Works with 12V lead-acid batteries for cars, motorcycles, tricycles, and solar systems.

Does the analog ammeter show real-time current?

Yes, displays real-time current. Drops near 0A when fully charged.

Is it normal for the charger to warm up?

Slight heat is normal due to high current and cooling fan. Disconnect if fan stops or unit overheats.

Can this charger be customized?

Yes, we offer customization of logo, packaging, plugs, output, and parameters. MOQ required. Contact us for details.

Durable 12V 50A Charger with Built-in Protection for Safe Use

Name: Durable 12V 50A Charger with Built-in Protection for Safe Use
Brand: Guangzhou Jianrui Electronics Co., Ltd.
SKU: 2305563015

Guangdong, ChinaGuangzhou Jianrui Electronics Co., Ltd.

US$18.90

1-199 Pieces

US$17.58

200-499 Pieces

US$16.91

500-999 Pieces

US$16.23

1,000+ Pieces

Product specifications

Charging power

Sample price:US$19.00/piece.Request sample

Product profile

Customization

Available

Rated Power

12V-170W

Charging Current

12V/50A

Model NO.

MA-1250A

Input Voltage

160~250V

Type

Lead-Acid Battery Charger

Charging Type

Electric Charger

Principle

Half-Bridge Charger

Display Mode

Analog Ammeter Display

Charging Mode

4-Stage Intelligent Charging

Built-in Protection

Reverse Connection, Overcharge, Overload, Short Ci

Heat Dissipation

Aluminum Alloy Casing ,Cooling Fan

Applicable Battery Type

Lead-Acid Battery

Accessories

Battery Alligator Clips, Power Cord

Custom Service

Support Logo, Packaging, Plug Customization

Warranty Period

12 Months Warranty

Transport Package

Box Packed

Specification

24.2*14.5*7.5cm

Trademark

Jianrui

Origin

Guangzhou, China

HS Code

8504403000

Production Capacity

10, 0000 Pieces Per Year

Key features

4-Stage Intelligent Charging: MCU logic with pre-charge, CC, CV, and float modes prevents overcharging and extends battery life.

Universal Voltage Compatibility: Wide AC input range of 150V-250V supports global power grids and ensures stable operation.

Comprehensive Safety Protections: Built-in safeguards against reverse connection, overcharge, overload, short circuit, and overheating.

OEM and ODM Customization: Supports custom logo, packaging, plug types, output voltage, and specific parameters upon request.

Real-Time Analog Monitoring: Analog ammeter display shows real-time current, dropping to near 0A when the battery is fully charged.

Multi-Device Compatibility: Works with AGM, gel, flooded, and deep cycle lead-acid batteries for cars, boats, and solar systems.

Durable Aluminum Construction: Metal shell with cooling fan ensures anti-drop protection, dustproofing, and efficient heat dissipation.

12-Month Warranty Coverage: Includes 1-year warranty with global technical support, spare parts supply, and hassle-free returns.

Company profile

High Repeat Buyers ChoiceFast DeliveryFlexible Customization100% Finished Products Inspection

Guangzhou Jianrui Electronics Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤0.09h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): CIF, CFR, EXW, FOB

About Our Factory & Business Background

Address3rd Floor, No.15, Lane 14, Baishuikeng Central Street, Nancun Town, Panyu District, Guangzhou City, Guangdong Province

Plant Area660 square meters

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 Piece

Supply Chain Partners15

Our Production Capability & Technical Expertise

Main ProductsToroidal Transformer, Inverter

Production Lines2

Production MachinesReflow Soldering Machine, SMT Machine, Super Mute Terminal Machine, Winding Machine, Semi-automatic Dip Welding Machine, Cutting Machine

Inspection Type for Finished Products100% inspection(Function inspection & Visual inspection)

Inspection Method for Finished ProductsFinished product checked by packing staff

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2014-06-13

Main MarketsNorth America, Southeast Asia

Repeat Buyers Choice80%~100%

Overseas Agent/BranchNo

Product Q&A

Q:What battery voltage is this charger for?

Designed for 12V lead-acid batteries, suitable for cars, motorcycles, tricycles, gel, and maintenance-free lead-acid batteries. Not for lithium or disposable batteries.

Q:What's the input voltage range?

Wide AC input 150V-250V, compatible with most mains power.

Q:What is the charging current? How long to fully charge a battery?

Charging current 20A. 45Ah battery: ~2 hours, 60Ah: ~1.5 hours; time varies with remaining power.

Q:What is 4-stage smart charging? Benefits?

Utilizing MCU intelligent charging logic, the 4-stage charger has trickle pre-charge, constant current fast charge, constant voltage equalization, and float maintenance. Compatible with all lead-acid batteries, it prevents overcharging, bulging, and sulfation, extending battery life. Ideal for electric vehicles, energy storage, forklifts, UPS, etc.

Q:Stops charging when full? Safe for overnight?

Switches to low-voltage float mode when full. Safe for overnight charging without damage.