Description:<br />This is a DIY 18650 Mobile Power Bank. You can put 1 to 2 18650 batteries into the slot. Therefore， you can determine the capatcity of the mobile power bank.<br /><br />Main Features:<br />?Simply drop in 1 - 2 x 18650 batteries to make your own power bank (batteries not included)<br />?Input voltage / current: DC 5V / 0.5 - 2.1A<br />?Output voltage / current: DC 5V / 1A， DC 5V / 2A<br />?Reverse polarity protection<br />?Flat top or button top 18650 batteries both can be used in this power bank<br />?With switch button<br />?With battery capacity indicator and output indicator<br />?LCD shows the capacity<br />?Intelligent power manage IC， overcharge protection， short circuit protection<br /><br />    Specifications<br />General<br />  Type: Portable Mobile Powers                                                  <br />                        Model: E4                                                  <br />                        Compatibility  : LG， Tablet， Nokia， Galaxy Note 2 N7100， Samsung Galaxy S5， HTC， iPhone 5/5S， iPhone 6， iPhone 4/4S， Tablet， Nokia， Nokia Lumia 920/820， Samsung Galaxy S5， HTC， iPad， Blackberry， iPhone 4/4S， iPhone 5C， iPhone 6， Nokia Lumia 920/820， HTC 8X， iPad， Blackberry， Sony Ericsson， iPhone 5C， iPod， Samsung Galaxy S4 i9500/i9505， iPhone 6 Plus， HTC 8X， Google Nexus 4/5， iPod， Sony Ericsson， Samsung Galaxy S4 i9500/i9505， MP3， Samsung， Galaxy Note 3 N9000， Apple， Google Nexus 4/5， Samsung Galaxy S3 i9300， MP3， Samsung， Galaxy Note 3 N9000， Apple， MP4， Motorola， Galaxy Note 2 N7100， LG， Samsung Galaxy S3 i9300， iPhone 6 Plus， iPhone 5/5S， MP4， Motorola                                                  <br />                        Capacity (mAh): Replaceable 18650 Mobile Power Bank                                                  <br />                        Special Functions: Replaceable 18650 Battery Mobile Power Box， LCD Digital Display， Dual USB Outputs                                                  <br />                        Connection Type: Two USB Output Interface， Two USB Output Interface， Micro USB                                                  <br />                        Battery type: Li-ion Battery                                                  <br />                        Color: White                                                 <br />Specification<br />  Input: DC 5V / 0.5 - 2.1A                                                  <br />                        Output: DC 5V / 1A， 5V / 2A                                                 <br />Dimension and Weight<br />  Product weight: 0.071 kg                                                  <br />                        Package weight: 0.125 kg                                                  <br />                        Product size (L x W x H) : 13 x 4.8 x 2.6 cm / 5.1 x 1.9 x 1 inches                                                  <br />                        Package size (L x W x H): 15.6 x 8.5 x 3.6 cm                                                 <br />Package Contents<br />  Package Contents : 1 x 18650 Mobile Power Bank， 1 x USB Cable                                                 <br /><br /><br /><br />                                            <br /><br />                                                <br />