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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9
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Description
Dual Pro SS4 Auto 4 Bank Battery Charger w/3 Bank B.O.S. [SS4AUTO/BOS12V3]SS4 Auto 4 Bank Battery Charger with 3 Bank B. O. S. This kit combines Dual Pros B. O. S. Battery Optimization System 12V 3 Bank (PN: BOS12V3) and Dual Pros SS4 Auto 40A 4 Bank Lithium AGM Battery Charger (PN: SS4AUTO). B. O. S. (Battery Optimization System) 12V 3 Bank B. O. S. actively shuttles energy between batteries to keep the pack balanced, increasing battery strength and longevity. Batteries in a pack will become out of balance and the pack is
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
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4.0 ★★★★★
Based on 2465 reviews
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Product Reviews
★★★★★ 5
Nice and a good price.
Fit our F250 Diesel well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 10, 2025
★★★★★ 5
Great fitment
Nice fitment
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Reviewed in the United States on December 15, 2025
★★★★★ 2
F250 cabin filter change
Too thick. Air flow decreased significantly which is terrible in the AZ heat!
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Reviewed in the United States on July 27, 2025
★★★★★ 5
Clean filtered air
Installed easy. works great. Clean filtered air.
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Reviewed in the United States on July 21, 2025
★★★★★ 5
Great price
Both filters fit and worked and had a great price.
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Reviewed in the United States on March 15, 2026
