Features:

• Short circuit protection (LED goes out, charging stops)
• Wrong connection protection (LED turns red, charging stops)
• Battery is full (LED turns red, charging stops)
• Charging time varies with the size of batteries.
• 12V 5-7AH takes about 6 hours;
• 12V 9AH takes about 10 hours;
• 12V 15-17AH takes about 13-15 hours