Description
Balmar Digital Duo Charge 12/24V | Boat Supply Store
This solid-state battery combiner automatically manages charging for dual battery systems, eliminating manual intervention and the failure points of traditional isolators. It intelligently directs up to 30A of charge current to the starting battery when the house bank voltage consistently exceeds 13.2V (for 12V systems), ensuring critical starting power is always available. By employing advanced solid-state technology, it provides a reliable method for maintaining optimal charge levels across both start and house banks, crucial for extended offshore voyages or complex navigation setups.
Key Features
- Automated dual-bank charging without manual switching
- Solid-state design for enhanced reliability and longevity
- Voltage and current automatically managed between banks
- Eliminates the need for isolators or manual battery switches
- Versatile operation in both 12V and 24V systems
- Supports diverse battery technologies for each bank
- Optional temperature sensing for optimized start battery charging
- Programmable for four start battery types: Flooded, Deep Cycle Flooded, AGM, Gel Cell
Specifications
| Product Specifications | |
|---|---|
| System Voltage | 12V/24V |
| Maximum Charge Current (Start Battery) | 30A |
| Engage Voltage (12V System) | 13.2V |
| Engage Voltage (24V System) | 26.4V |
| Battery Programs (Start Battery) | Standard Flooded, Deep Cycle Flooded, AGM, Gel Cell |
| Temperature Sensing | Optional (MC-TS-B Sensor Cable) |
Who This Is For
Boat owners with dual battery systems (start and house) seeking an automated, reliable, and efficient charging solution that eliminates the need for manual switching or problematic isolators. It is ideal for those who may be using Balmar regulators or other charging sources and want to ensure optimal battery health.
How It Compares
| Feature | Balmar Digital Duo Charge 12/24V | Blue Sea Systems ML |
|---|---|---|
| Type | Solid-State Battery Combiner | Mechanical Relay |
| Max Charge Current (Start Battery) | 30A | 120A |
| Voltage System | 12V/24V | 12V/24V |
| Start Battery Temperature Sensing | Optional (MC-TS-B Sensor Cable) | No |
| Battery Programs (Start Battery) | 4 (Standard Flooded, Deep Cycle Flooded, AGM, Gel Cell) | None specified |
Common Concerns Answered
Will the 30A charge current be sufficient for my high-output alternator?
The 30A maximum charge current to the start battery is suitable for many standard marine charging systems. For alternators exceeding this output significantly, a higher-capacity combiner or a dedicated charging system may be required. Consult your alternator specifications and system requirements.
What is the return policy if I have issues?
This product may not be returnable to the original point of purchase. For any issues, direct contact with the manufacturer is typically required for support and warranty claims.
How does this compare to mechanical relays like the Blue Sea ML-ACR or Victron Cyrix-ct?
The Digital Duo Charge is a solid-state device, offering silent operation and potentially greater longevity due to fewer moving parts compared to the mechanical relays found in the Blue Sea ML-ACR and Victron Cyrix-ct. However, those mechanical units offer a significantly higher 120A charge current to the start battery.
Frequently Asked Questions
How does the Balmar Digital Duo Charge DDC-12/24 automatically manage battery banks?
It automatically engages to charge the start battery when the house battery voltage exceeds a predetermined threshold (e.g., 13.2V for 12V systems) and separates the banks when no charge source is present, preventing accidental discharge.
Can the Balmar DDC-12/24 be used with different battery technologies for the start and house banks?
Yes, it supports different battery technologies for both the start and house banks, offering flexibility in system configuration.
What is the maximum charge current provided by the Balmar DDC-12/24?
The maximum charge current it provides to the start battery is 30A.
Does the Balmar DDC-12/24 require a separate battery isolator or relay?
No, it is designed to eliminate the need for traditional battery isolators, relays, or manual battery switches.
Can the Balmar DDC-12/24 be used with a Balmar Max Charge or ARS-5 regulator?
Yes, it is compatible with Balmar Max Charge or ARS-5 regulators, but it can also be used independently.
