SKU: 4500524569

Commodore On/Off Battery Disconnect Switch [CM-202S]

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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

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Description

Commodore On/Off Battery Disconnect Switch [CM-202S]On Off Battery Disconnect Switch The Commodore On Off Battery Disconnect Switch provides a reliable, durable, and safe solution for managing your marine or RV electrical systems. With a 300A continuous rating and a 900A cranking rating, this battery switch is designed to handle high power applications, ensuring stable operation for your boat, RV, or off grid systems. Its tin plated copper studs offer superior conductivity and corrosion resistance,

On/Off Battery Disconnect Switch

The Commodore On/Off Battery Disconnect Switch provides a reliable, durable, and safe solution for managing your marine or RV electrical systems. With a 300A continuous rating and a 900A cranking rating, this battery switch is designed to handle high-power applications, ensuring stable operation for your boat, RV, or off-grid systems. Its tin-plated copper studs offer superior conductivity and corrosion resistance, while the IP66-rated isolating cover provides robust protection against water and debris.

This versatile switch can be surface-mounted or flush-mounted, with snap-off side pieces allowing wiring access from any direction. Designed to meet stringent marine safety standards, including ISO 8846 Marine Ignition Protection, this switch is a must-have for any professional or DIY marine electrical system. Built for durability and reliability, the CM-202S ensures your system stays safe and operational in even the harshest conditions.

Features:

  • High-Performance Ratings: Handles 300A continuous, 500A intermittent, and 900A cranking current, ensuring dependable performance for high-power marine or RV systems.
  • Durable Tin-Plated Copper Studs: Features corrosion-resistant copper studs for maximum conductivity and long-lasting performance in harsh environments.
  • Versatile Mounting Options: These can be surface-mounted or flush-mounted with snap-off side plates, offering flexible installation and clean cable management.
  • Water-Resistant and Ignition Protected: Certified to ISO 8846 Marine standards, IP66-rated for protection against water jets, and safe for use in engine compartments.
  • Easy Wire Access: The isolating cover includes three snap-off side pieces, allowing wiring from any direction while protecting rear terminals for enhanced safety.
  • Meets Industry Standards: Complies with ABYC C-7, UL 1107, CSA C22.2 No.4, and other stringent safety regulations, ensuring compatibility and reliability.
  • Compact and Lightweight Design: Weighing only 0.83 lbs (0.38 kg), the compact design saves space without compromising durability or performance.
  • Rugged Marine-Grade Construction: Built to withstand the harshest marine and off-grid environments, ensuring long-lasting protection and reliable operation.

Specifications:

  • Maximum Voltage: 48 VDC
  • Switch Type: Single Circuit On-Off
  • Battery Inputs: 1
  • Color: Grey
  • Cable Clearance for 4/0 AWG Cables: 1.12 in (28.45 mm)
  • Cable Size to Meet Ratings: 4/0 AWG (120mm2)
  • Switch Positions: 2
  • Battery Combine: No
  • Alternator Field Disconnect: No
  • Cranking Rating 30 seconds: 900A
  • Continuous Rating: 300A
  • Intermittent Rating: 500A (5 min)
  • Mounting Holes: Accept #10 Screw
  • Stud Material: Tinned Copper
  • Stud Torque: 120 in-lb (13.56 Nm)
  • Terminal Stud Size: 3/8" - 16 (M10)
  • Weight: 0.65 lbs (0.29 kg)

Specifications:

  • Continuous Amperage: 300
  • Positions: 2
  • Box Dimensions: 3"H x 3"W x 4"L WT: 0.5 lbs
  • UPC: 817683023154

Brochure (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 4500524569

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4.5 ★★★★★
Based on 29 reviews
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Product Reviews
J
Jade L.
Draper, US
★★★★★ 4
Honestly, this is pretty nice!
Color: Black, Color: Black
At first I was a little disappointed in the design of this device because the mat and the charger are two separate pieces; but the magnet that is connecting them together is pretty strong, so I ended up not minding it. The magnet in the charger is pretty strong too, though, so the whole thing tends to lift up when you pick up your phone - this is my first MagSafe charger, so perhaps that is standard with these, I wouldn't know. As you can see in the picture, this isn't your standard mouse pad. It's leather on one side and felt on the other (you can pick which side you want to face up, which is a nice design feature, I suppose). It's smooth and wipes off easily but really collects fingerprints and hairs. It's also a good size. Not too big, not too small. I was a little worried because it's smaller than my older mousepad but I haven't suffered for it. I may even prefer this smaller size if I'm being honest. I'm not sure if I like the feeling of the leather side against my arm/wrist, though. The mouse has no problem reading it but it's just not very soft. I do notoriously dislike change though so maybe that's just a me problem LOL. All in all I'm happy with this and would suggest it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
L
Verified Purchase
Lyn Arnold
Lexington, US
★★★★★ 5
Works great!
Color: Black, Color: Black
Works great! The mat is a good size and the charger works well! So much more convenient than plugging in to charge.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
A
Verified Purchase
Amazon User
Bozeman, US
★★★★★ 5
Love it!
Color: Black, Color: Black
Great accessory! Needed a desk mat and saw this one that includes a wireless charger and it works perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
A
Verified Purchase
A Pollock
Alexandria, US
★★★★★ 5
Worth every penny!
Love this desk mat! Huge, sleek light-gray mat with built-in wireless charging. Fits my full keyboard, mouse, and phone perfectly. Super smooth for the mouse, stays put, and instantly made my desk look way cleaner. Great quality and worth every penny!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2025
K
Kyle Biggs
Charlottesville, US
★★★★★ 5
Still Usefil for a Samsung S24 Ultra User
Color: Black
The Charging Pad: The pad is super flat (nearly the same thickness as the pad) and looks nice next to it or a similar mouse and keyboard pad. It works perfectly for my Samsung S24 Ultra without a case on it, but having a 'magsafe' style case would improve the experience. You do have to take a second to get the alignment right. It uses USB-C instead of cheaping out with a micro, and the status light is helpful. I don't think I own anything that can charge in the headphone area, and in case you're wondering, neither spot will charge a Samsung smartwatch (as expected). I'd nearly recommend this just for the charging pad since it's so unobtrusive on the desk. Just remember you'll need to route that wire out of the top of it somewhere. The mouse pad: The size is probably perfect for a typical keyboard and mouse user. I always have a 3D mouse on the left, and an extra long Coursair keyboard, so I prefer having a gigantic mat for all of that. But there is one feature of this mouse pad that I like more than most. The material doesn't attract every spec of dirt and hair in the universe, and it's easy to wipe off. Because of this, I use the pad under my 3D mouse and keyboard, with a larger full-desk pad underneath (including the mouse area). The felt material on the back keeps this locked to my desk, and unlike a rubberized pad, isn't going to turn into glue after a few years. I did test my mouse on the pad, and it feels fairly good. It's not too smooth, and is a bit easier on your hand, but very serious gamers may take some time to adjust.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026

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