Description
Blue Sea 7650 Add-A-Battery Kit | Boat Supply Store
Optimize your vessel's dual battery configuration with this comprehensive kit, engineered for seamless electrical system operation. It integrates a 120 Amp SI ACR automatic charging relay and a Dual Circuit Plus battery switch, facilitating isolation of engine and house loads while enabling emergency engine starting by combining banks. This system is designed for marine applications where reliable, automated power distribution and charging of two distinct battery banks is critical, such as on sportfishing boats operating offshore.
Key Features
- Automates charging for a two-battery bank management solution
- Isolates engine and house circuits with the Dual Circuit Plus Battery Switch
- Combines battery banks for emergency starting capability
- Simplifies switching between battery banks during operation
- Enhances electrical system reliability and convenience
- Includes a 120 Amp SI ACR for efficient charging automation
- Provides comprehensive control over dual battery systems
- Designed for robust marine environments
Specifications
| Product Specifications | |
|---|---|
| Brand | Blue Sea Systems |
| Model | 7650 Add-A-Battery Kit |
| Packaging | Boxed |
| SKU | CWR52196 |
| MPN | 7650003 |
| Battery Banks Managed | Two |
| ACR Amperage Rating | 120 Amp |
| Battery Switch Type | Dual Circuit Plus |
| Certifications | UL Listed |
Who This Is For
Boat owners operating vessels with two battery banks who require an integrated, automated solution for battery isolation, charging, and emergency starting. This system is ideal for those seeking to simplify their electrical management and ensure system reliability.
How It Compares
| Feature | Blue Sea 7650 Add-A-Battery Kit | Competitor |
|---|---|---|
| Integrated Battery Switch | Yes (Dual Circuit Plus) | No |
| Automatic Charging Relay | Yes (120 Amp SI ACR) | Yes |
| Emergency Start Capability | Yes (via COMBINE function) | No |
| Amperage Rating (ACR) | 120 Amp | 120A |
Common Concerns Answered
The instructions seem complex. What should I consider?
While the wiring diagram may appear intricate, careful review focusing on the specific functions of the Dual Circuit Plus switch and the SI ACR will clarify the setup. Many users find that understanding the purpose of each component in managing dual banks greatly simplifies the process.
I've heard the ACR sometimes doesn't engage. What could cause this?
The SI ACR engages based on voltage differentials. Ensure your charging system (alternator or shore power charger) is maintaining adequate voltage levels to trigger the ACR's engagement parameters. Reviewing the SI ACR specifications for voltage thresholds can help diagnose this.
Are the included instructions detailed enough for a beginner?
The instructions provide the necessary technical data for installation. For novice installers, consulting the product's manual URL for more in-depth explanations and diagrams, or seeking advice from experienced marine electricians, is recommended to ensure a proper and safe installation.
Frequently Asked Questions
How does the Blue Sea 7650 Add-A-Battery Kit automate battery charging?
The kit automates battery charging via the 120 Amp SI ACR. When one battery bank's voltage reaches a predetermined level indicating it is charged or being charged by the engine's alternator/shore power, the ACR automatically connects the two battery banks, allowing the charging source to charge both.
What is the primary function of the Dual Circuit Plus Battery Switch in this kit?
The Dual Circuit Plus Battery Switch allows for independent operation and isolation of two battery banks (e.g., engine and house). It also features a 'COMBINE' position, enabling the emergency start function by paralleling the battery banks.
Can this kit be used to manage more than two battery banks?
No, the Blue Sea 7650 Add-A-Battery Kit is specifically designed and optimized for the management of exactly two battery banks.
What is the amperage rating of the SI ACR automatic charging relay?
The SI (Selectable Input) ACR integrated into this kit has an amperage rating of 120 Amps.
What are the benefits of isolating engine and house circuits with this kit?
Isolating engine and house circuits ensures that critical engine starting power remains dedicated and is not depleted by house loads (e.g., lights, electronics). This prevents situations where house battery drain could lead to an inability to start the engine.
