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Solution
Charged battery packs continue to discharge naturally. Therefore, charge them on the day of use, or the day before, to ensure a full charge.
Always keep the battery pack, battery charger, and the camcorder terminals clean. Dirty terminals may cause a poor contact between the battery pack and the camcorder. Wipe the terminals with a soft cloth.
Since storing a charged battery pack for a long time (about 1 year) can shorten its lifecycle or affect performance, we recommend to discharge the battery pack fully and to store it in a dry place at temperatures no higher than 30 deg C (86 deg F). If you do not use the battery pack for long periods, charge and discharge it fully at least once a year. If you have more than one battery pack, perform these precautions at the same time for all battery packs.
We recommend charging the battery pack in temperatures between 10 deg C and 30 deg C (50 deg F and 86 deg F). Outside the temperature range of 0 deg C to 40 deg C (32 deg F to 104 deg F), the charging will not start.
The CHARGE indicator also serves as a rough estimate of the battery charge status.
Continuously on: Battery fully charged.
Flashes approx. twice per second: Battery over 50% charged.
Flashes approx. once per second: Battery less than 50% charged.
Caution
Use of genuine Canon accessories is recommended.
This product is designed to achieve excellent performance when used with genuine Canon accessories. Canon shall not be liable for any damage to this product and/or accidents such as fire, etc., caused by the malfunction of non-genuine Canon accessories (e.g., a leakage and/or explosion of a battery pack). Please note that this warranty does not apply to repairs arising out of the malfunction of non-genuine Canon accessories, although you may request such repairs on a chargeable basis.