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All-in-one Mastervolt Battery Isolator Bi 1202-s 12/24v-120a #83012021 Perfect For Gifting [QcB3xs14]

$39.99 $127.99 -69%

Mastervolt Battery Isolator BI 1202-S: Your Ultimate Power SolutionIntroducing the Mastervolt BI 1202-S Battery Isolator, a cutting-edge device designed to ensure optimal performance and reliability for your battery system. This isolator is engineere

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Mastervolt Battery Isolator BI 1202-S: Your Ultimate Power Solution

Introducing the Mastervolt BI 1202-S Battery Isolator, a cutting-edge device designed to ensure optimal performance and reliability for your battery system. This isolator is engineered to divide your charge current with minimal energy loss, ensuring that your batteries are charged efficiently and effectively. The Mastervolt BI 1202-S stands out with its advanced features, including the Charge Mate for seamless connection and disconnection of two batteries, and the Battery Watch for real-time monitoring of battery condition. With these innovative tools at your disposal, you can maintain a healthy battery system that powers your 12 or 24 V consumers with precision and ease.

Key Product Properties and Specifications

The Mastervolt BI 1202-S is built with the highest quality materials and technology. It features conventional diode technology with a diode voltage drop of approximately 0.6 V, which can be easily compensated for by adjusting the output voltage of your connected charger or alternator. This isolator is compact and fully solid state, which not only prevents wear but also ensures a lightweight design ranging from 580 to 1300 grams. The isolator is constructed with completely corrosion-proof materials, featuring aluminum heat sinks and synthetic encasements for the electronic components. The molded diode splitters and solid bolt connections with nuts and locking rings make installation a breeze. Here are some key specifications: it has two battery outlets, dimensions of 8.1 x 5.5 x 3.1 inches, and a weight of 2.6 pounds. The maximum output for battery chargers is 80 A, and for alternators, it's 120 A, ensuring that it meets the demands of various applications.

Practical Applications and Benefits

Whether you're a boater, camper, or off-grid enthusiast, the Mastervolt BI 1202-S Battery Isolator is an indispensable tool for maintaining a robust power system. Its ability to isolate and combine batteries ensures that your equipment receives a consistent and reliable power supply. The Battery Watch feature provides peace of mind by monitoring your battery's condition, allowing you to take proactive measures to extend battery life. With this isolator, you can enjoy the benefits of a well-maintained battery system that enhances your daily activities and ensures that you're never without power when you need it most.

What Our Customers Say

December 27, 2025

Absolutely no complaints!

Well made and worth the money.

- Damian F..

December 27, 2025

Absolutely no complaints!

Extremely well-designed.

- Cole N..

December 27, 2025

Absolutely no complaints!

An amazing product for the price.

- Romeo T..

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