The COTEK CX1250 is a powerful, smart battery charger designed for a wide range of applications, from automotive and marine to renewable energy storage systems. With an advanced 3-stage charging process, universal AC input with active Power Factor Correction (PFC), and multiple safety protections, this charger ensures efficient, safe, and reliable power management for lead-acid, lithium-ion, gel, and AGM batteries.

Built for performance and durability, the COTEK CX1250 is designed to maximize battery life while offering high efficiency (up to 87%). It meets stringent safety and reliability standards, making it a trusted solution for professionals and enthusiasts alike.

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Key Features

• Universal AC Input with Active PFC

  Accepts a wide voltage range (90-264V AC) and incorporates Power Factor Correction (PFC) for energy efficiency and global power compatibility.

• 3-Stage Smart Charging Mode

  The Bulk, Absorption, and Float charging stages optimize battery performance and prevent overcharging, ensuring extended battery life.

• High Efficiency and Rugged Design

  Engineered for efficiency up to 87% with a robust, durable build tested for 2G vibration resistance, making it suitable for tough environments.

• Comprehensive Safety Protections

  Equipped with Short Circuit, Over Voltage, Over Temperature, and Brown-out protection to safeguard both the charger and batteries.

• Supports Multiple Battery Types

  Compatible with Lead Acid, Li-ion, Gel, and AGM batteries, providing versatility for various applications.

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Advanced 3-Stage Charging Process

The COTEK CX1250 uses an intelligent 3-stage charging algorithm to deliver the right charge for different battery types:

1. Bulk Charging

   The charger delivers constant current until the battery reaches its required voltage.

2. Absorption Charging

   Voltage is held at a constant level while the current gradually decreases to fully charge the battery without overheating.

3. Float Charging

   The charger reduces voltage to maintain the battery at full capacity without overcharging, allowing long-term connection without risk.

This process ensures faster charging, extended battery life, and optimal performance for all connected battery systems.

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Reliable Performance and Safety Features

Designed with high reliability in mind, the CX1250 offers advanced protection mechanisms to ensure safe and consistent operation:

• Short Circuit Protection – Automatically shuts down in case of a short circuit.
• Over Voltage Protection – Prevents excessive voltage that could damage batteries.
• Over Temperature Protection – Built-in temperature control prevents overheating.
• Brown-Out Protection – Ensures stable operation even with inconsistent power sources.

These features make the CX1250 an ideal choice for use in automotive, marine, industrial, and renewable energy applications.

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Technical Specifications

Specification	Details
Model Number	CX1250
Battery Type Compatibility	Lead Acid, Li-ion, Gel, AGM
Output Voltage	12V
Standard Boost Charge Voltage	14.4V / 14.7V (selectable via switch)
Standard Float Charge Voltage	13.8V / 13.5V (selectable via switch)
Rated Current	50A
Number of Outputs	3
Input Voltage Range	90–264V AC
Efficiency	Up to 87%
Operating Temperature Range	-20°C to 50°C
Storage Temperature Range	-40°C to 85°C
Dimensions (W x H x D)	213 x 77 x 272 mm
Weight	3.1 kg
Safety Approvals	CE, RoHS

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Why Choose the COTEK CX1250?

The COTEK CX1250 14.4V 50A Battery Charger stands out as a top choice for professionals, DIY users, and industrial applications due to its intelligent charging process, wide compatibility, and high reliability. Whether you're powering a solar energy system, an RV, a boat, or an industrial setup, this charger delivers the efficiency and safety you need.

• Smart 3-Stage Charging for maximum battery life
• Global AC Input Compatibility for universal use
• Advanced Protection Features for safety and reliability
• Efficient Power Usage with Active PFC
• Compact and Durable Design for various environments

Invest in a charger that protects your batteries, extends their lifespan, and delivers consistent power when you need it most.

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