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40A 12V Intelligent automatic multi-stage mains battery charger

40A 12V Intelligent automatic multi-stage mains battery charger

SKU:BC1240

Regular price £159.99 GBP
Regular price Sale price £159.99 GBP
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Photonic Universe  ▶  Mains Battery Chargers

40A 12V Intelligent Automatic Multi-Stage Mains Battery Charger

Advanced 7-Stage Charging  |  Lead Acid, AGM, Gel, Wet Cell Compatible  |  Model: BC1240

The Photonic Universe 40A 12V Intelligent Automatic Multi-Stage Mains Battery Charger (SKU: BC1240) is engineered for safe and efficient charging of 12V battery banks from a standard 220-240V AC mains power source. This robust charger employs an advanced 7-stage charging process, ensuring optimal battery health, faster charging, and protection against voltage fluctuations.

Designed for unattended operation, it is compatible with various 12V Lead Acid battery types, including AGM, Gel, and Wet cell batteries. It can charge a single 12V battery or multiple 12V batteries connected in parallel, provided they are of the same type, capacity, and age.

IMPORTANT NOTE: This charger is designed for 12V battery systems only and requires a 220-240V AC mains input. Always verify battery compatibility before connecting.

Key Features

▶  7-Stage Automatic Charging — Delivers efficient and comprehensive charging to prolong battery life.
▶  Unattended Safe Operation — Inbuilt safety functions allow permanent connection without risk of overcharging.
▶  Boost-Charging Feature — Helps improve battery condition and recover lost capacity from older batteries.
▶  Dead Battery Recovery — Desulphation stage can break down sulphation in flat batteries.
▶  Continued Charging During Use — Maintains charge even when energy is drawn from the battery.
▶  Automatic Temperature Control — Integrated fan activates to maintain optimal internal temperature.
▶  LCD Display & LED Indicators — Shows charging voltage, current, stage, and battery type.
▶  Power Pack Function — Provides direct 12V power supply to loads without a connected battery.

Technical Specifications

Parameter Value
Operating Voltage Range (AC) 190V - 265V / 50 Hz
DC Output Current 40A
DC Output Voltage 12V
Suggested Battery Capacity 40 - 300Ah
Bulk/Absorption Charging Voltage 14.2V - 14.8V DC (battery type dependent)
Float Charging Voltage 13.2V - 13.8V DC (battery type dependent)
Efficiency <88%
Operating Temperature Range 0°C - 40°C
Dimensions (L x W x H) 226 x 175 x 95 mm
Weight 2.4 kg

Charging & Output Modes

Mode Description
7-Stage Automatic Charging Automatically progresses through desulphation, soft start, bulk, absorption, battery test, recondition, and float stages for optimal battery care.
Power Pack Function Allows the charger to act as a direct 12V DC power supply for loads (e.g., 12V fridge) even without a battery connected, useful during battery replacement or maintenance.
Battery Type Selection Supports charging for Lead Acid, AGM, Gel, and Wet cell batteries, with specific charging voltages tailored to each type.

Typical Applications

Application Description
Motorhomes & Caravans Ideal for maintaining leisure batteries when connected to campsite hook-up or domestic mains.
Boats & Marine Vessels Ensures marine service batteries are fully charged and maintained when docked.
Off-Grid & Backup Power Systems Provides reliable charging for 12V battery banks in cabins, sheds, or as part of a hybrid system.
Workshop & Garage Use Suitable for charging and maintaining vehicle batteries, deep cycle batteries, and other 12V applications.

Built-In Protection Functions

This Photonic Universe battery charger incorporates multiple safety features for reliable and unattended operation. These include protection against DC short circuit  •  overheating  •  overcharging  •  and reverse polarity of the battery. The charging voltage is also free from peaks, ensuring smooth and uninterrupted charging.

Common Questions

What types of batteries can this charger be used with?

This charger is compatible with 12V Lead Acid batteries, including AGM, Gel, and Wet cell types. It is crucial to select the correct battery type setting on the charger for optimal performance.

Can I leave the charger connected to my battery indefinitely?

Yes, the 7-stage automatic charging process includes a float stage that maintains the battery at 100% charge without overcharging, making it safe for long-term connection.

What is the 'Power Pack Function'?

The Power Pack Function allows the charger to supply a direct 12V DC output to power compatible loads, such as a 12V fridge, even when no battery is connected. This is useful for temporary power needs or during battery replacement.

How does the charger handle older or deeply discharged batteries?

The charger features a 'Boost-charging' stage to improve the condition and recover lost capacity from older batteries, and a 'Desulphation' stage to break down sulphation in deeply discharged batteries, helping to restore them to full charge.

Installation Notes

  • Ensure the charger is placed in a well-ventilated area to prevent overheating.
  • Connect the charger to the battery terminals with correct polarity (+ to + and - to -) before plugging into the mains.
  • Refer to the user manual for detailed wiring instructions and operational guidance.
  • Ensure all connections are secure to prevent arcing or poor performance.

Before You Buy

  • Confirm your battery system is 12V and within the suggested capacity range of 40-300Ah.
  • Verify the battery type (AGM, Gel, Wet cell) to ensure compatibility and proper charger settings.
  • Ensure you have access to a stable 220-240V AC mains power supply.
  • Consider the physical dimensions (226 x 175 x 95 mm) for your intended installation space.

All specifications are based on manufacturer data and verified information. Always consult the product manual for complete details and safety guidelines. This product is covered by a 1-year manufacturer warranty.

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