1-3-165 - Newmar Power Newmar 165A Heavy-Duty Battery Isolator | Aztek Computers
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SKU: GOQIASBYTC |  Mfg. Part: 1-3-165  | UPC: 993281442709  |  0 Reviews  |     Share Make an offer

1-3-165 - Newmar Power Newmar 165A Heavy-Duty Battery Isolator for 3 Banks

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$374.52  $505.60
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Product Overview

Newmar 165A Heavy-Duty Battery Isolator

This reliable battery isolator is designed to automatically charge up to three batteries from one or two alternators, ensuring optimal charging without the risk of one battery discharging into another. Suitable for 12-, 24-, or 36-volt negative ground DC systems, it guarantees individual battery needs are met without overcharging.

Key Features:

  • Dual-rated heavy-duty diodes housed in a rustproof anodized aluminum heat sink.
  • Constructed for rigors of frequent use.
  • Suitable for voltage systems up to 48 volts DC, compatible with negative ground configurations.
  • Includes stainless steel mounting hardware for secure installation.
  • Protective covers to safeguard terminals.

Specifications:

  • Alternator Sources: 1
  • Battery Bank: 3
  • Max Amperage Input Capacity: 165A
  • Stud Terminal Size: 6mm
  • Dimensions (L x W x H): 9 x 4.5 x 3.1 inches
  • Weight: 5 lbs
  • Operating Temperature: -40 to +80 degrees Celsius
  • Duty Cycle: Continuous rating to 50 degrees C, derating to 70% at 80 degrees C.
  • Temperature Rise: 5 degrees C at full rated current (mounting vertically recommended for optimal cooling).
  • Voltage Drop: 0.7V at 50% load, 0.9V at full load.

*Note: This isolator is not compatible with self-exciting alternators; an external excitation lead is required. Always verify your alternator configuration with the manufacturer.

This product is non-returnable. For issues or concerns, please contact the manufacturer.

Expert Overview

The Newmar 165A Heavy-Duty Battery Isolator, part number 1-3-165, is designed for managing power distribution in 12-, 24-, or 36-volt negative ground DC systems. This unit facilitates automatic charging of up to three independent battery banks from a single alternator source, preventing discharge between batteries. It utilizes heavy-duty diodes within a rustproof anodized aluminum heat sink, engineered for continuous operation up to 50 degrees Celsius. The isolator supports voltage systems up to 48 volts DC and has a maximum amperage input capacity of 165A. It is suitable for applications requiring reliable, isolated charging for multiple batteries, ensuring each bank receives appropriate charge without interaction. Installation is supported by included stainless steel mounting hardware and protective terminal covers. This device is not compatible with self-exciting alternators, requiring an external excitation lead.

Technical Specifications

  • Automatic charging for up to three batteries
  • Heavy-duty construction with rustproof case
  • Compatible with various DC systems up to 48 volts
  • Includes stainless steel mounting hardware
  • Protective terminal covers included

Product Details

  • Manufacturer:
  • Model Number:
  • UPC:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
  • Added:
  • Newmar Power
  • 1-3-165
  • 993281442709
  • New
  • 3.75 lbs
  • 10 X 4 X 5
  • Sep 02, 2026
  • Mar 12, 2025
Product Identifiers: Brand: Newmar Power • Part #: 1-3-165 • UPC: 993281442709 • Category: Heavy-Duty Voltage Converters

Frequently Asked Questions

What type of alternators are compatible with this battery isolator?

This battery isolator is not compatible with self-exciting alternators. An external excitation lead is required for proper operation. Users should verify their alternator configuration with the manufacturer.

How many battery banks can this isolator charge?

The Newmar 165A Heavy-Duty Battery Isolator is designed to automatically charge up to three independent battery banks from one alternator source.

What is the maximum amperage capacity of this isolator?

This isolator has a maximum amperage input capacity of 165A. It is rated for continuous duty up to 50 degrees Celsius.

What is included with the battery isolator for installation?

The product includes stainless steel mounting hardware for secure installation and protective covers to safeguard the terminals.

1-3-165 - Newmar Power Newmar 165A Heavy-Duty Battery Isolator for 3 Banks

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$374.52