Motorolacell phone batteries are specifically designed for each cell phone brand and model. Motorola Cell phone battery finder tool is available in the Motorola's website, which will guide you in choosing the correct battery and ac adapter for your cell phone.

Here are a few popular choices from Motorola's range of cell phone batteries

Lithium Battery for Motorola ROKR E1
Specifications:
Rechargeable Lithium-Ion battery
Capacity: 860mAH
No memory effect. (Does not need to be fully discharged before recharging)
Slim and lightweight
Approximate price: $ 30.00

Slim Lithium Battery for Motorola A630
Specifications:
Slim and light weight.
Capacity: 550mAh, 3.6V.
Talk Time up to: 90 minutes.
Standby Time up to: 48 hours.

Extended StarTac, Talk about Lithium battery
This lithium battery is compatible with StarTac ST7797, ST7790si, ST7790i, ST7760, ST7762, ST7767W, 7762CDMA, 7760CDMA, ST7860, ST7867, ST7868, ST7868W, ST8767, ST8767W, ST8768, ST8768W, 3000, 6500, Talk about T8097, T8090, T8160, T8167, T8367, and T8197.
Specifications:
Capacity: 900 mAh
Talk time: 145 min
Standby: 65 hours
Approximate price: $70.00

Silver Lithium Battery for Timeport 80xx, 81xx, 8767
Compatible with Timeport P8090, P8097, P8160, P8167, P8197 and P8767 series phones.
Capacity: 700 mAh
Talk time: 125 min
Standby: 50 hours
Approximate price: $60.00

Lithium Ion EP batteries are designed specifically to work with Motorola EP charging systems to provide optimal charge rate and help maximize capacity and battery life.
OEM Slim LI-ION, 780mAh
Compatible with v260, v262, v265, v300, v400, v600, v265, v551, v547, v555, v500, v505, v525
Capacity: 780 mAh
Talk time: 2 hour
Standby: up to 2 days
Approximate price: $ 60.00