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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).
â¦ how long 4 aaa and also aa nimh charge for 1800 mah etc. plus charge rate ma calculate for choosing an appropriate charger, having one 300 milliampere transformer to use. Battery type 1800 mAh NiMH size AA rechargeable battery, takes 7.2 hours to be fully recharged with using 300 mA charger.attery type: 2300 mAh NiMH size AA rechargeable battery. require 9.2 hour(s) to be fully recharged with 300 mA output current charger. Fraction: 9 1/5 hour(s) to be fully recharged with 300mA charger. Precise ma current to charging time for rechargeable batteries calculator.