Remax Kooker RPP‎-59 is High capacity portable battery charger power bank with 20000mAh can be charged for smart phones‎.‎it comes with built‎-in 20000mAh high quality rechargeable polymer Li‎-ion battery‎.‎This power bank have battery indicator display the accurate percentage of power‎.‎Also it has Dual USB Outputs DC 5V / 2.1A output charge for Mobile Phones‎,‎Tablet‎,‎Camera‎,‎Speaker etc‎.‎Designed with ultra high conversion efficiency ‎(‎> 80%‎)‎ for best performance‎.‎Designed with safety technology with Over current protection‎,‎Short circuit protection‎,‎Overheat protection‎,‎Over discharge protection‎,‎Over voltage protectionCompatible with most smart phones‎.‎Technical specification‎:‎ 1‎.‎Output Voltage‎:‎ DC 5V2‎.‎Output Current‎:‎ 5.0V / 2100mAh‎(‎max‎)‎3‎.‎Input Voltage/Current‎:‎ 5.0V / 2000mAh4‎.‎Battery Capacity‎:‎ 3.7V/20000mAh5‎.‎Battery type‎:‎Polymer lithium battery6‎.‎Full charging time‎(‎AC power‎)‎‎:‎ 10‎-12 hours‎.‎7‎.‎Applicable product‎:‎ intelligent mobile‎,‎MP3‎,‎MP4‎,‎digital cameras etc‎.‎8‎.‎Input interface‎:‎ Micro USB9‎.‎Output interface‎:‎ dual usb output10‎.‎Functional characteristics‎:‎ portable and convenient‎,‎high efficiency of power conversion‎,‎long cycle life‎,‎economic efficiency11‎.‎Weight‎:‎ 366g  Safety 1‎.‎ Over current protectionWhen the current increasing in an exception‎,‎ power bank immediately Start voltage buffer function‎,‎ ensure the voltage in a steady state at any time‎.‎‎,‎ Avoid cause your charging device any damage‎.‎2‎.‎ Short circuit protectionWhen there is a short circuit occur in external device‎,‎ power bank start Protection function‎,‎ shut down the supply and avoid short circuit damage‎.‎3‎.‎ Overheat protectionWhen the power bank work long in high temperature environments ‎(‎Exceed 60 degrees‎)‎‎,‎ Power bank will not be dangerous due to the high temperatures‎.‎4‎.‎ Over discharge protectionWhen power bank discharge reached the critical point‎,‎ the circuit automatic start Protection function and stop discharge‎.‎5‎.‎ Overcharge protectionLong time charge for mobile power supply or use power bank charge for the phone‎.‎ When reach saturation point‎,‎ system automatically shut down‎,‎ avoiding the overload problems‎.‎6‎.‎ Over voltage protectionLong time charge for mobile power supply or use power bank charge for the phone‎,‎ When reach saturation point‎,‎ in order to prevent over‎-voltage‎,‎ the system automatically turns off‎.‎ Conversion Rate 1‎.‎ Usually there is internal resistance in all mobile‎.‎ and power bank will lost power when you charge mobile because this internal resistance‎.‎     we called it is Conversion Rate2‎.‎ About 10 to 12 hours charge can get the power bank full of power in normal times3‎.‎ charging time depending on charger‎.‎the more‎,‎the faster4‎.‎ the output power is different for every mobile‎.‎ because mobile internal resistance is different‎.‎5‎.‎ All the power bank has Conversion Rate‎,‎as well as your phone‎,‎Charge will happens twice energy conversion‎!‎