--- product_id: 22660559 title: "MS4000 Automotive Memory Saver With Built In Charger , Black" brand: "ezred" price: "$187.12" currency: USD in_stock: true category: "Ezred" url: https://www.desertcart.us/products/22660559-ms4000-automotive-memory-saver-with-built-in-charger-black store_origin: US region: United States of America --- # 12V, 4.5Ah sealed lead acid battery Direct OBDII port plug-in 4 amp circuit breaker protection MS4000 Automotive Memory Saver With Built In Charger , Black **Brand:** ezred **Price:** $187.12 **Availability:** ✅ In Stock ## Summary > 🔧 Never lose a setting, always stay powered—drive smart, save smarter! ## Quick Answers - **What is this?** MS4000 Automotive Memory Saver With Built In Charger , Black by ezred - **How much does it cost?** $187.12 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/22660559-ms4000-automotive-memory-saver-with-built-in-charger-black) ## Best For - ezred enthusiasts ## Why This Product - Trusted ezred brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built-In Battery Charger:** Integrated 12V, 4.5Ah sealed lead acid battery charges while connected, ensuring uninterrupted power to critical systems. - • **Multi-System Memory Saver:** Protects anti-theft radios, clocks, keyless entry, alarms, GPS, TPMS, and more—because every detail matters. - • **Robust Circuit Protection:** Equipped with a 4 amp circuit breaker to safeguard your vehicle’s sensitive electronics from power surges. - • **Seamless Memory Preservation:** Keeps your vehicle’s drive-ability codes & settings intact during battery swaps—never lose your custom configurations again. - • **Universal OBDII Compatibility:** Plugs directly into any vehicle’s OBDII port for effortless, tool-free installation—perfect for pros and DIYers alike. ## Overview The EZRED MS4000 is a professional-grade automotive memory saver with a built-in 12V, 4.5Ah sealed lead acid battery charger. It connects directly to your vehicle’s OBDII port, preserving critical drive-ability codes and electronic settings during battery changes. Featuring a 4 amp circuit breaker for protection, it supports a wide range of vehicle systems including anti-theft radios, keyless entry, and GPS memory, making it an essential tool for both professional mechanics and savvy DIY enthusiasts. ## Description The E-Z Red MS4000 is now equipped with a built in charger. A 12 volt, 4.5 amp hour sealed lead acid battery is included inside the unit. The direct wired OBDII connector plugs directly into the vehicles OBDII port. The green LED indicates connection to circuit. The Amber LED indicates when the internal battery is 11.6 volts or lower and requires changing soon. The MS4000 saves all drive-ability codes and settings when disconnecting/changing a vehicle's starter battery. It also protects settings and codes for anti-theft radios, clocks, keyless entry systems, and much more. ## Features - Memory saver & charger: The MS4000 saves all drive-ability codes & settings when disconnecting/changing a vehicle's starter battery. It also protects settings & codes for anti-theft radios, clocks, keyless entry systems & much more. - Charges batteries: A 12 volt, 4.5 amp hour sealed lead acid battery is included inside the unit. The direct wired OBDII connector plugs directly into the vehicles OBDII port. - Protects & saves: This unit is protected by a 4 amp circuit breaker & can be used for anti-theft radios, clocks, keyless entry systems, alarms, cell phone settings, GPS Memory, TPMS & other memory-related functions. - Innovation at its finest: We make high quality hand tools & accessories, tool organizers, ratchet sets, LED flashlights & work lights. We specialize in tools for battery, heating & electrical work, for both the professional tradesperson and home DIY'er! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0021UP5KW | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #45,196 in Automotive ( See Top 100 in Automotive ) #251 in Code Readers & Scan Tools | | Brand Name | EZRED | | Customer Reviews | 4.5 4.5 out of 5 stars (473) | | Global Trade Identification Number | 00008965000141 | | Included Components | Manufactuered Brand Product | | Item Type Name | Tools | | Item Weight | 1.9 Pounds | | Manufacturer | E-Z Red | | Manufacturer Part Number | MS4000 | | Manufacturer Warranty Description | Limited One Year Warranty | | Model Number | MS4000 | | Power Source | Hand Powered | | UPC | 008965000141 | | Unit Count | 1.0 Count | ## Product Details - **Automotive Fit Type:** Universal Fit - **Brand:** EZRED - **Power Source:** Hand Powered - **UPC:** 008965000141 - **Unit Count:** 1.0 Count ## Images ![MS4000 Automotive Memory Saver With Built In Charger , Black - Image 1](https://m.media-amazon.com/images/I/714hkKOaeDL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Has anyone used it before for imported cars? If so, does it work?** A: Yes, it works great on my 2006 Scion XA and 2017 Camry, after changing battery all radio stations and timing on the car all never changed. Works great. **Q: How do you recharge the 12 volt, 45 amp/hour sealed lead acid battery inside the ms 4000? i didn't see an a/c adapter for charging.** A: Per the Instructions that come with the MS4000; It has a Smart aka automatic/float charger inside the Case. This mean's that you can plug the unit into an Electrical Outlet, The Charger will charge the MS4000 Batry and when the Batry inside the MS4000 Case get's fully charged then the Charger will Automatically Stop Chargeing, and will monitor the Batry's State of Charge and will start chargeing again If or When the Batry's State of charge drop's below a certain Level. IMO this is a Professional Grade memory Saver and a Tool that every owner needs that doe's their Own Preventative Maintenance, cause there are other time's that the Battery needs to be disconnected (Not Just for Replaceing Battery) when doing other repair's or Service. Don't take unnesasary chances and have a High Charge for Computer Module damage. **Q: Is there clamps for the battery cables. Older models had cable clamps** A: There are no clamps, it plugs into the diagnostic port in the cab of the vehicle. And has a standard out let plug for charging the unit. **Q: Does this product come with the charger?** A: Yes, it comes with a charger. ## Frequently Bought Together - EZRED MS4000 Automotive Memory Saver With Built In Charger , Black - Schumacher Electric Battery Terminal Cleaning Brush, BAF-BI, for Automotive, Marine, and Power Sport Batteries, with One-Year Limited Warranty, Chrome - OEMTOOLS 25316 Battery Carrier, Grab, Lift, and Carry Top Post or Side Post Batteries, Rubber Pads Securely Grip Batteries, Heavy Duty Batteries Carrier --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/22660559-ms4000-automotive-memory-saver-with-built-in-charger-black](https://www.desertcart.us/products/22660559-ms4000-automotive-memory-saver-with-built-in-charger-black) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-07*