Never recharge your cell phone if the energy level has not gone below 20 per cent, an eminent researcher has advised.
People have the tendency to put their phone on the recharge mode even when the energy level is 60 or 70 per cent which actually harmed the device and reduced its life, Siddhartha Das, Professor of Metallurgical and Materials Engineering at the Indian Institute of Technology (IIT), Kharagpur, said.
“The battery’s lifetime decreases if you recharge it every now and then without checking whether it has come down 20 per cent,” Prof Das said while delivering a keynote speech at the inauguration of the National Conference on ‘Trends in Minerals and Materials Technology’ held at the SOA University here.
He also referred to a few incidents of cell phone blast.
Prof Amit Banerjee, Vice-Chancellor of SOA, presided over the programme.
Prof Damodar Acharya, eminent academician, said 20 different rare minerals were used in mobile phones the availability of which was extremely limited. For example, the cell phones use lithium ion battery but lithium was in short supply while the consumption was very high.
Even the power backup system used widely at present to recharge mobile phones is a ‘dangerous’ device and the European Union is thinking of banning its use, he said.