The �Flexible Power System� guarantees compatibility with all new and existing professional power tools and chargers within the same voltage class Part of the �Flexible Power System� 18 volt range from Bosch. Use it immediately without having to worry about whether it is compatible This product carries a full 3 year manufacturers warranty covering both faulty materials and faulty workmanship, it does not cover general wear and tear or damage, batteries, blades, bulbs and other consumables. In the unlikely event of a fault the item returned is subject to fair wear & tear and must not have been used beyond the scope of it's design. Please note that cordless products will normally have a shorter warranty of just 1 Year for the battery and or charger supplied.