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Free economy shipping on orders over $99
Not applicable for Truck shipment and oversized Items
BI 1203-S Isolator
Onboard systems usually consist of two or more batteries that function independently when powering the 12 or 24V consumers. These batteries require independent charging with reliable battery isolators or battery combiners.
Mastervolt offers several intelligent solutions:
Battery isolators for conventional systems with an alternator or battery charger and two or three batteries
Mastervolt’s BI battery isolators are based on conventional diode technology. The diode voltage drop (ca. 0.6 V) can be compensated for by adapting the output voltage of the connected charger or alternator. Mastervolt Mass battery chargers and Alpha Pro charge regulators are standardly equipped with automatic voltage drop compensation.
Compact and lightweight
The Mastervolt BI battery isolators are compact and fully solid-state, preventing wear. The weight varies from 580 to 1300 grams.
Robust and durable
Completely corrosion-proof material with aluminum heat sinks. The electronic components are encased in synthetic materials, the BI models have molded diode splitters.
Fast installation
The synthetic end plates feature connection lugs, the solid bolt connections with nuts and locking rings ensure easy installation.
We ship orders across USA, If your order is in stock and we process the charges to your credit card, it will ship within one business day from the date of your order. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. If you do not receive tracking information from us within three business days of your order, feel free to follow up with us at help@roamridge.com.
We offer free economy shipping for orders above $99, also we offer various flat shipping rates across the USA, However please also note that some products such as oversized, Truck shipping items are not covered in free or flat shipping rates. Please verify at checkout before making payment.
Overnight and Two day shipping orders will be shipped the same day if order is received before 2PM CST.
Roam Ridge offers a return period of 30 days from date of receipt. Return Merchandise Authorization (RMA) numbers are required for all returns. Returned products must be complete in the original packaging and resalable. Non-stock items may not be returned. Opened and/or unsealed DVDs, CDs, and cartography are not returnable unless defective. Units requiring service, either warranty or otherwise, should be returned directly to the appropriate manufacturer. For most items, customers can obtain an RMA number and process their return using the Roam Ridge website. Customers may also obtain an RMA number by sending an email to Help@roamridge.com. Be sure to provide the original invoice number, product being returned, and the reason for return. Returned merchandise may be subject to a restocking fee of up to 15%.