SKU: 80328838269

ARCO Marine BI-0702-4 Battery Isolator f/10-350A Alternators on 12, 24 or 32V Negative Ground Systems

Sale price$57.59 Regular price$63.99
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Description

ARCO Marine BI-0702-4 Battery Isolator f/10-350A Alternators on 12, 24 or 32V Negative Ground SystemsBI 0702 4 Battery Isolator for 10 350A Alternators on 12, 24 or 32V Negative Ground Systems The Arco Marine BI 0702 4 is an inboard outboard battery isolator that can handle 1 alternator, 2 batteries, and 70A max. Rated for use with 10 to 350 amp alternators on 12, 24, or 32 volt negative ground systems. *Includes regulator sensing terminal Features: 1 alternator, 2 batteries, 70A max Inboard and outboard battery isolators are solid state devices that

BI-0702-4 Battery Isolator for 10-350A Alternators on 12, 24 or 32V Negative Ground Systems

The Arco Marine BI-0702-4 is an inboard/outboard battery isolator that can handle 1 alternator, 2 batteries, and 70A max. Rated for use with 10 to 350-amp alternators on 12, 24, or 32-volt negative ground systems.

*Includes regulator sensing terminal

Features:

  • 1 alternator, 2 batteries, 70A max
  • Inboard and outboard battery isolators are solid-state devices that allow electrical current to flow in one direction ONLY, thus permitting the alternator to be connected directly to two batteries without fear of one higher-charged battery discharging into the lower-charged battery.
  • Both batteries are always being charged automatically, in proportion, to their needs whenever the engine is running.
  • When battery isolators are used in conjunction with selector switches, it is not necessary to change the switch position to provide for charging of both batteries.
  • Isolators provide proportioning of the output or charging current on the alternator to the batteries as required, regardless of switch position.

NOTE: Battery Isolators cannot be used on 12 volt charging systems with 24 volt trolling motors or newer outboard engines with rectifier-regulator charging systems.

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
Manufacturer : ARCO Marine
Manufacturer Part No : BI-0702-4
UPC : 693006003627
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 80328838269

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NightOwl007
Charlottesville, US
★★★★★ 5
Really Helps-Especially for Star Station Tests-Haven’t Failed Since Using in Two Older Vehicles
Size: 1 Count (Pack of 1)
Ever since the new CA State mandate that older cars and trucks have to go to a Star Emissions Station for their smog check I have become very familiar with Guaranteed to Pass. The first year of getting smogged under the new regulations my 1995 truck barely failed. It’s a tougher series of tests and it really sucks to have to pay more for a smog test that is designed to get older cars and trucks off the road that would normally pass a regular smog check. It came at a bad time, having just been laid off and losing my health insurance and income and trying to figure how to come up with money for truck repairs to get my registration renewed so I could be a viable job candidate in the really bad job market of a few years back (and still today, may I add.) But that is a whole other issue that gets my blood boiling. So back to my experience with Guaranteed to Pass. My 1995 Ford Truck barely failed and I mean barely according to the emission numbers so I had the manifold cleaned out, used premium gas for a tank and added Guaranteed to Pass. Having two gas tanks was handy as I could switch the tank to a fresh tank without the remainder of the additive in it for the retest. It passed with flying colors. So for our other older 1993 mini-van and the truck in the few successive years since I always run the premium gas with Guaranteed to Pass in the tanks before the smog check. We’ve had the van and truck tested 3-4 times combined since and they pass every time. So I’m sold on Guaranteed to Pass and will vouch for it.
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Reviewed in the United States on November 14, 2016
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Muy buenos, pero….
Chelsea, US
★★★★★ 5
Excellent quality
Color: Black
Fits perfectly to my bmw x3 2017 2.0L
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Reviewed in the United States on May 16, 2026
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Ernestooo
Natrona Heights, US
★★★★★ 5
No more struggling on n54 oil filter cap!
Color: Black, Color: Black
First of all, this is a lifesaver. Getting the oil filter cap on the bmw N54 is a pain to tighten. I can not stress it enough. However this oil filter cap is most definitely the best purchase i have ever made during the oil change process. Before i bought it i damaged my oil filter cap because i didn't have the correct wrench and had to use big pliers to tighten it. Im glad i made this purchase, it’s affordable, good quality, super easy to use, grips the cap well, looks nice and clean, and works extremely well overall. This makes my life owning a N54 powered BMW much more convenient, especially as a DIY’er. I would 100% recommend this product, 5/5 stars.
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Reviewed in the United States on June 18, 2025
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Jocelyn Renteria
Cuba, US
★★★★★ 5
I recommend for those who know
Color: Black
MYHusband does my 2015 bmw x5 oil change usually it’s an extra charge for this piece to get this done at the mechanics So he orders it through Amazon and gets the oil changed in no time no extra charge. Works great. Fits perfectly. Amazing quality. Worth the money. Easy installation finish the job quick
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Reviewed in the United States on June 5, 2025
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TMJ
Whiting, US
★★★★★ 5
Perfect fit
Color: Black
Perfect
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Reviewed in the United States on January 26, 2026

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