When replacing your laptop battery, you should always choose a battery with the same voltage as your original. There are however a couple of exceptions to this rule;
1. 7.2V batteries and 7.4V batteries are interchangeable, they are in common use.
2. 10.8V batteries and 11.1V batteries are interchangeable, they are in common use.
3. 14.8V batteries and 14.8V batteries are interchangeable, they are in common use.
4. 10.8V(=11.1V) batteries and 14.4V(14.8V) batteries are not interchangeable, they are not compatible.
If in doubt, please feel free to give us a call or drop us an email. Using a battery with an incorrect voltage could damaged your laptop and the battery and will void your warranty.