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Ships within 48 hours · Estimated delivery Jun 13 - Jun 18
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Description
ProMariner ProIsoCharge Battery Isolator 120Amp 1-Alt 2-Bat - 12V [23121]ProIsoCharge Series ModelProIsoCharge120 12 Part No. 23121 System Volts DC 12 Max DC Amps 120 Amp Alternator Input1 Battery Outputs 2 Size 5. 35"(l) x 5. 875"(w) x 3. 125"(h) Weight2 lbs Significantly Smarter ProIsoCharge delivers digitally controlled alternator output distribution while protecting the health of engine start batteries. An industry changing design that provides intelligent and zero voltage loss isolation, charging of up to 3 other
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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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.
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4.1 ★★★★★
Based on 1641 reviews
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Product Reviews
★★★★★ 1
Disappointed
Size: Single
It didn’t work as expected
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 1
Fake
Size: 2-Pack
No good just a lie
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
★★★★★ 5
Works great
Number of Items: 4, Style: SILZKAR7B11
Exactly what it is supposed to be ! Good service
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
Perfect
Number of Items: 4, Style: SILZKAR7B11
Great Quality. Worked Perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2025
★★★★★ 5
Muy buenas
Number of Items: 4, Style: SILZKAR7B11
Excelente
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Reviewed in the United States on August 29, 2025
