BATTERY DOCTOR Battery Isolator: 100A, 12V
The BATTERY DOCTOR Battery Isolator (MPN 20090) is a solenoid/relay isolator rated for 100A maximum current and 12V maximum voltage, in a black housing with no voltage drop range specified. This product is available…
SKU 3G-OTH-493840
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Product Description
The BATTERY DOCTOR Battery Isolator (MPN 20090) is a solenoid/relay isolator rated for 100A maximum current and 12V maximum voltage, in a black housing with no voltage drop range specified. This product is available through 3G Electric, which interprets customer demand and supplies genuine industrial equipment across 14 departments — with specialist depth in combustion, pumps and controls as an authorised distributor for brands including FBR, Interpump, Riello, Beckett, Schneider, ABB, Siemens, SKF, Festo, and Fluke.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is a BATTERY DOCTOR battery isolator used for?
A BATTERY DOCTOR battery isolator prevents dual-battery systems from draining each other, commonly used in marine, RV, and automotive applications. It allows charging from a single alternator while keeping starting and house batteries isolated. 3G Electric supplies this genuine 100A, 12V solenoid/relay isolator worldwide.
What are the specifications of the BATTERY DOCTOR 20090 battery isolator?
The BATTERY DOCTOR 20090 battery isolator is rated for 100A maximum current and 12V maximum voltage, with no voltage drop range specified. It has a black housing and is a solenoid/relay type isolator. 3G Electric sources this genuine BATTERY DOCTOR part for global delivery.
Where to buy a BATTERY DOCTOR battery isolator worldwide?
3G Electric supplies the BATTERY DOCTOR battery isolator (MPN 20090) worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we interpret your demand and deliver genuine equipment across 14 departments, including specialist expertise in combustion, pumps, and controls.
How to install a BATTERY DOCTOR battery isolator?
Install the BATTERY DOCTOR battery isolator between the alternator and dual batteries, connecting the input to the alternator output and outputs to each battery positive terminal. Ensure the 100A rating matches your system's maximum current. 3G Electric supplies this 12V solenoid/relay isolator for global applications.
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Common applications for BATTERY DOCTORBATTERY DOCTOR Products
3G Electric supplies BATTERY DOCTOR solenoid/relay isolators. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

