2 Pack 3.7v 2200mAh ICR18650 Rechargeable Lithium Ion Battery with SM 2P Plug

My wife's water pik stopped working a year purchase. She really liked it but it stopped charging. Found these reasonable priced rechargeable batteries for a very fair price,and fit perfectly.

I purchased these to replace defunct lithium ion batteries in a couple of rechargeable flashlights that had been in storage for a while. The originals had leads soldered to the positive and negative terminals, so I removed the connectors on the ones I purchased and soldered those wires to the ones that used to run to the battery. The flashlights work like new now.

I only needed one and it's a perfect fit/voltage for a Katadyn UV purifier. Replacing the original battery was not possible through the original mfgr, so I had to improvise. I had to replace the connectors and made them all fit, so now I can keep the extra battery for double the use and no need to recharge while on the trail.

Batteries do not hold a charge

We bought these batteries for a solar flag light. They work as advertised and expected.

I got these and they were both dead on arrival and would not charge. The post office screwed up and said it wasn't delivered yet and now I am getting nothing but trouble to try to return these. Amazon tells me to contact the seller and the seller tells me to contact Amazon and now I'm being told that the associates cannot do anything. Amazon get your s*** together and stop partnering with people like this.

Work 💪 great

I ordered these batteries to replace the batteries and some solar lights they fit they plugged in, but didn’t light up the light so I’m not sure if it was a light was broken or the batteries were the problem. I returned them.