Lithium battery cost and discharge only 400-600 situations, specially altered items, but 800 situations. The nickel-metal hydride rechargeable battery can achieve a lot more than seven-hundred situations, some excellent good quality items approximately 1200 situations cost and discharge, this kind of a comparison, the nickel-metal hydride batteries stay lengthier than lithium batteries. Moreover, the cost of nickel-metal hydride batteries is way decrease than the lithium batteries. Additionally, strictly speaking, lithium batteries hold the identical memory influence, but its memory influence is very very low, generally negligible.