Save A Battery 2087-S 12 Volt 6' SMART Battery Terminal Cable with LED Voltage Meter Easily monitor the batteries voltage and quickly tell when it's time to recharge Plugs onto virtually all chargers, maintainers, trickle chargers, and solar panels Gold plated connectors guarantee reliability even in harsh environments Bright yellow wire can easily be seen Works with all 12 volt lead acid, gel, sprial gel, dry cell batteries