These people often have tingling and numbness in the feet as well. Many people complain that their feet are overly sensitive to touch (hyperesthesia) and can have varying degrees of burning pain. It can range from mild to disabling. Diabetes and alcohol abuse are by far the most common causes of neuropathy in the legs.
Q: what cause macbook pro battery swelling? Apple battery packs contain a set of 6 lithium Ion (Li-Ion) cells (the metal covered envelopes), connectivity circuitry, and a small logic board. The main cause for battery cell swelling is what is known as thermal runaway. If a cell reaches a certain temperature then a chemical in the cell (usually Cobalt Oxide for Lithium Ion batteries) starts an unintended reaction which is exothermic in nature (i.e. it creates heat).
If you put too much water is in the battery, when the car is started, the acid will spill. The reaction inside the battery when the car is started causes the water level to rise. If there is too much water in the battery, the rising water level from the reaction will cause the water to overflow. This causes valuable acid inside the battery to be lost. The acid is the conduit in which the electricity flows.