What devices can this charger work with?

Compatible with all 12V lead-acid batteries for cars, motorcycles, tricycles, and solar storage.

Does the analog ammeter display real-time current?

Yes, it shows real-time current. Drops close to 0A when fully charged.

Is it normal for the charger to get warm during charging?

Slight heating is normal under high current with a cooling fan. Cut power if the fan stops or unit overheats.

Can I customize this battery charger?

Yes, we offer custom logo, packaging, plug types, output current, and parameter adjustments. MOQ is required for customization; contact us for details.

Advanced 12V 50A Charger with Reverse Connection Protection Features

Name: Advanced 12V 50A Charger with Reverse Connection Protection Features
Brand: Guangzhou Jianrui Electronics Co., Ltd.
SKU: 2305495155

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 trickle pre-charge, CC, CV, and float modes to extend battery life.

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

Universal Voltage Compatibility: Wide AC input range of 150V-250V, suitable for global mains power standards.

Real-Time Analog Display: Analog ammeter shows real-time current, dropping to near 0A when fully charged.

Active Heat Dissipation: Aluminum alloy casing with cooling fan ensures stable operation under high current.

Pulse Repair Technology: Intelligent pulse repair function helps restore aging and sulfated lead-acid batteries.

OEM/ODM Customization: Supports custom logo, packaging, plug types, output current, and parameter adjustments.

1-Year Warranty Coverage: Includes 12-month warranty with global technical support and spare parts supply.

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, compatible with car, motorcycle, tricycle, gel, and maintenance-free lead-acid batteries. NOT for lithium or disposable dry batteries.

Q:What's the input voltage range?

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

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

Rated charging current 20A. A 45Ah battery charges in ~2 hours, 60Ah in ~1.5 hours; time varies with remaining power.

Q:What is 4-stage smart charging? What benefits does it bring?

With MCU intelligent segmented logic, 4-stage charging includes trickle pre-charge, constant current, constant voltage, and float maintenance. Compatible with all lead-acid batteries, it prevents overcharging, bulging, and sulfation, extending battery life. Widely used in electric vehicles, energy storage, forklifts, UPS, etc.

Q:Will it stop charging automatically when full? Can I charge overnight?

It automatically switches to low-voltage float mode when full. Safe for overnight charging.