Blue Seas Systems 7611 Batterylink® ACR Automatic Charging Relay
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Blue Sea Systems 7611 Batterylink® ACR Automatic Charging Relay (661-7611) is designed to automatically share a single source of charge between two battery banks, with optional Auxiliary Battery Priority for controlling when auxiliary charging is prioritized.
Key Features
- Automatically shares single source of charge with Auxiliary Battery
- Senses charging on two battery banks
- Side and bottom knockouts for cable connections
- Clip-on cover insulates terminal connections
- Studs accept multiple cable terminals
- One-piece stainless flange nuts ensure safe and secure connections
- Integrated LED indicates ACR status
- Quick connect terminals for ground and optional features
Product Compatibility
- Marine 12V/24V battery charging systems using an ACR/relay between a primary and auxiliary battery bank
- Auxiliary power setups where you want automatic charge combining and isolation behavior
Product Details
- Blue Seas Systems 7611 Batterylink® ACR Automatic Charging Relay (Automatic Charging Relay)
- SKU: 661-7611
- Weight: 499 grams
- Includes optional Auxiliary Battery Priority (as indicated in the product title/description)
- Integrated LED indicates ACR status
- Side and bottom knockouts for cable connections
- Clip-on cover insulates terminal connections
- One-piece stainless flange nuts ensure safe and secure connections
- Quick connect terminals for ground and optional features
Parts Desk Insights
Best Use Case: Use this ACR to simplify wiring between two battery banks—so your alternator/battery charger charging source can be directed automatically while helping maintain isolation when charging is not present.
Common Issues: Common installation pain points are improper cable entry through the side/bottom knockouts, skipping the insulating cover over terminals, or overlooking correct grounding/optional feature wiring referenced on the relay. Confirm terminal/grommet alignment and check the ACR installation diagram during setup.
Related Products & Accessories
- Browse Battery Isolators & ACRs - Shop the Battery Isolators & ACRs category for additional relay/isolator components that complement your dual-battery charging setup.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.