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Similar to a cell phone, Twisp batteries require a deep cycle charge before first use 8 hours or overnight. After which 1-3 hours will completely charge the battery (depending on model, please see accompanying instruction booklet).imilar to a cell phone, Twisp batteries require a deep cycle charge before first use 8 hours or overnight. After which 1-3 hours will completely charge the battery (depending on model, please see accompanying instruction booklet).
The cheapest way to charge a nickel metal hydride battery is to charge at C/10 or below (10% of the rated capacity per hour). So a 100 mAH battery would be charged at 10 mA for 15 hours. This method does not require an end-of-charge sensor and ensures a full charge.