Smart Charger 12V 3A 4A 60W DC 14.7V 4A for SLA /AGM /VRLA /Gel Lead Acid Batteries for Electric Scooter Wheelchair Security System

1 / 5

Smart Charger 12V 3A 4A 60W DC 14.7V 4A for SLA /AGM /VRLA /Gel Lead Acid Batteries for Electric Scooter Wheelchair Security System

Still deciding? Get samples of $ !

Request Sample

Send Inquiry

Product Description

Basic Information

Model NO.

QW120-040-S

Application

Camera, Standard Battery

Nominal Voltage

14.7V

Charger Style

Intelligent Charger

Battery Type

12-Volt Lead-Acid

Size

119*60.3*37.3mm

Certification

RoHS, CE

Input Voltage

100-240VAC 50/60Hz

Output Current

Efficiency

≥ 85%

Quick Details & Packaging

Shell Material: Plastic (ABS + PC)

Shock & Vibration: SAEJ1378 Standard

Charging Mode: CC --- CV --- Float Charge

Connectors: Crocodile clip, aviation connector, XLR, Ring terminal, Anderson connector, customization available.

Packaging: 50pcs/Carton (595*362*295mm)

Lead Time: Sample within 7 work days, 15-25 days for bulk orders.

Key Features

Full auto 3 stages (CC+CV(H)+CV(F)) charging process.
Constant big charging current for significantly faster charging.
Automatically ends charging with Cut-Off output when complete.
Fan-less design with durable plastic case for silent operation.
Compatible with 12V SLA/VRLA/GEL/AGM batteries (Capacity: 4-20Ah).

Safety Protections

🛡️ Over Voltage protection

🛡️ Short Circuit protection

🛡️ Polarity error protection

🛡️ Over power protection

LED Indicator Status

The charger switches to trickle-off charging mode once the battery is full (1/10C).

Charging: Red LED

Battery Full: Green LED

Typical Model Comparison

Model	Battery Type	Input Voltage	Battery Volts	Charging Volts	Current (A)
QW064-050-F	LiFePO4	AC 100~264V	6.4V	7.3V	5A
QW128-040-F	LiFePO4		12.8V	14.6V	4A
QW148-030-L	Lithium		14.8V	16.8V	3A
QW120-040-S	Lead Acid		12V	14.7V	4A
QW240-020-S	Lead Acid		24V	29.4V	2A
QW12-24-020-S	Lead Acid		12~24V	14.7~29.4V	2A

Product Gallery

Frequently Asked Questions

Q1: What types of batteries is this charger compatible with?

A: This charger is specifically designed for 12V Lead-Acid batteries, including SLA, VRLA, GEL, and AGM types with a capacity range of 4Ah to 20Ah.

Q2: How does the 3-stage charging process work?

A: It follows a CC (Constant Current), CV (Constant Voltage), and Float Charge sequence to ensure the battery is charged quickly, safely, and maintained at full capacity.

Q3: Is it safe to leave the battery connected after it's full?

A: Yes, the charger features an automatic cut-off and switches to a trickle-off mode to prevent overcharging.

Q4: What safety features are built into the device?

A: The charger includes multiple protections: Over Voltage, Short Circuit, Polarity Error (Reverse Polarity), and Over Power protection.

Q5: Can this charger be used internationally?

A: Yes, it supports a wide input voltage range of 100-240VAC at 50/60Hz, making it suitable for use in most countries with the appropriate plug.

Q6: How do I read the LED indicator?

A: A Red LED indicates that the battery is currently charging. A Green LED indicates that the battery is fully charged and the charger is in maintenance mode.

Smart Charger 12V 3A 4A 60W DC 14.7V 4A for SLA /AGM /VRLA /Gel Lead Acid Batteries for Electric Scooter Wheelchair Security System

Product Description

Related Products

Portable 12V 24V Car AGM Lead Acid Battery Charger with LCD Display

Intelligent Repair of 12V and 24V on-Board AGM Lead-Acid Battery Chargers

Car Battery Charger 12V/24V 20A Touch Screen Automatic Pulse Repair Charger for Motorcycle Lead Acid AGM Gel Lithium Batteries

Portable 24V 5A 7-Stage Lead Acid AGM LiFePO4 Motorcycle Car Battery Charger 12V 10A Smart LCD Display Automatic Charger

60V 20ah Smart Electric Car Charger for Rechargeable AGM Gel Lead Acid Battery 12ah 14ah DC 74V 3A T Connector

Shineng Czb5c 48V 100A AGM Forklift Battery Charger for Electric Pallet Truck Boat Stacker

72V 6A Smart Battery Charger for SLA / AGM / Gel Battery

Smart 12V/4A Battery Charger for 6V/12V Lead Acid (STD, GEL, AGM)

12V 90A DC to DC on-Board Battery Charger for Flooded Gel AGM Lithium Rvs Vehicles Boats Yacht

60V 15A Input 110V AGM Battery Charger for Lvtong Golf Cart