How to use:
1. Put the battery into the flip, attach the connect metal points to both ends on the battery (+)(-) (Most batteries have the ends as (+) and (-). You may need to re-adjust the metal contact pins to line up with battery contacts. Plug into car power outlet. (red) power light wil stay on. Warning: Do not attempt to connect two connecting point to each other. Do not plug into car power outlet before the battery is properly connected.
2. Charging light will blink if the connection is correct, or just press " Switch" key once to change the connection till charging light blinks. Press "test" key to confirm.
3. Please allow it charging for 4-6 hours for full charge. It can charge all cell phone batteries that under 2000mAh. it can react to the batteries that have not been used for a period of time. (Note: Some batteries may not be reacted to.)