Bought to go with my Spectra S2 (since insurance didn’t cover the S1 with battery). Used it to pump while driving yesterday and it worked great. Couldn’t tell a difference! The 8 AA batteries is a bit brutal, but I invested in some rechargeable ones so hopefully that will pay off. Read more

I’m thrilled with this purchase! I travel quite a bit for work, and as a breastfeeding Mom, I have to pump on the plane during extra long flights. This battery pack is a total lifesaver! It works perfectly with my Spectra 2, and I’m able to pump without an outlet! Highly recommended! Read more

Just got back oversees and had no other option but to purchase this battery pack. Unfortunately, I researched and there are NO other options viable. So I had no choice because of the voltage issues oversees would have burnt the motor. The plus side, I was able to pump EVERYWHERE-the plane, he train, mother-in-laws house, car, hospital-you name it. I can definitely tell the battery pack is not as strong as straight from the outlet. Which for most maybe isn’t an issue, but since my supply is a little on the lower side I need every little bit of suction. Anyways, I was satisfied overall-for the job done. But do note you will need LOTS of batteries. Read more

This made traveling and being away from an outlet a breeze to still be able to pump. I bought this b/c my lil was in NICU for 3 months and this made it easy to go eat and not have to worry about missing a pumping session. I used rechargeable batteries in mine to run my medela and it was wonderful. Sometimes towards weak batteries, the suction on the pump would not be great but that's to be expected. I could use it on basic rechargeable batteries for 8 to 10 sessions of 45 mins approx. before I needed to recharge them. I would recommend this to any busy mom traveling or on the go! Read more

This product enables my wife to use her Medela pump while we travel internationally - as the usual wall plug-in can’t be ised overseas. The battery pack does the job. BUT, it takes 8 batteries at a time to run the pump for half an hour to one hour. Also, the power is extremely reduced. My wife uses it turned up to full power and said it felt like less than the lowest setting with the outlet cord. According to Medella, rechargeable batteries last longer and enable more power on the lower setting. We think it reflects the fact that Medella is behind the industry standard on efficiency and optimizing the pumping experience for moms. This product helps us, but the experience overall could be much better. We only use Medella because it was provided through our insurance with Obama Care, which is a nice plus! But apparently this benefit is being rolled back anyway. Read more

I'm so happy I bought this! I'm a breastfeeding mom but also work full-time and my work requires abroad travel at times. I used this on planes, airports, abroad office and hotels with some good rechargable Energizer batteries (got the universal Energizer charger), it lasted for 4 pumping sessions of 20-25 mins each approx. I am sure it could have gone for a 5th session. I even used the pump on a higher than usual intensity but it wasn't really necessary, the power is of course not as good as if plugged to the electrical outlet, but not a big difference either. This is a great purchase if you need to travel abroad with your Medela Pump in Style and don't want to expose it to possibly burning due to the different electric voltage out of the U.S.A. This helped me keep my milk supply almost intact after 3 weeks away from my baby. Read more

This product is AMAZING! I went to Paris for four days and pumped every four hours and the batteries lasted the entire time! I couldn’t believe it! Great for traveling. I used this with my medela pump and freemie cups. I ordered the freemie pump and it was the worst with no suction so this was my backup plan and it worked amazingly! Carried in a backpack throughout Paris and this paired with freemie cups enabled me to keep my pump in a bag next to me and pump on the plane/meals/etc without anyone knowing! It is also great for travel abroad because you don’t have to worry about frying your pump with converters/adaptors. Couldn’t recommend enough! Read more

Works exactly as described. I use this on planes, in the car or anyplace else I don't have an outlet. On a plane I 100% recommend using this over an outlet on the plane (such as in the lavatory) because it is not the same current and your pump will not operate well at all. I never bought the car adapter so I can't compare that, but I liked that I didn't have to have the car on to use this. So I could discreetly sit in the car and pump while parked.There will be a degradation in pump performance as the batteries get used, and there isn't really a hard and fast rule despite what Medela says about # hours you can use. I say just change the batteries when you notice it starting to get weaker! If the batteries are good, you should not notice a difference between this and being plugged in.I also used this in Europe because you cannot just plug a US Medela power cord into an adapter because the voltage is not the same and the motor will not work on European voltage. Don't risk it, just use the battery pack! Read more

Amazing Product Read more

Very goodproduct Read more