The battery pack will run out quickly if you use the playback, fast-forward, and fast-rewind frequently.Turn off the camera every time you do not shoot or playback on the camera. Battery pack is wearingout when the shooting is in standby.We recommend having spare battery packs handy for two times or three times the expected shootingtime, and making trial shots before taking the actual shots.You may not be able to turn on the camera or the battery pack may not be effectively charged if theterminal section of the battery pack is dirty. In this case, wipe any dust with a soft cloth lightly to cleanthe battery pack.Do not expose the battery pack to water. The battery pack is not water-resistant.[83] How to use Others Battery packAbout the remaining battery chargeIf the battery pack runs out so fast although the remaining charge indicator is high, fully charge thebattery pack again. Remaining charge indicator will be displayed correctly. Note that it may not bedisplayed correctly in the following situations:Using the camera for a long time in high temperatureLeaving the camera with fully charged battery packUsing a heavily used battery pack[84] How to use Others Battery packHow to store the battery packTo maintain the battery pack’s function, fully charge the battery pack and then fully discharge it on thecamera at least once a year while storing. Remove the the battery pack from the camera and store itin a cool, dry place.To prevent staining the terminal, short-circuiting, etc., be sure to use a plastic bag to keep away frommetal materials when carrying or storing.[85] How to use Others Battery packOn battery pack lifeThe battery pack life is limited. Battery capacity decreases over time and through repeated use. Ifdecreased usage time between charges becomes significant, it is probably time to replace it with anew one.The battery pack life varies according to how a battery pack is used.