... pleasure of multimedia enjoyment. 2, built more staying power rechargeable lithium-ion battery Advanced lithium-ion battery charging time ... V. 10, the charge current: <300mA. 11, lithium-ion rechargeable battery. 12, LED display, low battery display. Charge display. ... to disassemble the machine without permission, the replacement of rechargeable batteries, or the resulting loss has nothing to do with ...