The Accu-Chek Spirit insulin pump is designed for a single AA alkaline battery with a minimum capacity of 2500 mAh. Do not use lithium, carbon zinc or nickel cadmium (NiCd) batteries. You can also use rechargeable NiMH batteries with a minimum capacity of 1500 mAh. If you use rechargeable batteries, always use a battery charger recommended by the battery manufacturer.
Pump battery life is about four weeks using alkaline batteries and one week using rechargeable batteries.
The Accu-Chek Spirit insulin pump can withstand brief accidental water contact such as rain, water splashes or accidental immersion. Before taking a bath or going into a whirlpool, shower or swimming pool, you should disconnect and remove your pump.