A Grade Highquality battery. Equipped an integrated microchip that prevents overcharging and lengthens battery life The battery should be charged for about 46 hours before being used Great replacement for your old, damaged or worn one Definitely real capacity, not the fake label capacity as other sellers'. If the battery capacity is not as much as the label states after the test, you can return it to us at our cost for a full refund. If the product show symptoms of operational failure, are defective or are broken (a.k.a. Battery Expert reserves the rights to reject any claims made after 30 days for DOA cases. If the product is assessed to be Doa, buyers will receive a full or partial refund, or a replacement product or parts. Such returned products will become our property and the replacement will be the buyer's property. Battery Expert is not liable for items that have been misused, mishandled or incorrectly installed. Buyers should read the instruction and advise given by manufacturers and suppliers before use.