Description
Product Overview
The STINGER 80 AMP Battery Isolator Relay is engineered for 12 V automotive systems, providing a reliable solution to prevent primary battery drain. Constructed with silver‑plated contacts and a durable screw‑type connector, it supports a continuous current of 80 A and a peak of 150 A, delivering up to 960 W of power. Its compact dimensions (8.5 × 5.8 × 2.4 in) and lightweight design (0.01 oz) make it easy to install in limited‑mount spaces.
Usage
Designed for trucks, RVs, marine vessels, and off‑road vehicles, this relay isolates auxiliary batteries, ensuring the main battery remains charged during extended idle periods. Ideal for users who need a dependable power source for accessories such as lights, winches, or communication equipment without risking primary battery depletion. 
Why Choose Us
STINGER’s reputation for automotive reliability backs this isolator relay, which undergoes rigorous testing to meet industry standards. The silver contact material offers superior conductivity and corrosion resistance, while the limited‑mount design fits tight engine compartments. Backed by a 4.7‑star rating from over 1,500 customers, this product combines performance, durability, and ease of installation.
Key Features
- 80 A continuous, 150 A peak current rating for robust power transfer
- Silver‑plated contacts ensure low resistance and long‑term reliability
- Screw‑type connector simplifies secure mounting in confined spaces
- Designed for 12 V systems, supporting up to 960 W of power
- Prevents primary battery discharge, extending overall battery life
FAQ
Can this relay be used with both lead‑acid and AGM batteries?
Yes, the STINGER isolator relay is compatible with standard lead‑acid, AGM, and gel batteries commonly used in automotive and marine applications.
What is the recommended wiring gauge for optimal performance?
For the 80 A continuous rating, we recommend using 8 AWG cable on the primary side and 10 AWG on the auxiliary side to minimize voltage drop.
Is the relay suitable for marine environments?
Absolutely. The sealed housing and corrosion‑resistant silver contacts make it ideal for marine and offshore use, provided it is installed in a dry compartment.
How does the relay protect the main battery during idle periods?
The relay remains open when the engine is off, isolating the auxiliary battery and preventing it from drawing power from the primary battery.
What warranty does STINGER offer on this product?
STINGER provides a one‑year limited warranty covering defects in materials and workmanship.
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