150 Amper*hour is the battery charge capacity. With power of 25 Watt = 25 A*V at V = 12 V you will supply 25/12 Coulomb each second (Amper*s). So the charge time is equal to 150/(25/12) = 72 hours.share | cite | improve this answer.50 Amper*hour is the battery charge capacity. With power of 25 Watt = 25 A*V at V = 12 V you will supply 25/12 Coulomb each second (Amper*s). So the charge time is equal to 150/(25/12) = 72 hours. share | cite | improve this answer.
A long-arm quilting machine. 1  The serger, or overlock, machine is another type of specialty sewing machine. 2  It sews with multiple needles and multiple threads to create stitches better suited to stretchy fabrics, such as those used for t-shirts and swimsuits. 3  It is probably not what you want for general purpose sewing.
The following pages were developed as a guide to help you determine what kind of industrial sewing machine is necessary for a specific kind of work. Let us know if this information has helped you. There are three basic types of sewing machine configurations relating to the area under the arm of the machine where the sewing work is done. Flat bed sewing machines are the most common, because the majority of sewing garments and other products involves sewing together two or more pieces of flat goods. Below is an example of a common flat bed sewing machine, the Mitsubishi LU2-400. Flat bed sewing machine: Mitsubishi LU2-400.