Lithium ion battery pack is a set of high capacity Li-ion batteries. As we know, lithium-ion rechargeable battery presents many advantages over similar products. Compared with NiMh battery, it is 30% smaller and 50% lighter. In addition, its energy density is one to two times that of nickel–metal hydride battery, and its operating voltage (3.6V) is three times that of NiCd or NiMh battery. No memory effect, no pollution, low self-discharge, and long cycle life are some other advantages.
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