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Review title: Short battery life. Suction power declines as batteries go low.
Product review: I used the battery pack that comes with my newly bought pump in style in a long drive from Pittsburgh to Philadelphia. It worked fine while we were heading to Philadelphia. However, when we were going back to Pittsburgh, the pump became slower and started losing suction power. I pumped 4 times in total on the road, and it's only 2-hour pumping time. The suction power went so low that I have to use manual pump to ease the pain. I wish I had bought more batteries. My husband bought this vehicle lighter adapterNeneSupply 9V Auto Adapter/Vehicle Lighter adapter for 9V Medela Pump-in-Style Breastpump. It worked great. I just plug in the adapter in the vehicle lighter, and start pumping. I can not tell the difference between using this adapter and plugging the pump into the wall. The power cord is very long, and I can pump at the back passenger seat to take care of my son. I am glad that don't need to gamble on batteries anymore!
