Advantages of Ni-MH battery

　　1. High energy density.

　　With the same volume, the capacity is relatively high. Taking the common No. 5 battery as an example, the nominal capacity of NiMH battery can reach 2900mAh (milliampere hour), while the NiCd battery only has 1100mAh (milliampere hour).

　　2. The internal impedance is low, but not as low as the nickel cadmium battery.

　　3. Long cycle life

　　The cycle life is long, and it can be recycled for more than 500 times under correct use conditions.

　　4. No memory effect

　　Less obvious memory effect, even many brands of NiMH batteries have claimed no memory effect.

　　5. Robust and durable

　　NiMH battery can withstand overcharging and overcharging conditions, thus simplifying the battery management requirements.

　　6. Flat discharge characteristics (but drop rapidly at the end of the cycle)

　　The old NiMH battery has a high self-discharge rate, and the storage self-discharge rate is 30-35% at full charge at room temperature, but the new NiMH battery has a relatively low self-discharge rate.

　　7. Wide operating temperature range

　　Generally speaking, normal temperature operation will not affect the charging and discharging performance of NiMH battery.

　　8. Large output current

　　NiMH battery has higher output current than carbon zinc battery or alkaline battery, and is relatively more suitable for high power consumption products. Some special models of power type even have higher output current than ordinary NiCd battery.

　　9. Repairable

　　The difference between NiMH battery and many batteries is that it is a repairable battery.

　　10. Environmental protection

　　NiMH battery is improved from NiCdbattery. It replaces cadmium (Cd) with metal that can absorb hydrogen (rare earth alloy or tini alloy). It is recyclable and belongs to environmental protection battery.

　　Characteristics of low temperature lithium polymer battery

　　1. High discharge performance at low temperature, the minimum discharge temperature is - 50 ℃ and 0.2C, and the efficiency is more than 60%; At - 40 ℃, discharge at 0.2C, discharge capacity up to 80%;

　　2. Excellent low temperature cycling performance, charge and discharge at 0.5C in the environment of - 30 ℃, and the capacity remains above 85% after 300 cycles;

　　3. The size is flexible, and can be customized in size and shape according to customer requirements;

　　4. High safety performance, UL/CE/UN certification;

　　5. It has the capacity of mass production and good battery consistency;

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