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).
Once the battery is fully charged, pumping more juice into it causes the water in the battery acid to break down into hydrogen and oxygen gas, a process known as electrolysis, which then bubble out of solution and float away into the atmosphere.ndeed, while a properly operating and installed car battery might get warmer from use, it shouldn't get hot enough to boil the acid. The boiling that commonly occurs in lead-acid batteries is due to electrolysis, not heat.