Abstract: Battery assembly comprising a plurality of battery blocks, where each battery block comprises a first metal plate fixedly connected to the positive terminals of a plurality of rechargeable battery cell members and a second metal plate fixedly connected to the negative terminals of the cell members, further comprising a printed circuit board provided with an electronic circuit configured to monitor, control and/or balance said battery blocks, where the metal plates of subsequent battery blocks are fixedly connected to each other such that the battery blocks are electrically configured in series, and where the PCB is mechanically fixed to mounting flanges of the metal plates with mounting means that also provides an electric connection between the metal plates and the PCB. The advantage of the invention is that a self-supporting battery assembly that can be produced in a cost-effective way is provided.

Abstract: A method for calibration of a system for determining the amount of fuel in a fuel tank includes a first step of initiating a start of the calibration, a second step which includes detection of a level of a fuel-level sensor and detection of a point in time at which the level was detected, and further steps corresponding to a periodical repetition of the second step. The calibration is carried out during addition of fuel to the fuel tank at a generally constant flow velocity. An arrangement for such a calibration is also provided.