PriorityStart! - battery protector
Available from BLI Intl.
PriorityStart! automatically disconnects battery drains once battery voltage get below 11.7 volts due to two-way radios, computers, lights or any electrical accessories left on. Just operate the headlights switch to automatically reconnect the battery power. Because the PriorityStart! operates only when needed, to prevent a dead battery, it is always on duty providing starting power.