The range is large, it will be offered a variety of thinkpad t40 battery
, usually with an input voltage is 100 - 240 volts, so that they can be used anywhere in the country. For those of one country to another are often different outlets, there is the appropriate adapter. But all the users who prefer to spend their free time in the fresh air, with their outdoor activities need not renounce the favorite music. Chargers for iPod, MP3 player, etc. There are now also for solar power and even for the operation by muscle power to the dynamo principle. Everything is possible and everyone can find the right solution for their needs.