---
product_id: 11801456
title: "Blue Sea Systems 7601 m-Series Automatic Charging Relay, 12/24V DC, 65 Amp"
brand: "blue sea systems"
price: "NT$6045"
currency: TWD
in_stock: true
reviews_count: 11
category: "Blue Sea Systems"
url: https://www.desertcart.tw/products/11801456-blue-sea-systems-7601-m-series-automatic-charging-relay-12
store_origin: TW
region: Taiwan
---

# 65A max current 12/24V dual voltage 3 mounting styles Blue Sea Systems 7601 m-Series Automatic Charging Relay, 12/24V DC, 65 Amp

**Brand:** blue sea systems
**Price:** NT$6045
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your marine adventures with effortless dual battery control!

## Quick Answers

- **What is this?** Blue Sea Systems 7601 m-Series Automatic Charging Relay, 12/24V DC, 65 Amp by blue sea systems
- **How much does it cost?** NT$6045 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/11801456-blue-sea-systems-7601-m-series-automatic-charging-relay-12)

## Best For

- blue sea systems enthusiasts

## Why This Product

- Trusted blue sea systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **LED Status Indicator:** Instant visual confirmation of relay operation keeps you informed at a glance.
- • **Robust 65 Amp Capacity:** Handles high current alternators ensuring efficient and reliable charging performance.
- • **Versatile Mounting Options:** Compact design supports surface, rear, or panel mounting to fit any boat setup.
- • **Seamless Dual Battery Charging:** Automatically senses and manages charging on two battery banks for uninterrupted power flow.
- • **Smart Start Isolation Protection:** Safeguards sensitive electronics by isolating house loads during engine cranking to prevent voltage spikes.

## Overview

The Blue Sea Systems 7601 m-Series Automatic Charging Relay is a compact, high-performance 12/24V DC relay designed to automatically manage charging between two battery banks up to 65 Amps. Featuring smart Start Isolation to protect electronics during engine cranking, versatile mounting options, and an LED status indicator, it ensures reliable power management for marine applications, eliminating manual switching and preventing battery drain.

## Description

The Mini Automatic Charging Relay (M-ACR) is designed to manage the charging current from alternators up to 65 Amps found on most outboards and many inboard engines. Start Isolation (SI) protects sensitive electronics by temporarily isolating house loads from the engine circuit during engine cranking, protecting the house circuit from voltage sags and spikes. The compact design allows for three mounting styles: surface, rear, or panel mount. The M-ACR is also available as a module in a Custom 360 Panel.

Review: Great addition - A bit challenging to intall but works great. Game changer for keeping the house battery charged. Now we can fish all day no problems. 3 fish finders live well, bait airator and a radio.
Review: No brainer solution to dual batteries on a boat! - I am using this to auto charge the secondary battery in a marine application. I added the secondary battery to provide independent power to all but the engine ignition, starter, and electric fuel pump. The alternator is also on the primary battery side. I originally used a manual 1-2-all switch, but when I would crank the engine, the voltage drop caused my electronics to reboot. I changed the switch to a Blue Sea Systems e-Series Dual Circuit Plus Battery Switch and added this switch to auto charge and isolate. Works very well. My crank battery always maintains enough power to start the big v8. After running lights and electronics all night off the secondary battery, the engine starts off the primary. After a few minutes of recharging the primary, this switch engages the secondary for charging as well and the lights all brighten. When in storage, I keep a 1.5amp auto charger on the secondary battery, since I often run lights and radio while working on the boat. Have noticed this switch will engage the primary battery and keep it charges as well, given enough time. This works even with the battery switch turn off, using the wiring recommendations from Blue Sea. Great solution to a dual battery isolation issue. No more forgetting to disengage the primary battery and waking to a no start situation. I used the Blue Sea Systems 285-Series Surface Mount 50A Circuit Breaker to protect the secondary circuit.

## Features

- Senses charging on two battery banks
- Pull off and snap on insulating cover
- LED indicates ACR status

