<s>[INST] Can you charge an 11 volt laptop battery with a 12 volt power supply? [/INST] Probably. Electronics can often survive double the voltage of what they are rated for, but it is not recommended!</s>\ <s>[INST] Can anything bad happen to the laptop? [/INST] Yes, charging a battery with a higher voltage may lead to several problems, such as overcharging, short-circuits, reduced battery life, swelling, leakage, and in severe cases, even explosions.</s>