Product Description

Blue Sea Systems 7649 Mini Add-A-Battery Kit – Dual Circuit Switch with 65A ACR

The Blue Sea Systems 7649 Mini Add-A-Battery Kit is a compact, high-quality solution for managing dual battery systems in marine, RV, or off-grid setups—designed specifically for alternators up to 65 A. It includes a Dual Circuit Plus™ battery switch and a 65 A m-Series Automatic Charging Relay (M‑ACR), delivering reliable battery isolation and automatic charging control.

Features

  • Automatic Battery Combining: The 65 A relay automatically combines batteries during charging and isolates them during engine cranking or when not charging to protect the start battery :contentReference[oaicite:1]{index=1}.
  • Dual Circuit Plus™ Switch: ON/OFF switch isolates engine and house circuits, allows emergency COMBINE—easy manual control :contentReference[oaicite:2]{index=2}.
  • Heavy-Duty Ratings: Supports alternators up to 65 A; relay rated 65 A continuous, 115 A intermittent; switch rated 300 A continuous, 675 A cranking :contentReference[oaicite:3]{index=3}.
  • Marine-Grade Construction: Tin-plated copper studs, ignition-protected, IP66/IP67 waterproof, safe for engine compartment installs :contentReference[oaicite:4]{index=4}.
  • LED Status Indicator: Visual feedback shows charging and relay status for easy diagnostics :contentReference[oaicite:5]{index=5}.

Specifications

  • Nominal Voltage: 12/24 V DC
  • Relay Rating: 65 A continuous, 115 A intermittent
  • Switch Rating: 300 A continuous, 675 A cranking
  • Ingress Protection: IP66/IP67
  • Kit Weight: ~1.0 lb (0.45 kg)
  • Included Components:
    • m-Series 6011 Dual Circuit Plus™ Switch
    • m-Series 7601 65 A Automatic Charging Relay

Applications

  • Small boats or outboards with alternators up to 65 A
  • Recreational vehicles and camper vans
  • Off-grid solar or emergency backup systems
  • Any 12/24 V dual-battery setup needing simple, automated charging and isolation

The Blue Sea 7649 kit offers safe, automated battery management in a compact, marine-grade enclosure—perfect for boaters, RVers, and off-grid enthusiasts seeking reliable, compact dual battery control.