3.7V 900mAh Li-ion Battery For Original SJ4000/SJ4000 WIFI action camera Rechargeable Lithium-Ion Battery Battery Capacity: 900 mAh Compatible with Original SJCAM SJ4000/SJ4000 WIFI/SJ5000/SJ5000WIFI/SJ5000 Plus/M10/M10 WIFI Use As a Spare or Replacement Battery - Fit for SJCAM SJ4000/SJ50000/M10 Series battery It can charge 2 batteries together. Input power can be from Micro USB or Mini USB Pocket friendly and quick charger to save your time Red light when charging, green light full charging Input: 5V/ 2A Output: 4.2V/ 0.8A (x2) ISI PAKET : 2 x 3.7V 900mAh Li-ion Battery Original 1 x USB Dual Charger For SJCAMBattery (Battery is NOT included) 1 x Micro USB Cable