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Fox ECS 4.03kWh HV Battery (Slave)
Fox ECS 4.03kWh HV Battery (Slave)
Fox ECS 4.03kWh HV Battery (Slave)
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Fox ECS 4.03kWh HV Battery (Slave)

Marsoni M251S
Sale price$610.00
Pay 4 payments of $152.50 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Fox ECS 4.03kWh HV Battery (Slave)Fox ECS High Voltage Battery (Slave) ECS4100 ECS is a high performance, scalable battery storage system. The modular design allows for maximum flexibility, making it suitable for a broad range of storage applications. Additional batteries can be installed in series, allowing for a maximum storage capacity of 28. 21 kWh. Installation is easy, with a plug and play solution that can save valuable time for installers. 4. 03kWh Capacity Scalable to 28.
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  • Fast: 2-3 business days
  • Express: 1-2 business days

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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]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 2158 reviews
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C
Verified Purchase
Chris
Chelsea, US
★★★★★ 5
EPAuto stuff works and fits
Love their auto filters, tools and tire air compressers. EPAuto stuff works great and always fit!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
A
Verified Purchase
Amazon Customer
Houston, US
★★★★★ 5
Great price, easy install
OEM fit and very easy to install. No issues at all — everything worked exactly as expected.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2025
A
Verified Purchase
Ashley
Boise, US
★★★★★ 5
Great filter
Always as expected, purchased multiple times!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
L
Verified Purchase
Lori K
Birmingham, US
★★★★★ 5
Good fit
Good fit
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Reviewed in the United States on April 12, 2026
S
Verified Purchase
SanJoseCA
West Palm Beach, US
★★★★★ 5
Looks exactly like the original car filter, but for a lot less than from the car dealership
Looks as good as the OEM filter and at a better price than at the car dealership. Hopefully it should do the filtering job.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026

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