This auction includes a combination BM2 Bluetooth 12V Battery Monitor with a 12V Battery Tender Cable. Just attach the black spade connector to the 12V battery negative post and the red spade connector to the 12V battery positive post. You may need to purchase a 3 foot SAE quick connect cable to reach the outside of the hood area. Download the BM2 12V battery monitor app from the Apple App Store or Google Play Store.
