Details: The Power Products PM4487LIPIC is an alternative replacement for the Motorola PMNN4487 battery. Backed by a two year warranty, this 4900mAh 7.4V battery fits the Motorola APX6000, APX6000XE, APX7000, APX7000XE, APX8000, and APX8000XE two way radios. Powered by PolyMax HPC Lithium Polymer (LiPo) cells, it boasts longer runtimes compared to other battery options. An estimated 21 hours of usage per charge, depending on amount of radio traffic. Weighs in at 0.54lbs, which is less than NiMH and batteries with similar capacity. Greater cycle life compared to Lithium Ion (Li-ion), 500+ vs 300. A self-discharge rate of less than 5% per month, about one third that of NiMH batteries. Can be charged using original (OEM), Endura, and Logic chargers that are designed for Li-ion batteries.