1.   Actual battery life will vary quite a lot according to what the machine is used for.

2.   After the three hour charge-up, the pack is automatically switched over to normal charging, to preserve the battery life.

3.   Digital technology makes it easier to prevent signal theft and it means better voice quality and longer battery life.

4.   However, current consumption must be kept sufficiently low to provide an acceptably long battery life.

5.   I found that the power-management features could more than double the battery life.

6.   Let down by a short battery life, about three hours.

7.   More money buys more battery life.

8.   My old phone had a longer battery life.

9.   Output must be fully compatible with all the major word processors and battery life should be measured in days rather than hours.

10.   Smaller might mean a battery life.