Fox ECS 4.03kWh HV Battery (Master)

Marsoni

M251S

$658.66

Get it in 3 business days with 1 day shipping. Friday, May 29

Fox ECS 4.03kWh HV Battery (Master)Part No: FE HV ECM 4100 Storage Systems Li ion Battery Pack Fox Energy Cube High Voltage Battery (Master) ECM4100 4. 03kWh Capacity Scalable to 28. 21kWh 90% Depth of Discharge Wide Temperature Tolerence Easy Installation CAN RS485 Communication High Voltage This product must be installed by a qualified electrician technician. All installations must adhere to local wiring regulations and standards. Powerland will not be held liable for any product

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Looks as advertised, works well, and pretty water resistant thus far. Surprisingly water resistant. Unfortunately the band the watch comes with immediately felt a little cheap and flimsy to me. About a week after my purchase the band did inevitably break. The watch itself is still fantastic and everything works proper, like it should. Funny thing, I had left a review shortly after my purchase, talking about my dissatisfaction with how cheap the band felt. I have purchased many Olevs watches in the past and have had zero issues with any of them. I guess the company that makes or sells these watches read my review and asked about my dissatisfaction. I informed them of what happened, and they offered me a full refund. Originally I posted my review at three stars, just for that watch. All the other Olevs watches I have purchased are great. The customer service is so fantastic, this has never happened to me before so I am elated. They earned the five-star rating, and I would highly recommend checking out their collection of watches if you are a collector like me. I am overly confident if you do purchase one of these watches, and have any issue whatsoever with it, if you contact the customer service department they will be incredibly helpful as they have with me, and based off of my recent experience, I am sure they will do whatever it takes to make things right with you. Well done, very surprising customer service department. Very refreshing these days. Based on customer satisfaction alone they get five stars from me!

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Reviewed in the United States on August 26, 2025

Verified Purchase

Trevor C.

Lexington, US

★★★★★ 4

Nice watch, cheap band sizing tool.

Color: 2856 All Black Face/Black Band

Nice watch, but watch band link removal tool is made of plastic and broke when trying to size the watch band.

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Reviewed in the United States on May 19, 2026

Verified Purchase

Maureen G

Chelsea, US

★★★★★ 5

Looks Awesome

Color: 2856 Silver Black Face/Silver Band

Bought this for our son for a fun watch and he loves it ! Looks amazing ! It did take a little bit of time to make it fit his wrist , but after that it was great

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Reviewed in the United States on May 4, 2026