20A 12V Intelligent automatic multi-stage mains battery charger
20A 12V Intelligent automatic multi-stage mains battery charger
SKU:BC1220
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20A 12V Intelligent Automatic Multi-Stage Mains Battery Charger
Advanced 7-Stage Charging | For 12V Lead Acid, AGM, Gel & Wet Cell Batteries
The Photonic Universe BC1220 is a 20A 12V intelligent automatic multi-stage mains battery charger, engineered to safely and efficiently charge a 12V battery or battery bank from a standard 220-240V AC mains power source. This charger features an advanced 7-stage charging process, designed to deliver faster and more efficient charging while safeguarding against voltage fluctuations.
Capable of charging a single 12V battery or multiple 12V batteries connected in parallel (provided they are of the same type, capacity, and age), this unit is compatible with various Lead Acid battery types, including AGM, Gel, and Wet cell batteries.
VERSATILE USE: Ideal for charging 12V batteries in leisure vehicles, marine applications, off-grid systems, and general workshop use.
Key Features
| ▶ 7-Stage Automatic Charging — Delivers comprehensive and efficient charging for extended battery life. |
| ▶ Safe Unattended Operation — Inbuilt safety functions protect against short circuit, overheating, and overcharging. |
| ▶ Continued Charging During Use — Maintains charge even when power is drawn from the battery. |
| ▶ Boost-Charging Feature — Helps recover lost capacity and improve the condition of older batteries. |
| ▶ Dead Battery Recovery (Desulphation) — Breaks down sulphation to restore flat batteries. |
| ▶ Automatic Temperature Control — Integrated fan activates to maintain optimal internal temperature. |
| ▶ LCD Display & LED Indicators — Provides real-time charging voltage, current, stage, and battery type information. |
| ▶ Power Pack Function — Can supply direct 12V power to a load without a battery connected. |
Technical Specifications
| Parameter | Value |
|---|---|
| Operating Voltage Range (AC) | 190V - 265V / 50 Hz |
| DC Output Current | 20A |
| DC Output Voltage | 12V |
| Suggested Battery Capacity | 25 - 200Ah |
| Bulk/Absorption Charging Voltage | 14.2V - 14.8V DC |
| Float Charging Voltage | 13.2V - 13.8V DC |
| Efficiency | <88% |
| Operating Temperature Range | 0°C - 40°C |
| Dimensions (L x W x H) | 176 x 175 x 95 mm |
| Weight | 1.0 kg |
Charging & Output Modes
The Photonic Universe BC1220 charger employs a sophisticated 7-stage charging algorithm to optimise battery performance and longevity. The stages include:
| Stage | Description |
|---|---|
| 1. Desulphation | Breaks down sulphation in deeply discharged batteries to restore capacity. |
| 2. Soft Start | Gently introduces power to protect the battery and extend its life. |
| 3. Bulk Charge | Charges with maximum current until approximately 80% battery capacity. |
| 4. Absorption | Charges with declining current to maximise capacity up to 100%. |
| 5. Battery Test | Assesses if the battery can accept and retain charge. |
| 6. Recondition | A recovery stage to improve battery condition. |
| 7. Float | Maintains the battery at full charge, preventing overcharging. |
Additionally, the charger features a Power Pack function, allowing it to provide a direct 12V power supply to a load (e.g., a 12V fridge) even without a battery connected, useful during battery replacement or for powering accessories.
Typical Applications
| Application | Description |
|---|---|
| Leisure Vehicles | Maintaining and charging 12V batteries in caravans, motorhomes, and campervans. |
| Marine Use | Charging boat and yacht service batteries when connected to shore power. |
| Off-Grid Systems | As a reliable backup charger for 12V battery banks in small off-grid setups. |
| Workshop & Home | General charging and maintenance of 12V vehicle, utility, or standby batteries. |
Built-In Protection Functions
The Photonic Universe BC1220 is equipped with multiple safety features for reliable and unattended operation. These include DC short circuit protection, which automatically cuts off output and displays "-P-" on the LCD if a short is detected. It also features overheating protection, activating an internal fan and displaying "-P-" if the temperature reaches 75 ± 5°C. Furthermore, the charger provides overcharging protection, ensuring batteries are not damaged by excessive voltage. The isolated DC output enhances overall system safety.
Common Questions
What battery types are compatible with this charger?
This charger is compatible with 12V Lead Acid batteries, including AGM, Gel, and traditional Wet cell (flooded) batteries.
Can I leave the charger connected to my battery indefinitely?
Yes, the intelligent 7-stage charging process includes a float stage and overcharging protection, allowing the charger to be left permanently connected for long-term maintenance charging without damaging the battery.
What is the 'Power Pack function' for?
The Power Pack function allows the charger to provide a direct 12V power supply to a load, such as a 12V fridge, even when no battery is connected. This is useful during battery replacement or for powering accessories directly from the mains.
What accessories are included with the charger?
The charger comes supplied with a 1.5m mains AC cable featuring a UK 3-pin plug, a 0.5m DC battery cable, and spare fuses for convenience.
Installation Notes
- Ensure the charger is placed in a well-ventilated area to allow for proper heat dissipation.
- Connect the DC battery cables to the battery terminals correctly (positive to positive, negative to negative) before plugging into the mains.
- Always refer to the user manual for detailed wiring instructions and operational guidance.
- Keep the charger away from flammable materials and moisture during operation.
Before You Buy
- Verify your battery system is 12V and within the suggested capacity range of 25-200Ah.
- Confirm your battery type is Lead Acid (AGM, Gel, or Wet cell) for optimal compatibility.
- If charging multiple batteries, ensure they are of the same type, capacity, and age and connected in parallel.
- Consider the operating temperature range (0°C - 40°C) for your intended installation environment.
Please verify all specifications and compatibility requirements before purchase. Product specifications are subject to change by the manufacturer. This product comes with a 1-year manufacturer warranty.
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