MaySpare 12V Battery Isolator 200A Automatic Surface Mount

Description

Product Overview

The MaySpare 12V Battery Isolator is engineered for dual‑battery setups in automotive and off‑road environments. Featuring a robust 200 A continuous current rating and a 300 A surge capability, this automatic isolator ensures both batteries receive charge from the alternator while preventing discharge when the engine is off. Constructed with a screw‑type connector and surface‑mount design, installation is straightforward and reliable.

Usage

Ideal for car audio enthusiasts, off‑road vehicles, and any application requiring a secondary battery, this isolator keeps your primary battery ready to start the engine while the auxiliary battery powers accessories. Connect the small studs to ground and ignition sources as shown in the wiring diagram; the order of large and small studs does not affect performance.

Why Choose Us

MaySpare delivers a voltage‑drop‑free solution, unlike conventional isolators that can reduce power to the second battery. Our product undergoes strict quality testing, ensuring durability under harsh conditions. Backed by responsive customer support, we provide assistance for installation and any post‑purchase questions.

Key Features

• Automatic operation eliminates manual switching between batteries.
• 200 A continuous and 300 A surge handling supports high‑power audio systems.
• No voltage drop to the auxiliary battery, preserving performance.
• Surface‑mount screw connectors simplify installation and ensure a secure fit.
• Dedicated customer support for quick answers and troubleshooting.

FAQ

How does the isolator protect the batteries?

When the engine is running, the isolator allows the alternator to charge both batteries. When the engine stops, it automatically disconnects the auxiliary battery, preventing it from draining the starter battery.

Can I install this isolator myself?

Yes. The unit uses screw terminals and a surface‑mount design, and the wiring diagram is included. Basic electrical knowledge is sufficient.

What size batteries is this isolator compatible with?

It works with standard 12 V lead‑acid or AGM batteries commonly used in automotive and marine applications.

Is there a warranty?

MaySpare provides a one‑year limited warranty covering manufacturing defects, plus access to our support team for any installation help.

Will this isolator affect my vehicle’s warranty?

Installation of an aftermarket isolator does not typically affect the vehicle’s original warranty, but we recommend checking with your dealer if you have concerns.