For all those who purchase / have purchased a Bosch Professional tool in the period from 01.01.2021 - 31.04.2021 (minimum purchase 180.- CHF), an 18V 4 AH battery can be reordered free of charge on the official Bosch homepage as a promotion at no additional cost. This is for your information, if you have just purchased the product and did not know about the promotion ;-). The purchase receipt must be uploaded and the serial and device number must be stated.