SKU: 69703779693

Mastervolt Bi1202-s Bi Series Battery Isolator 120 Amp 2 Battery

Sale price$150.29 Regular price$166.99
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Description

Mastervolt Bi1202-s Bi Series Battery Isolator 120 Amp 2 BatteryMastervolt BI 1202 S Battery Isolator Model: 83012021 Battery isolators that divide your charge current with a minimum energy loss. The Charge Mate for connecting and or disconnecting two batteries. Battery Watch for monitoring the condition of your batteries (also usable as main switch). Onboard systems usually consist of two or more batteries that function independently when powering the 12 or 24 V consumers. These batteries require independent

Mastervolt BI 1202-S Battery Isolator

Model: 83012021
  • Battery isolators that divide your charge current with a minimum energy loss.
  • The Charge Mate for connecting and/or disconnecting two batteries.
  • Battery Watch for monitoring the condition of your batteries (also usable as main switch).

Onboard systems usually consist of two or more batteries that function independently when powering the 12 or 24 V consumers. These batteries require independent charging with reliable battery isolators or battery combiners.

Mastervolt’s BI battery isolators are based on conventional diode technology. The diode voltage drop (ca. 0.6 V) can be compensated for by adapting the output voltage of the connected charger or alternator. Mastervolt Mass battery chargers and Alpha Pro charge regulators are standardly equipped with automatic voltage drop compensation.

The Mastervolt BI battery isolators are compact and fully solid state, preventing wear. The weight varies from 580 to 1300 grams.

Completely corrosion-proof material with aluminium heat sinks. The electronic components are encased in synthetic materials, the BI models have molded diode splitters.

The synthetic end plates feature connection lugs, the solid bolt connections with nuts and locking rings ensure easy installation.

Specifications
General specifications
Number of battery outlets 2
Dimensions, hxwxd 8.1 x 5.5 x 3.1 inch
Weight 2.6
Technical specifications
Max. output battery charger 80 A
Max. output alternator 120 A
Compensation diode Yes
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: 69703779693

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4.8 ★★★★★
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Dixie
Houston, US
★★★★★ 5
Give them a few days
Size: Queen - 18" X 28", Number of Items: 4
When I first saw these pillows I thought "no way". Even after 3 days they still were pretty sad looking. I read the reviews and people said to give them time and I am glad I did. These pillows are so nice and comfortable. I am glad I purchased them and glad I gave them time.
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Reviewed in the United States on May 23, 2026
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Verified Purchase
Jason
Alexandria, US
★★★★★ 5
Softness/ comfy, great to hug and good on my neck.
Size: Queen - 18" X 28", Number of Items: 2
Second set. I’ve had the first set from r about 6 months with no problems. Very comfy and good for my neck! So I, just bought a second set .
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Reviewed in the United States on April 9, 2026
A
Verified Purchase
April Lewis
Charlottesville, US
★★★★★ 4
Comfy affordable pillows
Size: Queen - 18" X 28", Number of Items: 2
Comfortable and affordable pillows. Fluffy and soft. Average size. Good quality but I enjoy my cooling pillows a bit more.
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Reviewed in the United States on April 14, 2026
A
Verified Purchase
Atomica Dagger
Louisville, US
★★★★★ 5
Ordered these pillows in the past. Great quality
Size: Queen - 18" X 28", Number of Items: 2
Luv the support, price and quality. And it does cool. I an sure this is my 2nd time ordering. Crazy but my toy breed dogs luv the pillows over their soft ultra lux beddings
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Reviewed in the United States on May 6, 2026
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Tiny dog Mom
Birmingham, US
★★★★★ 5
Just right
Size: Queen - 18" X 28", Number of Items: 2
Comfy and just right
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Reviewed in the United States on June 1, 2026

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