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BFVHL2I |
| Best Sellers Rank | #260,351 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #44 in Boat Shore Power Adapters |
| Brand | Blue Sea Systems |
| Brand Name | Blue Sea Systems |
| Coil Voltage | 24 Volts |
| Color | default title |
| Connector Type | Quick Connect |
| Contact Current Rating | 65 Amps |
| Contact Material | Tinned Brass |
| Contact Type | Normally Open |
| Current Rating | 65 Amps |
| Customer Reviews | 4.2 4.2 out of 5 stars (125) |
| Date First Available | July 7, 2004 |
| Included Components | ACR AUTO CHARGE RELAY 65A |
| Item Dimensions LxWxH | 390 x 300 x 670 inches |
| Item Package Dimensions L x W x H | 6.7 x 3.7 x 3.1 inches |
| Item Weight | 12.8 ounces |
| Manufacturer | Blue Sea Systems |
| Material | Plastic |
| Maximum Switching Current | 65 Amps |
| Maximum Switching Voltage | 24 Volts |
| Minimum Switching Voltage | 10.8 Volts |
| Model Name | ACR AUTO CHARGE RELAY 65A |
| Mounting Type | Panel Mount, Surface Mount |
| Number of Items | 1 |
| Number of Terminals | 2 |
| Operation Mode | Automatic |
| Package Weight | 0.26 Kilograms |
| Part Number | 7601 |
| Size | Default Title |
| Specification Met | 12v Dc, 24v Dc, 9.5v Under Voltage Lockout |
| Style | 12/24v M Acr |
| Suggested Users | boating |
| UPC | 745734293518 609542501688 675904141816 190283665086 632085076016 782386288646 |
| Warranty Description | LIMITED WARRANTY |
| Wattage | 1560 watts |

## Product Details

- **Connector Type:** Quick Connect
- **Contact Material:** Tinned Brass
- **Contact Type:** Normally Open
- **Current Rating:** 65 Amps
- **Mounting Type:** Panel Mount, Surface Mount

## Images

![Blue Sea Systems 7601 m-Series Automatic Charging Relay, 12/24V DC, 65 Amp - Image 1](https://m.media-amazon.com/images/I/217OQI4VgmL.jpg)
![Blue Sea Systems 7601 m-Series Automatic Charging Relay, 12/24V DC, 65 Amp - Image 2](https://m.media-amazon.com/images/I/81+yTdnRFBL.jpg)
![Blue Sea Systems 7601 m-Series Automatic Charging Relay, 12/24V DC, 65 Amp - Image 3](https://m.media-amazon.com/images/I/81Z-Cai-GjL.jpg)
![Blue Sea Systems 7601 m-Series Automatic Charging Relay, 12/24V DC, 65 Amp - Image 4](https://m.media-amazon.com/images/I/91ZdRqiH9uL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great addition
*by D***E on November 8, 2025*

A bit challenging to intall but works great. Game changer for keeping the house battery charged. Now we can fish all day no problems. 3 fish finders live well, bait airator and a radio.

### ⭐⭐⭐⭐⭐ No brainer solution to dual batteries on a boat!
*by T***H on August 10, 2016*

I am using this to auto charge the secondary battery in a marine application. I added the secondary battery to provide independent power to all but the engine ignition, starter, and electric fuel pump. The alternator is also on the primary battery side. I originally used a manual 1-2-all switch, but when I would crank the engine, the voltage drop caused my electronics to reboot. I changed the switch to a Blue Sea Systems e-Series Dual Circuit Plus Battery Switch and added this switch to auto charge and isolate. Works very well. My crank battery always maintains enough power to start the big v8. After running lights and electronics all night off the secondary battery, the engine starts off the primary. After a few minutes of recharging the primary, this switch engages the secondary for charging as well and the lights all brighten. When in storage, I keep a 1.5amp auto charger on the secondary battery, since I often run lights and radio while working on the boat. Have noticed this switch will engage the primary battery and keep it charges as well, given enough time. This works even with the battery switch turn off, using the wiring recommendations from Blue Sea. Great solution to a dual battery isolation issue. No more forgetting to disengage the primary battery and waking to a no start situation. I used the Blue Sea Systems 285-Series Surface Mount 50A Circuit Breaker to protect the secondary circuit.

### ⭐⭐⭐⭐ It works good. I held off one star because it also ...
*by M***K on June 12, 2018*

It works good. I held off one star because it also needs a manual override. Once a battery discharges too much it will NEVER reconnect. They do make one that has this feature but it costs a lot more $$$. For most applications, this will work well just keep this in mind that you may want a manual switch in line also.

## Frequently Bought Together

- Blue Sea Systems 7601 m-Series Automatic Charging Relay, 12/24V DC, 65 Amp
- Blue Sea Systems 5026 ST Blade Fuse Block 12 Circuit with Ground and Cover
- Blue Sea Systems 6011 m-Series Battery Switch Dual Circuit Plus, Red

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tw/products/11801456-blue-sea-systems-7601-m-series-automatic-charging-relay-12](https://www.desertcart.tw/products/11801456-blue-sea-systems-7601-m-series-automatic-charging-relay-12)

---

*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-02-01*