Sony DEV-50 Digital Recording Binoculars Handbook - Page 81

Table of Contents operating conditions between this product and an AC Adaptor/charger (sold separately).  The "InfoLITHIUM" battery pack calculates the power consumption according to the operating conditions of this product, and displays the remaining battery time in minutes. To charge the battery pack  Be sure to charge the battery pack before you start using this product.  We recommend charging the battery pack in an ambient temperature of from 10 C to 30 C (50 °F to 86 °F) until the CHG (charge) lamp turns off. If you charge the battery pack outside of this temperature range, you may not be able to charge it efficiently.  The  mark that indicates low battery flashes even if there are still 20 minutes of battery time remaining, depending on the operating conditions or ambient temperature. About storage of the battery pack  If the battery pack is not used for a long time, fully charge the battery pack and use it up on this product once a year to maintain proper function. To store the battery pack, remove it from this product and put it in a dry, cool place.  To discharge the battery pack on this product completely, select (MENU)  [Setup]  [ General Settings]  [Power Save]  [Off], and leave this product in recording standby until the power goes off (p. 63). Menu Lists To use the battery pack effectively  Battery pack performance decreases when the ambient temperature is 10 C (50 °F) or below, and the length of time you can use the battery pack becomes shorter. In that case, do one of the following to use the battery pack for a longer time.  Put the battery pack in a pocket to warm it up, and install it on this product right before you start taking shots.  Use a large capacity battery pack (NP-FV100).  Have spare battery packs ready for 2 or 3 times the expected recording time, and make trial recordings before making the actual recording.  Do not expose the battery pack to water. The battery pack is not water resistant. About the remaining battery time indicator  When the power goes off even though the remaining battery time indicator indicates that the battery pack has enough power to operate, charge the battery pack fully again. Remaining battery time will be indicated correctly. Note, however, that the battery indication will not be restored if it is used in high temperatures for a long time, or if left in a fully charged state, or when the battery pack is frequently used. Use the remaining battery time indication as a rough guide only. About battery life  Battery capacity decreases over time and through repeated use. If decreased usage time between charges becomes significant, it is probably time to replace it with a new one.  Each battery's life is governed by storage, operating and environmental conditions. About handling of this product On use and care  Do not use or store this product and accessories in the following locations:  Anywhere extremely hot, cold or humid. Never leave them exposed to temperatures above 60 C (140 °F), such as under direct sunlight, near heaters or in a car parked in the sun. They may malfunction or become deformed.  Near strong magnetic fields or mechanical vibration. This product may malfunction.  Near strong radio waves or radiation. This product may not be able to record properly.  Near AM receivers and video equipment. Noise may occur.  On a sandy beach or anywhere dusty. If sand or dust gets in this product, it may result in a malfunction. Sometimes this malfunction cannot be repaired. Index GB 81