Distinction between lithium batteries and nickel-metal hydride battery

Rechargeable lithium batteries because of its small size compared to the ordinary Ni-Cd / Ni-MH battery (relative), light weight, low self-discharge, no memory effect has the advantage of a wide range of use in many new mobile devices. We usually use a mobile phone, laptop, PDA and other mobile devices lithium battery has been gradually replaced.

Lithium batteries and nickel-cadmium / nickel-metal hydride battery characteristics, has the distinction from the charging mode to maintenance mode. More lively due to the chemical properties of the lithium battery in the course of potentially dangerous, in theory, if the lithium battery overcharge serious or large current charge and discharge may lead to an explosion, burning and other dangerous situations.

The use of lithium batteries is relatively high, over-charge and over-discharge damage to the battery than nickel-cadmium / nickel-metal hydride battery is powerful. Lithium battery on the use of relatively high demand, so in order to protect the lithium battery, lithium batteries are generally equipped with a protection circuit board.

General lithium battery Li-ion shell packaging mark, which means that for the lithium battery. When we get a new lithium batteries do not immediately recommend a 3-5 cycles of charge and discharge cycles, in order to fully activate the new lithium battery, battery life and capacity are good.

For a long time not to use lithium-ion battery, if found in the course of its capacity drops, can also be done 2-6 times charge-discharge cycles, many cases of this approach are valid. Lithium battery are more sensitive to over-charge and over-discharge, it is recommended for non-professional users, charge and discharge lithium battery original equipment and supporting charger, generally safer to do so.

Lithium battery charging requirements and Ni-Cd / Ni-MH battery, rechargeable lithium battery cell voltage of 3.6V (some battery block may be a nominal 3.7V). With full of power, lithium battery voltage will slowly rise, which is to determine the sign of the lithium battery is full, generally recommended by the manufacturer abort the charging voltage of 4.2V (single-cell lithium battery). Rechargeable lithium battery is generally limited pressure limiting law, if a friend wants independent lithium battery is charged, need to pay attention to its charge Ni-Cd / Ni-MH battery constant current charging method can not use ordinary charge Ni-Cd / Ni-MH battery charger.