High in quality and stable in performance. Â· Short circuit and overload protection. Â· No harmful material used , eco Friendly Product. Â· Guarantee efficiency even without completing the charge -discharge cycle. Â· Ensure construction quality, use and disposal in accordance with international norms.2)Comes in loose packing like comes with your phone.Simply charge one while the other is in use and you'll be able to use your Smartphone all day every day3)These batteries deliver the long-lasting and reliable performance you deserve"