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RUIXU Battery | Server Rack 3U Battery | RX-LFP48100 | UL1973 Certified | UL9540

Marsoni M251S
Sale price$529.50
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Get it in 3 business days with 1 day shipping. Friday, May 29
RUIXU Battery | Server Rack 3U Battery | RX-LFP48100 | UL1973 Certified | UL9540RUIXU 51. 2V100A 5120Wh 19" Rack Mounted 3U Module RX LFP48100 Heated batteries in back order until middle of May. Non heated in stock. RUiXU battery packs are rack type residential lithium batteries, designed entirely for residential ESS applications, with our battery technology ,you can easily combine it with a mainstream inverter in different scenarios to save your electrical bill & back up your power during grid outage or unavailable. Why Choose
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
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Average Guy
Fort Morgan, US
★★★★★ 3
KIND OF BAGGY
Size: Large, Color: A-multicolored-4 Pack
I guess I'm not built quite like the guy in the photo. I found these to be a little baggy. I buy briefs because I don't want baggy. They were, however, comfortable enough. I liked the wider waist band and the elastic was fine. I wouldn't buy them again though.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 27, 2024
A
Verified Purchase
Arshad
West Palm Beach, US
★★★★★ 5
Decent Quality
Size: Medium, Color: Black, Navy Blue, Brown, Heather Grey-4 Pack
as per website. decent quality
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Reviewed in the United States on May 31, 2026
D
Verified Purchase
Daryl Johnston
Chelsea, US
★★★★★ 5
Comfortable and secure
Size: Small, Color: Black Grey
Nice quality non fly men’s underwear. Pouch holds your gear firmly. Ordered small (30” waist) but ended up ordering same item in medium for more comfort. Also went with the cotton version.
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Reviewed in the United States on November 7, 2025
M
Verified Purchase
Morstead
Alexandria, US
★★★★★ 5
Comfortable & well-fitting, but some differences in stiffness between batches
Size: Medium, Color: Black/Deep Blue/Deep Grey/Heather Grey
I've basically been exclusively buying these since I've discovered them. Super-comfortable and maintain their shape for a long time, but I've noticed from buying it multiple times that sometimes the pouch area has stiffer texture and more support than other times (when it's loose & stretchy like the rest of it). I wish I could specify receiving the more-supported ones because they tend to produce less....how to say, knocking the boys around.
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Reviewed in the United States on March 22, 2026
E
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EclecticJay
Los Angeles, US
★★★★★ 5
Comfort and softness
Size: 3X-Large, Color: Black/Navy/Dark Grey/Red
True to size; they are comfortable, good quality, and really soft.
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Reviewed in the United States on January 3, 2026

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