Does this mean when looking to purchase a new cordless power tool, buying only one that is powered by Lithium ion batteries?
• Lithium power tools are the lastest generation and the batteries do have such characteristics as staying charged and lighter weight with higher voltage. However, in general they are expensive and the battery/charger systems involves special circuitry to prevent overcharging/over-discharging as either of these can result in fire or explosion. Gradually lithium will reduce in price and be more widely available. It is quite likely that these batteries will have a limited life of 2-3 years.