{"id":11748,"date":"2026-09-30T10:39:46","date_gmt":"2026-09-30T10:39:46","guid":{"rendered":"https:\/\/shop.autoboss.com\/?post_type=product&p=11748"},"modified":"2026-10-09T08:20:30","modified_gmt":"2026-10-09T08:20:30","slug":"mrcartool-b80-automotive-memory-saver-12v-obd-interface","status":"publish","type":"product","link":"https:\/\/autoboss.com\/es\/product\/mrcartool-b80-automotive-memory-saver-12v-obd-interface\/","title":{"rendered":"MRCARTOOL B80 12V OBD2 Memory Saver with Voltage Display"},"content":{"rendered":"
\n
\n

Keep Vehicle Memory Settings Through a Battery Replacement<\/h3>\n

The B80 feeds power from a 12 V backup battery into the OBD2 port while the vehicle battery is out, so radio presets, seat positions, PCM and comfort settings stay intact however long the job takes. A charged 12 V backup battery is required.<\/p>\n

    \n
  • 16-Pin OBD2 Connection<\/li>\n
  • Voltage and Current Display<\/li>\n
  • Built-In 3 A Fuse<\/li>\n
  • Reverse Polarity Protection<\/li>\n<\/ul>\n<\/header>\n
    \n

    Key Features<\/h4>\n
      \n
    1. \n
      Retains Key Settings<\/h5>\n

      Keeps radio presets, seat positions, error codes, door, sunroof, window, air conditioning and infotainment settings during battery replacement or service.<\/p>\n<\/li>\n

    2. \n
      Works With Ignition On or Off<\/h5>\n

      The standard OBD2 connection supplies stable power regardless of ignition status, even through long service sessions.<\/p>\n<\/li>\n

    3. \n
      Backup Battery Check<\/h5>\n

      The built-in meter shows whether the backup battery has enough voltage before you start.<\/p>\n<\/li>\n

    4. \n
      Reverse Connection Guard<\/h5>\n

      If the clamps are connected the wrong way round, the display stays dark and no power is passed.<\/p>\n<\/li>\n

    5. \n
      Fault Alarm<\/h5>\n

      Abnormal battery voltage or current triggers an alarm and the screen flashes.<\/p>\n<\/li>\n<\/ol>\n<\/section>\n

      \n

      Highlights<\/h4>\n
      \"B80
      \n
      Voltage and Current Readout<\/h5>\n

      The digital display shows voltage and current changes while the cable is in use.<\/p>\n<\/figcaption><\/figure>\n

      \"B80
      \n
      Circuit Protection<\/h5>\n

      The 3 A fuse helps prevent damage to the tool and the vehicle ECU if a circuit fails.<\/p>\n<\/figcaption><\/figure>\n

      \"Red
      \n
      Insulated Clamps<\/h5>\n

      Fully enclosed insulated clamp bodies with copper teeth and thickened springs.<\/p>\n<\/figcaption><\/figure>\n<\/section>\n

      \n

      More Specifications<\/h4>\n
      \n\n\n\n\n\n\n
      Operating voltage range<\/th>\n10\u201314 V<\/td>\n<\/tr>\n
      Operating current<\/th>\n< 7 A<\/td>\n<\/tr>\n
      Operating temperature<\/th>\n-20 to 60 \u00b0C<\/td>\n<\/tr>\n
      Cable lengths<\/th>\nClamp lead 0.5 m; OBD lead 0.4 m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
      \n

      What’s in the Box<\/h4>\n
        \n
      • B80 OBD emergency power cable<\/li>\n
      • User manual<\/li>\n<\/ul>\n
        \"B80
        B80 main unit and user manual.<\/figcaption><\/figure>\n<\/section>\n
        \n

        How to Use<\/h4>\n
          \n
        1. Prepare a backup battery<\/b>Have a sufficiently charged 12 V backup battery ready.<\/span><\/li>\n
        2. Connect<\/b>Switch off the vehicle, plug the OBD2 end into the vehicle port and attach the clamps to the backup battery.<\/span><\/li>\n
        3. Check the indicators<\/b>After a successful connection both LEDs light green and the display shows voltage.<\/span><\/li>\n
        4. Replace the battery<\/b>Remove the old vehicle battery and fit the new one; the settings are kept when you start the car.<\/span><\/li>\n<\/ol>\n<\/section>\n
          \n

          Good to Know<\/h4>\n
          \n
          \n
          Caution<\/span><\/h5>\n
            \n
          • While the battery is out, do not open the doors, turn on lights, start the vehicle, switch on any electronic device or touch the connections; doing so may damage the vehicle’s OBD connector.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"
              \n
            • Retains key vehicle settings when replacing batteries <\/span><\/li>\n
            • Compatible with all 12V vehicles <\/span><\/li>\n
            • Built-in 3 Amp fuse for reliable overload protection <\/span><\/li>\n
            • Uses standard 16-pin OBD2 connection independent of vehicle ignition status <\/span><\/li>\n
            • Equipped with volt-ampere maeter, current clamp anti-reverse connection protection<\/span><\/li>\n<\/ul>","protected":false},"featured_media":12416,"comment_status":"open","ping_status":"closed","template":"","meta":{"_gspb_post_css":""},"product_brand":[126],"product_cat":[64],"product_tag":[],"class_list":["post-11748","product","type-product","status-publish","has-post-thumbnail","product_brand-mrcartool","product_cat-car-battery-charger","first","instock","sale","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/autoboss.com\/es\/wp-json\/wp\/v2\/product\/11748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/autoboss.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/autoboss.com\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/autoboss.com\/es\/wp-json\/wp\/v2\/comments?post=11748"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autoboss.com\/es\/wp-json\/wp\/v2\/media\/12416"}],"wp:attachment":[{"href":"https:\/\/autoboss.com\/es\/wp-json\/wp\/v2\/media?parent=11748"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/autoboss.com\/es\/wp-json\/wp\/v2\/product_brand?post=11748"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/autoboss.com\/es\/wp-json\/wp\/v2\/product_cat?post=11748"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/autoboss.com\/es\/wp-json\/wp\/v2\/product_tag?post=11748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}