# COZYEHOO Top Post Knife Blade Master Switch 12V 24V | Heavy Duty Brass Battery Disconnect **Brand:** COZYEHOO **SKU:** zna9558 **ASIN:** B08YWNBVFM **Canonical URL:** https://crowcrowcrow.com/p/post-knife-blade-master-switch-12v-24v-battery-disconnect-cut-off-shut-auto-car-rv-marine/zna9558 **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹2,385 **Discount:** 29% **Customer rating:** 4.10/5 from 123 ratings ## Description COZYEHOO Top Post Knife Blade Master Switch (12V/24V) is a heavy-duty brass unit for cars, RVs, and boats. It isolates the battery to prevent drain and theft. Easy to install, it offers corrosion resistance and good conductivity. 7-9 days. ## Highlights - Prevents Battery Drain & Theft — Isolate your battery completely when not in use, stopping parasitic drain and deterring unauthorized use. Essential for long-term storage of cars, RVs, and boats. - Heavy-Duty Brass Construction — Made from high-quality brass for superior corrosion resistance and conductivity. Ensures durability and reliable performance in demanding conditions. - Versatile 12V/24V Compatibility — Works with 6V, 12V, and 24V systems, making it suitable for a wide range of vehicles including cars, trucks, RVs, and marine applications. - Easy Vertical/Horizontal Mount — Adjustable design allows for flexible installation in either a vertical or horizontal orientation to fit your specific battery terminal setup. ## Key features - 【COMPATIABLE】This knife-blade battery disconnect switch is suitable for TOP POST TERMINAL, battery POSITIVE post only. Maximum Current: 750A, Rated Current: 250A. 6v 12v 24v car truck, bus, RV, Boat, trailer battery - 【TOP LEVEL & HEAVY DUTY 】This top post battery disconnect switch is made of brass material, corrosion resistance, conductive performance is good, durably made for safety use - 【EASY TO INSTALL】This battery doctor knife switch for top post batteries can be adjusted into a vertical knife switch or a horizontal knife switch through the bottom of the screw, easy to install & simple to use. Switch the knife, then power will cut - 【SAVE ELECTRYCITY】This knife blade master switch is used for the battery to isolate and secure the electrical system, eliminate any power draw from the battery when vehicle or boat is not in use, stop unwanted battery drain and prevent theft or unauthorized use.Widely used for car, truck, boat or RV battery, also other electrical equipment's battery - BUY WITH CONFIDENCE: We are so confident you'll think we have the satisfied battery disconnect switch on the market. If you have any problem about our product, please feel free to give us a message and we will do anything for you to make the thing right. We go out of our way to make sure every customer is happy and satisfied with our product and service. ## Why choose this product **Secure Your Vehicle's Power System** — The COZYEHOO Top Post Knife Blade Master Switch offers peace of mind by providing a robust way to disconnect your vehicle's battery. Its heavy-duty brass construction ensures longevity and reliable performance, resisting corrosion common in automotive environments. Rated for up to 250A continuous and 750A peak current across 6V, 12V, and 24V systems, it's built to handle demanding loads. The easy-to-install design, adaptable for vertical or horizontal mounting, allows for quick isolation of the battery, preventing drain during storage and deterring theft. This switch is an essential upgrade for any car, truck, RV, or boat owner seeking enhanced electrical system security and battery maintenance. **Ideal For Storage & Security** — This switch is perfect for owners who store vehicles or boats for extended periods, preventing the common issue of dead batteries. It's also a valuable security feature, making it impossible to start the engine without flipping the blade. While effective for most 12V/24V vehicles, users with side post terminals will need a different model. For those with top post terminals, this switch provides a straightforward solution to maintain battery health and secure their vehicle's electrical system. ## How to use 1. Identify the positive top post terminal on your vehicle's battery. Ensure the vehicle is turned off and all electrical accessories are disengaged before proceeding. — Locate Battery Terminal 2. Securely attach the COZYEHOO switch to the positive battery post. Ensure a firm connection for optimal conductivity. The switch can be oriented vertically or horizontally. — Attach Switch 3. Connect your battery cables to the appropriate terminals on the switch. To disconnect power, simply flip the knife blade. To restore power, flip the blade back. — Connect Cables & Operate ## Product details | Field | Value | |---|---| | Contact Material | Brass | | Actuator Type | Hinge Lever | | Operating Voltage | 6V, 12V, 24V | | Rated Current | 250A | | Peak Current | 750A | | Number of Positions | 2 (On/Off) | | Circuit Type | 1-way | | Control Type | Manual | | Protection Rating | IP65 | | Compatible Devices | Cars, Trucks, RVs, Boats, Trailers | | Cost per unit | ₹2,385 per unit — 1 unit at ₹2,385 | | Brand | COZYEHOO | | Style | Top Post (Horizontal & Vertical) | | Material | Brass | | Mounting Type | Surface Mount | | Terminal Type | Screw | | Color | Copper | | Dimensions (L x W x H) | 7.39 cm x 7.39 cm x 10.21 cm (3.1 in x 3.9 in x 2.3 in) | | Item Package Weight | 0.259 kg (0.57 lb) | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Frequently asked questions ### Is this COZYEHOO battery disconnect switch compatible with Indian vehicles? Yes, this 12V/24V rated master disconnect switch is compatible with Indian vehicles. It operates on the electrical load, not mains power. Ensure the continuous amperage rating (250A) matches your vehicle's needs and that it fits your top post battery terminals. ### How do I install the COZYEHOO Top Post Knife Blade Master Switch? Installation is straightforward. This switch is designed for top post battery terminals. You can adjust it for vertical or horizontal mounting. Simply attach it to the positive battery post, switch the knife blade to disconnect power, and secure it. Always ensure the battery is disconnected before installation. ### What is the main benefit of using a battery disconnect switch? The primary benefit is preventing battery drain during storage, extending battery life. It also acts as a security measure by preventing unauthorized use and can help protect the electrical system from surges. This switch allows you to easily cut power when the vehicle is not in use. ### What is the difference between top post and side post battery terminals? Top post terminals are located on the very top of the battery, usually with posts sticking straight up. Side post terminals are typically on the sides of the battery, often with bolts or screws. This switch is specifically designed for top post terminals. ### How to buy an original COZYEHOO battery disconnect switch in India? Purchase directly from crowcrowcrow.com. We import authentic products from authorized US retailers, ensuring they are factory-sealed and shipped per order. All customs duties and GST are included in the listed price, and your order is tracked via ExpressBox for delivery within 7-9 days. ## Compliance No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging. ## Images 1. https://images.crowcrowcrow.com/B08YWNBVFM-0.webp 2. https://images.crowcrowcrow.com/B08YWNBVFM-3.webp 3. https://images.crowcrowcrow.com/B08YWNBVFM-6.webp 4. https://images.crowcrowcrow.com/B08YWNBVFM-9.webp 5. https://images.crowcrowcrow.com/B08YWNBVFM-12.webp 6. https://images.crowcrowcrow.com/B08YWNBVFM-15.webp --- Source: https://crowcrowcrow.com/p/post-knife-blade-master-switch-12v-24v-battery-disconnect-cut-off-shut-auto-car-rv-marine/zna9558 Returns: 14 days, free pickup, full refund on genuine issues. Shipping: Free across India, 7-9 days. Prices are all-inclusive (duties + GST).