Features:

• A great way to stay in touch with beloved ones!
• Provides good talk and standby time performance to your Nokia E66.
• Stay in touch longer by getting extra battery power with a Lithium Ion Battery.
• Higher energy density than most other types of rechargeable.
• Lithium-ion batteries also have a lower self discharge rate.
• This battery gives you a longer battery life in a lighter package.
• Keep extras on hand at the office and one in a charger so you will always be powered up and ready!
• Comes with extended battery door.
• Prevents your battery covered and supports the battery firmly.

Specifications:

• Extended Battery.
• Type: Lithium Battery.
• Capacity: 2800 mAh, 3.7 V.
• Manufactured by: Mugen.
• Manufacturer Part No: HLI-E66XL.

Note:

• New Lithium Ion battery's full performance is only achieved after 2-3 complete charge and discharge cycles. 
• Charge the initial 24-hour battery charge with the Smartphone turned off for best results.
• This battery is not manufactured by Nokia.