The victim, Bondi management consultant Gareth Clear, 36, is now at the hospital with third-degree burns. The overall failure rate of lithium-ion batteries is extremely low, at around 1 in 10 million. An average of 600 incidents per year occurs. However, just think what dangerous could be such bike / iPhone accidents in similar circumstances for kids ! What that means as a strong conclusion ? As a preventive precaution, it’s not recommended that mobile phones are stored in pockets when people’s activities mean there is a chance of a significant physical impact. If possible, all the time such devices should be placed in a protected area.