provide photos and details of the defective units. Once confirmed, we will send replacements in your next order.
 
4. Operation & Maintenance
Q: How to maintain the battery?
A: Store in a clean, dry, ventilated and dark environment. Keep fully charged when not in use, and recharge every 3–6 months.

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