2Pcs18650 Battery Storage Case 2 Slots x 3.7V for 2x18650 Batteries Holder Box Container with ON/Off Leads and Switch

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Two batteries and this box instead of a $50 replacement battery. Wires are a bit thin but can be replaced if I need to. The on-off switch is why I chose this unit over others. I am not sure why there seems to be so much consternation over the wiring. It states plainly that this is wired in series. 3.7 V + 3.7 V = 7.4 Volts.

The description is misleading. An 18650 battery is larger than a normal AA battery. Some people may know this; I didn't. The item caption refers to 18650 batteries, but the entire text discusses "AA" batteries. The seller should correct this. The product seems to be well made, and it arrived exactly on time and as promised, but I bought it for AA batteries, like the text says numerous times.

I ordered the battery storage compartments and used one to install two 18650 lithium batteries to a LED Motion Sensor Detector Street Light for my yard. The original battery pack was poorly designed and had bad connections.

Good quality construction. Simple, great design. These are ran in series.

This battery pack is advertised for AA Batteries and it is most definitely NOT for AA's. The description is misleading and frankly I'm disappointed. I bought this for a homeschool science class project and now we're going to have to order something else before we can move on with our science class.

These are flimsy and cheap. The cables are way too thin for the current of two 3.7V Li-Ion cells. The toggle switch is terrible and doesn't work half of the time. The springs are really thin and not stong enough to support the cells, so they randomly lose contact. Also one of the covers was broken, but I honestly don't even care about that. Look for something else.