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Ships within 48 hours · Estimated delivery Jun 13 - Jun 18
For Your Every Summer RSVP, with Code: SUMMER15
Description
Dual Pro RS3 3 Bank Battery Charger w/2 Bank B.O.S. [RS3/BOS12V2]RS3 3 Bank Battery Charger with 2 Bank B. O. S. This kit includes Dual Pros B. O. S. Battery Optimization System 12V 2 Bank (PN: BOS12V2) and Dual Pros RealPRO Series Battery Charger 18A 3 6A Banks 12V 36V (PN: RS3). B. O. S. Battery Optimization System 12V 2 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 only
![Dual Pro RS3 3 Bank Battery Charger w/2 Bank B.O.S. [RS3/BOS12V2] Dual Pro RS3 3 Bank Battery Charger w/2 Bank B.O.S. [RS3/BOS12V2]](https://cdn.shopify.com/s/files/1/0611/7297/3739/files/104776XL.jpg?v=1720723820)
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
4.0 ★★★★★
Based on 1183 reviews
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Product Reviews
★★★★★ 5
Excellent Starter
Model: 17825
Starter is an excellent Replacement for the OEM Starter. Easy installation after removing Air Flow inlet. Car is starting easily now and running smoothly after Fusible Link Block was replaced.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
★★★★★ 5
Good quality
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Good quality gear oil, works perfectly.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
For motorcycles
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Great stuff, good price
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Reviewed in the United States on April 25, 2026
★★★★★ 5
The best lower unit gear oil I have used
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
I have been boating my whole life, this is by far the best gear oil. I use this in my Johnson 115 even though this is technically made by Mercury. I seem to get less if any water intrusion into my gearcase with this oil. If there is any, the oil emulsifies the water and continues to protect the gears. I have had better luck with this than Pennzoil marine or others. Highly recommend. It is a blue color and easy to drain and fill.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Great
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Great lube for the boat
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
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