106You may be able to check the charge state depending upon howthe terminal cover is attached (Fig. C, D).z You are recommended to use it in the camera until it iscompletely discharged and to store it in an indoor locationwith low relative humidity and between the temperatures of0 – 30 °C (32 – 86 °F).Storing a fully charged battery for long periods of time (about oneyear) may shorten its life cycle or affect its performance. If you donot use the battery for long periods of time, charge it fully anddischarge it fully in the camera about once a year beforereturning it to storage.Charging the Batteryz Use the supplied camera station and compact power adapteror Battery Charger CB-2LV/CB-2LVE (sold separately) torecharge Battery Pack NB-4L.z Since this is a lithium-ion battery, you need not completelydischarge it before recharging.It can be recharged at any point.z It takes approximately 90 minutes to fully charge the batteryfrom a fully discharged state (based on Canon’s testingstandards).• Charging it within a temperature range of 5 – 40 °C (41 – 104°F) is recommended.• Charge times may vary according to the ambient temperatureand the battery's charge state.z You are advised to charge the battery on the day of use, orone day before, to ensure a full charge.Even charged batteries continue to discharge naturally.z If the performance of the battery diminishes substantiallyeven when it is fully charged, its life has been exceeded andit should be replaced.Fig. C Fig. DCharged BatteryAttach it so theis visibleSpent BatteryAttach it theopposite way toFig. C.