When Battery is full ,LED turns Green, charging stops

Descriptions

Material: ABS

Shell Color: Black
Alligator Clips Color: Red & Black
Plug: US
Input: AC 110-240 V, 50-60HZ
Output: DC 12V 1A
LED indicator: Green=Battery full. Red =charging.
Dimension: 85 x 48 x 30mm
Input Wire length: 60 cm
Output Wire length: 100 cm
Features:
1. Short circuit protection (LED goes out, charging stops)
2. Wrong connection protection (LED turns red, charging stops)
3. Battery is full (LED turns red, charging stops)
4. 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
Package:
2 x 12V Battery Charger Maintainers with Alligator Clips （USA Standard)