Projecta 6/12/24V 21A 2 Stage Heavy Duty Battery Charger HDBC35

Heavy Duty 6V / 12V / 24V Battery Charger with Engine Start Function

Built for demanding workshop, transport, agricultural and industrial environments, this heavy-duty multi-voltage battery charger delivers powerful, reliable charging performance for a wide range of battery applications. Designed to charge 6V, 12V and 24V batteries, it offers both automatic and manual charging modes to suit professional users and varying battery maintenance requirements.

In automatic mode, the charger intelligently monitors battery voltage and automatically stops charging once full capacity is reached, preventing overcharging while maintaining the battery in peak condition. For more advanced requirements, manual mode allows continuous charging until the timer expires or the unit is switched off — suitable for equalisation charging and battery recovery when used by experienced operators.

Key Features

• Universal Voltage Compatibility: Compatible with 6V, 12V and 24V batteries — flexibility across automotive, commercial, agricultural and industrial applications.
• Automatic Charging Mode: Automatically stops when the battery reaches full capacity and continuously monitors voltage to prevent overcharging.
• Manual Charging Mode: Allows controlled charging and equalisation to balance cell voltage and maximise battery performance.
• Engine Start Assist: Provides a powerful 5-minute boost charge to start vehicles with flat or heavily discharged batteries.
• Adjustable Timer: Set from 0 to 14 hours — automatically switches off when the selected period is complete.
• Digital Voltage & Current Display: Built-in volt and amp meter for real-time monitoring of voltage, current and charging progress.
• Deep Discharge Recovery: Override function enables charging of low-voltage batteries not recognised by conventional chargers.
• LED Status Indicators: Displays power status, charging status, fully charged condition, reverse polarity warning, and overload protection alerts.

Ideal For

• Heavy duty transport fleets
• Automotive workshops
• Agricultural equipment
• Industrial machinery
• Commercial vehicles
• Farm maintenance
• Battery service centres

Benefits

• Charges multiple battery voltages from one unit
• Prevents overcharging with automatic charge maintenance
• Suitable for battery recovery and equalisation charging
• Engine start assistance for flat batteries
• Durable construction for demanding environments
• Clear charging status and performance monitoring

Click here to download the Instruction Manual