![ARCO Marine BI-1203-3A Battery Isolator - 120A - 1 Alternator, 3 Battery [BI-1203-3A]](https://cdn.shopify.com/s/files/1/0855/3916/0358/files/106601XL.jpg?v=1731005073)
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Description
ARCO Marine BI-1203-3A Battery Isolator - 120A - 1 Alternator, 3 Battery [BI-1203-3A]BI 1203 3A Battery Isolator 120A 1 Alternator, 3 Battery The Arco Marine BI 1203 3A is an inboard outboard battery isolator that can handle 1 alternator, 3 batteries, and 120A max. Rated for use with 10 to 350 amp alternators on 12, 24, or 32 volt negative ground systems. *Includes exciter terminal Features: 1 alternator, 3 batteries, 120A max Inboard and outboard battery isolators are solid state devices that allow electrical current to flow in one
BI-1203-3A Battery Isolator - 120A - 1 Alternator, 3 Battery
The Arco Marine BI-1203-3A is an inboard/outboard battery isolator that can handle 1 alternator, 3 batteries, and 120A max. Rated for use with 10 to 350-amp alternators on 12, 24, or 32-volt negative ground systems.
*Includes exciter terminal
Features:
- 1 alternator, 3 batteries, 120A 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.Quick Guide (pdf)
Shipping Notes
- Free Standard Shipping on $100+ Orders 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
4.5 ★★★★★
Based on 276 reviews
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Product Reviews
★★★★★ 5
Works great, rugged, and worth the money!
Color: Black/Gray
Just purchased my second of this watch as a replacement. The first lasted about four years of abuse before the straps started to crumble. No battery or other issues. It had survived Afghanistan, numerous field exercises, mud, sweat, rain, wind, etc. and was well worth the $35 I spent on it. It is easy to adjust the time and has a handy 2nd time feature if you're between two time zones frequently or jut want to know the time back home. Everything else is what one would expect from the Ironman series. Lightweight, good backlight (indiglo), not obnoxiously large, rugged, good chrono/timers/alarms.
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Reviewed in the United States on August 26, 2014
★★★★★ 4
Good Watch
Color: Black/Gray
I have an old 30 lap Ironman. This one is larger than my previous one and has more features. It took me a little while to fully figure out how the new "occasion" feature works, but I can honestly say that I will probably never use that feature. This is a good watch, but the old one is easier to read at an angle. I did not measure the angle that the other segments become visible enough to interfere with viewing the time, but I do know that it is less than my old one. I have to twist my wrist a little more to view the time than I did with the old one.
My old one is over 10 years old and still keeps excellent time. I replaced the strap and battery a couple times. The plastic part on top of it broke off when I dropped it at the airport about a year ago. Eventually the whole top fell off. I glued a plastic piece on to replace the "start/split" button. The wife decided that my repair was too ugly to wear in public. I still wear the old one around the house just to bother her!
Hopefully this new one will last as long. I may have to get a Velcro strap for this one. The plastic one looks better, but the Velcro type is more comfortable.
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Reviewed in the United States on September 22, 2014
★★★★★ 5
Good watch that can take a beating
Color: Black/Gray
I have owned a Timex IronMan watch for almost 2 decades now and this will only be the 4th one I’ve bought. I wear it every day, and I rarely take it off except when I shower, but that is just because I want to wash my wrist. Between my time in the military, working on cars, swimming, and wildland firefighting I have never had one break on me. I’ve never even had a battery actually die. Every time I’ve replaced a watch is because the backlight eventually got so faint I couldn’t read the time in the dark.
I have had the pin that holds the clasp on come off once, but that was when I had my hand jammed down in an engine trying to remove a part and the watch got caught because I didn’t take it off first.
The only thing I am not crazy about is the size of this watch. Being a creature of habit, I normally get the smaller Ironman, but I thought I’d try something different and I guess it will just take some getting used to. Overall I am very pleased with this watch.
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Reviewed in the United States on August 26, 2022
★★★★★ 5
Good watch
Color: Black/Gray
I've had other Timex watches like this one and they have always been reliable and easy to use. I want a watch that has a large face and can be seen when I'm exercising or in low light. I use the timer feature often and it is great. I'm very pleased with this watch. I know it's a men's watch but I'd love to see more Timex watches for women with large faces, similar features and bolder colors.
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Reviewed in the United States on January 20, 2024
★★★★★ 5
Very nice
Color: Black/Gray
I am a female but like the big face, easy to read. Light weight, very comfortable. Timex has always put out a great product.
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Reviewed in the United States on September 13, 2024
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