Caka Replacement Battery for Samsung S6 with Free Tools and Instructions 3.85V 2550mAh Li-ion Polymer Original Quality Battery Only fit for Samsung galaxy S6 (Not S6 edge/S6 edge plus). Li-ion Polymer Battery 3.85V 2550mAh 9.82whr. With all the tools necessary and instructions. Easy to replace, most people should be able to do it. 1 Year warranty guarantee.