# Balmar Digital Duo Charge - 12/24V [DDC-12/24]

**Digital Duo Charge - 12/24V**

The Digital Duo Charge (DDC-12/24) provides a “hands off” solution for charging two battery banks without the use of problematic isolators or manual battery switches. During charging the DDC-12/24 monitors voltage at the house battery. When voltage exceeds the set minimum (typically 13.2V in a 12V system and 26.4V in a 24V system) the DDC-12/24 automatically engages, providing up to 30A charge current to the starting battery. When no charge source is present, the DDC-12/24 separates the batteries so the starting battery won’t be accidentally discharged into the house battery. An optional solenoid control enables higher start battery charging output when required.

**Features:**

-   Multi Bank Charging
-   The DDC is a Solid-State Battery Combiner
-   Control Voltage and Current between House and Start Batteries
-   Eliminates the Need for an Isolator, Relay or Manually Operated Battery Switch
-   Used in Concert with Max Charge or ARS-5 Regulators
-   Can also be Employed without a Balmar Regulator
-   Works in Both 12V and 24V Applications
-   House and Start Batteries can be different technologies
-   Start Battery Temperature Sensing Available with the MC-TS-B Sensor Cable
-   4 Battery Programs Supported for the Start Battery:
-   Standard Flooded, Deep Cycle Flooded, AGM and Gel Cell

**This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.**  
[Owner's Manual (pdf)](https://productimageserver.com/literature/ownersManual/68763OM.pdf)

## Details

- **Price:** 284.29 USD
- **Type:** Alternators
- **Tags:** Brand_Balmar, Engine Parts & Service, Engine Parts & Service | Alternators

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 284.29 USD | In stock |

## Images

- Balmar Digital Duo Charge - 12/24V [DDC-12/24] Balmar

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> Source: [Besafe1st](https://besafe1st.com/products/balmar-digital-duo-charge-12-24v-ddc-12-24)
> Updated: 2026-05-22