The 1100 Series Exacta 2 circuit board is designed on the highly consistent 1.2-volt power curve provided by rechargeable NiMH batteries. Other batteries like Alkaline or Lithium batteries provide 1.5 volts in the power curve. The additional voltage will damage the circuit board.
Please Remember These NiMH Battery Facts:
NiMH rechargeable batteries come in a range of mAh (milli-amp-hour) ratings.
The rating difference is the number of operational hours the battery will supply.
The higher the mAh rating, the longer the batteries last between charges.
High mAh rated batteries take longer to charge than low mAh rated batteries.
Quick chargers shorten useful battery life.
The trickle charger is the best way to recharge the batteries and preserve battery life.