Original Samsung Battery EB-F1A2GBU 1650 mA Li-Ion 3.7, V Samsung i9100 Galaxy S IIi, 9100 Galaxy S2 (Accessory)
I confirm, this battery is a counterfeit. Not delivered in the Samsung packaging. Made in China indicated on the product, while the original Samsung should be noted Made in Corea. Then after 6 months of use, memory effect, fast unloading, etc ... to