Newmar 2-3-70 Battery Isolator [2-3-70]
SKU: 85923044098

Newmar 2-3-70 Battery Isolator [2-3-70]

Sale price$133.65 Regular price$148.50
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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9

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Description

Newmar 2-3-70 Battery Isolator [2-3-70]2 3 70 Battery Isolator This heavy duty isolator allows charging multiple batteries automatically from one or two alternators and prevents the discharge or dumping of one battery into another. Each battery is charged according to its need without overcharging and is rated for 12 , 24 , or 36 volt negative ground DC systems. Features: Conservatively rated diodes and a rustproof anodized aluminum heat sink case. Heavy duty construction Rated for systems

2-3-70 Battery Isolator

This heavy-duty isolator allows charging multiple batteries automatically from one or two alternators and prevents the discharge or ‘dumping” of one battery into another. Each battery is charged according to its need without overcharging and is rated for 12-, 24-, or 36-volt negative ground DC systems. 

Features:

  • Conservatively rated diodes and a rustproof anodized aluminum heat sink case.
  • Heavy-duty construction
  • Rated for systems up to 48 volts DC, negative ground
  • Rust-proof anodized aluminum case
  • Stainless steel mounting hardware is provided
  • Protective covers are provided for terminals

Specifications:

  • Alternator Sources: 2
  • Battery Bank: 3    
  • Max. Amperage Input Capacity: 70
  • Stud Terminal Size: 6mm    
  • Dimensions (L x W x H): 6.5 x 4.5 x 3.1 inches
  • Weight: 4 lbs.
  • Operating Temperature: -40 to +80 degrees
  • Duty Cycle: Continuous rating to 50 degrees C Derate linearly to 70% @ 80 degrees C.
  • Temp. Rise: 5 degrees C at full rated current (mount vertically for optimum cooling)
  • Voltage Drop: 0.7V @ 50% load, 0.9V @ full load

*Note: These battery isolators are not compatible with self-exciting alternators. The alternator must have an external excitation lead. Please consult the manufacturer of your alternator if you are unsure of your configuration

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.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 85923044098

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Emily
Lexington, US
★★★★★ 5
Great hat for hot weather! Good for women with a small head!
Size: One Size, Color: Aurora Plum Purple/Powder Plum Purple/3, Size: One Size, Color: Aurora Plum Purple/Powder Plum Purple/3
This hat is super light weight, breathable and comfortable. It feels high quality and it looks cute. I wore it on a super humid day on a hike and my head felt a lot less sweaty than it does wearing a regular baseball cap. The color is pretty! I also have a problem with most unisex baseball hats being far too large and deep for my head. They usually come down over my ears, but this one fits me really well and doesn’t push my ears down. Definitely would consider buying it in another color.
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Reviewed in the United States on July 10, 2025
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Verified Purchase
PHILIP I.
Chelsea, US
★★★★★ 5
The hat is just as described. thin, cool and fits me perfectly.
Size: One Size, Color: White/Silver Metallic/3
The fit and color are really good. I was looking for a hat to cover my new short hair cut. Not too heavy so i can wear it in the sun.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
M
Verified Purchase
Michele Tret
Houston, US
★★★★★ 5
Great Hat
Size: One Size, Color: Black/White/3
I absolutely love the adidas Women's Superlite Hat! It's incredibly lightweight and breathable, making it perfect for workouts, runs, or just casual outings. The relaxed fit feels comfortable even after hours of wear, and the adjustable back strap ensures a secure, custom fit every time. What really stands out is the moisture-wicking fabric — it keeps sweat off my face and dries quickly, which is a must during hot weather or intense workouts. Plus, the classic adidas logo adds a sporty, stylish touch without being too flashy. I’ve washed it multiple times and it still holds its shape and color. Whether I'm at the gym, running errands, or walking the dog, this cap is my go-to. Highly recommend for anyone looking for a functional yet fashionable sports cap!
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Reviewed in the United States on July 23, 2025
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Verified Purchase
Little Hunter
Draper, US
★★★★★ 5
My Favorite Summer Hat
Size: One Size, Color: Black/Silver Reflective/2
Nice lightweight hat for the summer. Shades you’re eyes & cools you’re head. Nice fit, looks great.
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Reviewed in the United States on May 16, 2026
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Verified Purchase
Chyna B
Battle Creek, US
★★★★★ 4
Very lightweight running cap.
Size: One Size, Color: Black/White/3
Okay cap. Very lightweight. Not crazy about the fit.
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Reviewed in the United States on April 9, 2026

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