First test run laptop at full settings while plugged in with no battery. Second test run laptop for same period turn off laptop and see how much power it takes to charge it. Third test run laptop plugged in at the same power savings settings as on the battery to see how much power that draws.Well not truly scientific it should yield a good result.My bet is that the laptop with limited settings while plugged in would be the best.hird test run laptop plugged in at the same power savings settings as on the battery to see how much power that draws. Well not truly scientific it should yield a good result.My bet is that the laptop with limited settings while plugged in would be the best.
Back spasms can be the result of injuries to the muscles, tendons, and ligaments in the back or it can be related to more serious medical conditions. Heavy lifting is a common cause of back spasms. Any activity that puts excessive strain on the muscles and ligaments in the lower back can cause an injury.
Lower back tightness can cause muscle twitching, pain and reduced range of motion. Photo Credit Dirima/iStock/Getty Images. Lower back muscle tightness is the cause of a muscle spasm. This can be brought on by a strain, overuse or muscle weakness, according to BetterMedicine.com. If your lower back muscles lack strength, and a stronger back muscle pulls on this weak muscle, it can create tightness or pain. While lower back tightness can be managed at home, occasionally medical intervention is needed to treat this common condition. Rest your lower back muscles.