Add-A-Battery Kit - 120A [Boxed]

Adding a second battery to the electrical system prevents the unintended discharge of the engine start battery.

Blue Sea Systems popular Add-A-Battery kit was primarily designed for boats with alternator output of 120A or less.

When installed, the Add-A-Battery isolates the start battery from the house loads which prevents the discharge of the start battery. The Add-A-Battery offers a simple way to control the charging and battery switching of two battery banks. The E-Series Dual Circuit Plus™ Battery Switch simplifies the switching while the SI-ACR automates charging between two batteries.

Support

  Frequently Asked Questions

Installation

Diagnostic Flowchart
Instructions
LED Status Chart

Reference

Battery Management Wiring Schematics for Typical Applications

Articles

Start Lockout for Two Engines
ACR Operation
Automatic Charging Relay - An Alternative to Multiple Output Charging Systems
SI ACR Performance during Charger Float Mode
Blue Sea Systems' Dual Circuit Battery Switch
Overcoming Dropout of House Electronics during Engine Starting

Videos

Add-A-Battery Video

Marketing Materials

Add-A-Battery

Product Certificates

CE Certificate for Automatic Charging Relays
Declaration of Conformity for E and HD-Series Battery Switches
Declaration of Conformity for PN 5511e
CE Certificate for E-Series and HD-Series Battery Switches
Declaration of Conformity for Automatic Charging Relays

7649	65A
7649003	65A
7650	120A
7650003	120A
7653
7654
7655