Light battery lithium - ion high capacity for the 3M™ Versaflo™ TR - 600 series motor. It loads quickly and has a charge level indicator. It can be rinsed for simple cleaning or you can also immerse yourself temporarily. Refer to the operating instructions for more information. It recharges in less than 4 hours. It is easy to check the battery charge level. When equipped with a high capacity (TR - 632) new battery and filter particles (TR - 6710E) again, the system has a length of 9, 5 and 19 hours. The duration of the system may vary depending on the age of the battery, filter load, the chosen filter and air flow from the user selects. Under equivalent conditions, the battery of high capacity TR - 632 provides greater durations of the system compared to standard TR - 630 battery. TR - 632 battery is loaded in less than 4 hours. Refer to the instructions for use for more information about the...