Nokia Battery BL-4D E5, E7 - 00, N8, N97 Li-Ion 1200 mAh (Wireless Phone Accessory)
After receiving a crude imitation called BL4D who could barely two hours, which had all the trouble has returned in the housing N8 and I forwarded, I received this battery appears to be a true ... unless Nokia ... she does not even take into 3 hours