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![Dual Pro RS2 2 Bank Battery Charger w/2 Bank B.O.S. [RS2/BOS12V2]](https://cdn.shopify.com/s/files/1/0405/8454/4408/files/104775XL.jpg?v=1720730075)
![Dual Pro PS4 4 Bank Battery Charger w/3 Bank B.O.S. [PS4/BOS12V3]](https://cdn.shopify.com/s/files/1/0405/8454/4408/files/104769XL.jpg?v=1720730031)
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Shipping Estimate
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Ships within 48 hours · Estimated delivery Jun 24 - Jun 29
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Dual Pro PS4 4 Bank Battery Charger w/3 Bank B.O.S. [PS4/BOS12V3]PS4 4 Bank Battery Charger with 3 Bank B. O. S. This kit includes Dual Pros B. O. S. Battery Optimization System 12V 3 Bank (PN: BOS12V3) and Dual Pros Professional Series Battery Charger 60A 4 15A Banks 12V 48V (PN: PS4). 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
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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Best in 7 days
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Best in 7 days
4.4 ★★★★★
Based on 1435 reviews
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Product Reviews
★★★★★ 5
Best synthetic oil BMW
Excellent synthetic oil BMW 328I
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
★★★★★ 5
Last long
Love it ! Since I have a BMW this oil it’s good for it .
The Price is good . Last long . No engine noise
Or oil burning. Even the color looks good after 3 months.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
Actually works on BMW!
I purchased this after the shorter black fluted tool I bought last year failed me. This thing is way better constructed, fits perfect , and actually works to turn it after you can’t turn it by hand any further. Was able to get torqued down to 25nm no problem finally with ease!
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Reviewed in the United States on November 12, 2024
★★★★★ 5
Works great
Works great
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Reviewed in the United States on May 26, 2025
★★★★★ 5
Great product
Fits the whole filter cover all the way...and the metal is great quality
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Reviewed in the United States on May 26, 2025
