What devices can this charger work with?

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

Does the analog ammeter display real-time current?

Yes, it displays real-time charging current, dropping near 0A when fully charged.

Is it normal for the charger to warm during charging?

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

Can I customize this battery charger?

Yes, we offer customization services: logo, packaging, plug types, output current, and parameter adjustment. MOQ required for custom orders. Contact us for details.

Fast Charging 12V 20A Battery Charger with Overload Protection Features

Name: Fast Charging 12V 20A Battery Charger with Overload Protection Features
Brand: Guangzhou Jianrui Electronics Co., Ltd.
SKU: 2305563135

Guangdong, ChinaGuangzhou Jianrui Electronics Co., Ltd.

US$10.50

1-199 Pieces

US$9.88

200-499 Pieces

US$9.38

500-999 Pieces

US$9.00

1,000+ Pieces

Product specifications

Charging power

Sample price:US$11.00/piece.Request sample

Product profile

Customization

Available

Rated Power

12V-170W

Charging Current

12V/20A

Model NO.

MA-1220AS

Input Voltage

160~250V

Type

Lead-Acid Battery Charger

Charging Type

Electric Charger

Principle

Half-Bridge Charger

Display Mode

Analog Ammeter Display

Charging Mode

3-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

16.1*12.5*6.2cm

Trademark

Jianrui

Origin

Guangzhou, China

HS Code

8504403000

Production Capacity

10, 0000 Pieces Per Year

Key features

3-Stage Intelligent Charging: Automatically switches between bulk, absorption, and float modes for optimal battery health.

Universal Voltage Support: Wide AC input range of 150V-250V, compatible with global power standards.

Comprehensive Safety Protections: Features reverse connection, overcharge, overload, short circuit, and overheat protection.

Fast Charging Capability: 20A output charges 45Ah batteries in 2.5 hours and 60Ah in 3 hours.

Multi-Battery Compatibility: Supports AGM, Gel, Flooded, and Deep Cycle lead-acid batteries.

Efficient Heat Dissipation: Aluminum alloy casing with cooling fan ensures stability during high-current charging.

Real-Time Current Monitoring: Analog ammeter display shows real-time charging current, dropping to near 0A when full.

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

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 dry batteries.

Q:What's the input voltage range?

Wide AC input 150V-250V, suitable for mains power in most countries.

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

Rated 20A. Charges 45Ah battery in 2.5 hours, 60Ah in 3 hours; time varies with remaining power.

Q:What is 3-stage smart charging? What benefits does it bring?

3-stage includes constant current, voltage equalizing, and float maintenance charging. Prevents overcharging, extends battery life.

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

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