Backup battery case for iphone,iphone 3G

 

Features:
size of outline: 130*60*2.3mm
Port of charging: ipod 30pin(famale)
port of output: ipod 30pin(male)
color:black
weight:125g

 

Technical Specifications:
Capacity of battery ≥2000mAH Voltage: 3.7 V
Voltageofcharging:DC5V;Themaximalchargecurrent:500mA;Charge mode:CC/CV
Outputvoltage:DC5.0V±0.05VThemaximaloutputcurrent:800mA
protective voltage from short circuit: 4.30V±0.05Vprotective voltage from Excessive discharge: 2.4V±0.1V
Protectivevoltagefromshortcircuit:about4A/3.7V;Recovery voltage from Excessive discharge:3.0V±0.1V
Cycleindexofchargeanddischarge:≥300times;Currentconsumption : ≤90uA
Working temperature:0℃～40℃
Keep temperature:-20℃～45℃(three month)
 

How to use:
Press"on"key can enter the charging status, battery case can supply power for iphone, and connect computer to transfer data;
Press "OFF" key enter sleeping status, battery cases top power supply and data transfer Charge up the battery case when connect a USB power adaptor;
there dlight will light when charging;when full of electricity there dlight will be turn off and the green light will be turn on automatically
Low power alarm instructions when there dlight twinkle
Support data exchange with the computer and will stopdata exchange when power off