Blithe&reg; 1800mah Li-ion Battery for Samsung Galaxy S2 GT-i9100, I9100G [18-month Warranty] Real 1800 mAh for long lasting power.Warranty:18-Months Long Life: Over 500 recycle charging.Capacity retention above 90% after 400 cycles. High Safety: FCC , CE , ROHS , MSDS certificates. Compatible with Samsung Galaxy S2 GT-i9100/i9100G Package includes: 1 Blithe battery 1 User manual 1 Retail box