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.
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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]
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SKU: 69703779693

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Gracie Miller
Louisville, US
★★★★★ 5
Great find!
Size: Basic Frother, Color: Black
This is frother is compact what does that meanand strong, and easy to keep
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
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Alan Smithee
Fort Morgan, US
★★★★★ 5
Strong and Quiet
Color: Lux Cardinal Red, Size: Rechargeable Z1 Motor Max
Better than I expected. Works in two modes. Makes mixing a breeze.
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Reviewed in the United States on May 23, 2026
K
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Kindle Customer
Charlottesville, US
★★★★★ 5
Powerful!
Color: Lux Galaxy, Size: Rechargeable Z1 Motor Max
This thing is powerful and works great! I was hesitant about some of the negative reviews, but this is worth it so far. I use it every day and haven't charged it in the week that I've had it. Some people complained about turning it off.... It's not that hard. Just hold the button down for a second or two and it shuts off, no fuss. If you tap/press the button you'll cycle through the next speed and then off. I only use the first speed to make my protein shake and matcha. I feel like the high speed would just whip everything to pure foam! I'm hoping this lasts me a long time.
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Reviewed in the United States on May 5, 2026
M
Verified Purchase
Michael Beineke
Bozeman, US
★★★★★ 5
WORTH YOUR MONEY IF YOUR SECOND GUESSING, DONT!
Color: Lux Alpha Black, Size: Rechargeable Z1 Motor Max, Color: Lux Alpha Black, Size: Rechargeable Z1 Motor Max
THIS IS THE BEST! High powered, EXCELLENT FOR PROTEIN DRINKS!!!! The quality is SOLID! Super easy to clean, frothing is a 10, easy to store. Great stability. Battery life seems good too! All around Best Buy! Worth your money.
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Reviewed in the United States on May 24, 2026
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Verified Purchase
T-Rexx
Phoenix, US
★★★★★ 5
Quiet and Effective frother/mixer and Terrific Customer Service
Zulay Kitchen Powerful Milk Frother Wand We ordered two Zulay frother wands and after just several months of continuous usage one of the units stopped working and the other one was sporadically working, where sometimes it would run “full power” and at other times it was barely spinning or turning the beverage. I called Zulay and gave them my Amazon order number. After the Customer Service rep walked me through some minor things to check on the units she was also convinced that the units were probably defective. She had a replacement sent from Zulay along with a mini as a bonus for our troubles! And she had Amazon ship the other replacement unit. Both shipments arrived promptly within days and we have been using them for months now without any major issues. We use the units (the two “standard” wands) almost every day and they get used two to three times a day. They only take ten to twenty seconds to mix up cocoa powder, hot or cold. And the same goes for different protein powder shakes. What I especially like about these units is that there have been many times when I have had to use them off-hours, like between 5:00 and 6:00 AM. They are Whisper quiet so nobody gets disturbed. One generally can’t do this level of quiet stirring/mixing with a kitchen hand blender/mixer or shake blenders. These Zulay mixing units have really come in “handy” for us. We are very Grateful to Amazon for their prompt delivery, and especially to the Customer Service representative at Zulay for her help, and to Zulay for standing behind their products and providing us with terrific and prompt Customer Service! Thank you! Cheers! November 3, 2025
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Reviewed in the United States on November 3, 2025

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