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Ships within 48 hours · Estimated delivery Jun 16 - Jun 21
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Dual Pro SS4 4 Bank Battery Charger w/3 Bank B.O.S. [SS4/BOS12V3]SS4 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 Sportsman Series Battery Charger 40A 4 10A Banks 12V 48V (PN: SS4). 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
4.1 ★★★★★
Based on 1303 reviews
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Product Reviews
★★★★★ 5
The right tool
Works great with peppercorns as well!
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Reviewed in the United States on June 1, 2026
★★★★★ 4
Gets it done.
At this price point it is a excellent grinder for coffee. It does adjust for different grinds but there is no scale to gauge, just clockwise or counter clockwise. Recommended if you are not sure if you want one.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
It's get grinding! ;]
The coffee bean grinder is ease to use with mostly smooth consistency. It's regularly medium sized with mid noise precision. I suppose you can ideally take this puppy with you camping if you have some extra room in your cargo. All in all, it's consistently done it's job which is grinding them beansss!
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Simple grinder
Great alternative to more expensive grinders, adjustable, could be a bit easier to use but the price is very fair.
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Reviewed in the United States on May 3, 2026
★★★★★ 3
One pot grinder
Unit holds enough grounds to make one pot at a time. I was expecting a bit larger. But it works good enough for the mis-bought beans instead of grounds.
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Reviewed in the United States on December 23, 2025
