5.避免满荷电池频繁充电以延长电池寿命 Avoid charging fully charged batteries frequently. it will shorten life Overcharge may shorten the life of the batteries5. 避免满荷电池频繁充电以延长电池寿命 Avoid charging fully charged batteries frequently, it will shorten life. ↓ Overcharge may shorten the life of the batteries