However radiculopathy is not the cause of back pain, some of the major causes of acute and chronic low back pain (LBP) are associated with it. Spondylolisthesis is most common in the lower lumbar spine region. Causes are minor overuse trauma, particularly repetitive hyperextension of the lumbar spine.
Deep cycle batteries are designed to be discharged down as much as 80% time after time, and have much thicker plates. The major difference between a true deep cycle battery and others is that the plates are SOLID Lead plates-not sponge.
Lead acid batteries are fickle things. If you subject a deep cycle battery to 80% DOD on a regular basis you will get roughly half the life out of your battery than if you were to cycle it to 50% DOD. While this doesn't mean that you can't go down to 80% DOD you should generally try to design your battery banks to allow for cycling at around 50%.