20090 - Battery Doctor® Battery Isolator - 12V / 100 AMP
SKU: 32159307380

20090 - Battery Doctor® Battery Isolator - 12V / 100 AMP

Sale price$82.80 Regular price$92.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

20090 - Battery Doctor® Battery Isolator - 12V / 100 AMP100 Amp Battery Isolator Battery Doctor state of the art, fully automatic dual battery controller is suitable for any vehicle with an auxiliary battery. Smaller and lighter than other standard battery isolators, the Battery Doctor Battery Isolator employs electronic switching control technology. Our high performance electronic isolator allows you to charge two batteries from a single alternator, and keeps the starting battery isolated from the second

100 Amp Battery Isolator

 

Battery Doctor® state-of-the-art, fully automatic dual battery controller is suitable for any vehicle with an auxiliary battery. Smaller and lighter than other standard battery isolators, the Battery Doctor® Battery Isolator employs electronic switching control technology. Our high-performance electronic isolator allows you to charge two batteries from a single alternator, and keeps the starting battery isolated from the second battery. Also, with a single push of the override/reset button, you can change the batteries to parallel mode for jump starting.

 

- Priority charging for starting battery.
- Includes mounting bracket that houses the 4"x4"x2" Isolator.
- Over current and surge protected for vehicles with electronic systems.
- Manual override for starting battery.
- Automatically charges auxiliary battery.

 

NOTE: Battery Doctor Isolators are designed for lead acid batteries only!


Specifications


Charging Current: 75 Amp / 100 Amp Peak
Voltage: 12 volt
Charging Type: Parallel
Control: Electric
Approval: EMC
Current Draw: Charging 50 mA/(Standby 30 mA)
Surge Protection: Built In
Mounting: Surface/Fire Wall/Battery Side
Voltage Draw: None

 

Information Downloads

20090 - 20092 Isolators User Manual

20090 - 20092 Isolators Specification Sheet

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: 32159307380

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4.2 ★★★★★
Based on 1502 reviews
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Miss Scarlett
Dallas, US
★★★★★ 5
Sweet dreams with Beckham Hotel pillows!
Size: Queen (Adjustable Foam)
Pillows come overstuffed so you can adjust the amount of foam and support. I took extra foam out for use in other pillows or for comfort adjustment. Outside of pillow is washable and just zips to get on and off. Inside of pillow also zips for easy access to foam. Pillow is great for head and neck positioning for optimal posture, alignment, and unloading of weight on neck and shoulders for muscle relaxation and pain relief for deeper sleep.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
H
Verified Purchase
HappyHeathen
Bozeman, US
★★★★★ 4
Good quality and adjustable comfort
Size: Queen (Adjustable Foam)
Well-constructed and packed with lots of foam pieces. As received, the pillow is firm and well stuffed. I would up removing a good amount of stuffing for a custom fit -- as recommended by the pillow maker. Now, the pillow is extremely comfortable. Due to being able to customize the fill and making this pillow comfortable to my sleeping style, I am happy with this purchase and would recommend its purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
H
Verified Purchase
Hg
Draper, US
★★★★★ 5
Love this pillow it is amazing
Size: Queen (Adjustable Foam)
Excellent pillow very comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
P
Verified Purchase
Patti Ann
Charlottesville, US
★★★★★ 5
I like it
Size: Queen (Adjustable Foam)
I have been trying to find the "perfect" pillow. I am not sure if this would count as the perfect pillow, but it is better than my previous pillow. I have not been waking up with a stiff neck and soreness across my shoulders. It is more firm than I thought it would be. But so far, so good.
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Reviewed in the United States on December 25, 2025
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Verified Purchase
Dora F
Lexington, US
★★★★★ 3
Decent firm pillow
Size: Queen (Adjustable Foam)
I've been using the shredded foam pillow since January. At first it was too packed/firm, so I had to remove some of the stuffing from mine. When fully full, it is a chore to get it in/out of our standard pillow cases. Over time, the pillow has developed a divot from where my head rests the most, so I'll need to fully remove/fluff/reinsert the foam to get it back into shape. Overall, I find the comfort of this pillow just okay. It absorbs your head heat even in the winter, so if you prefer a cool pillow, I don't recommend it. It does seem to be a good quality pillow otherwise. I expect I'll be able to use this one for a few years without it falling apart. It doesn't smell bad either. My husband really likes the pillow, but I've also seen him sleep comfortably on very old pillows that have turned into pancakes... so do with that information what you will.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 25, 2025

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