Replacement Sony NP-77 Camcorder Battery

Sony NP-77 Battery Maintenance and User Instructions:

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  1. A new Sony NP-77 battery usually maintains a discharged condition with very low capacity. It is highly recommended to fully charge new Sony NP-77 battery packs before using. You can refer to the users' guide of your electronic device for charging instructions.
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  2. A new Sony NP-77 battery pack needs to be circled (fully discharged and recharged) three to five times to reach its optimum performance.
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  3. Rechargeable Camcorder battery will undergo self-discharging when left unused for a long period of time. Thus, it should always be stored in a fully charged state and kept in a cool, dry and clean place.
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  4. To maintain the optimum performance of a Sony NP-77 battery pack, it is highly recommended to circle (fully discharging and recharging) it at least once a month.
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  5. It is normal if a new Sony NP-77 battery gets warm when being charged or used. However, please pay special attention if the Sony NP-77 battery pack becomes excessively hot. This may indicate there is a problem with the charging circuit of the electronic device. Please consult a qualified technician if necessary.
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  6. New Sony NP-77 batteries are hard to be charged. Sometimes, your electronic device may indicate a fully charged condition about 10 to 15 minutes when the new Sony NP-77 battery pack is being charged for the first time. When this happens, remove the Sony NP-77 battery pack and let it cool down for about 10 to 15 minutes then repeat the charging procedure. Sometimes, a new Sony NP-77 battery will suddenly refuse to be charged. If this happens, a suggested solution is trying to remove the battery from the device and insert it again.