![What kind of battery is this? (Blue). Thought it was just 1.2v Ni-cd, but upon measuring the voltage, it's at 3.9v. Same size as AA battery. : r/batteries What kind of battery is this? (Blue). Thought it was just 1.2v Ni-cd, but upon measuring the voltage, it's at 3.9v. Same size as AA battery. : r/batteries](https://preview.redd.it/what-kind-of-battery-is-this-blue-thought-it-was-just-1-2v-v0-oj6q2vxbn7a81.jpg?width=640&crop=smart&auto=webp&s=9541b255f78e5697b14064ea45788145a1c9acc3)
What kind of battery is this? (Blue). Thought it was just 1.2v Ni-cd, but upon measuring the voltage, it's at 3.9v. Same size as AA battery. : r/batteries
![Hampton Bay Nickel-Metal Hydride 1200mAh Solar Rechargeable AA Batteries (4-Pack) 79912 - The Home Depot Hampton Bay Nickel-Metal Hydride 1200mAh Solar Rechargeable AA Batteries (4-Pack) 79912 - The Home Depot](https://images.thdstatic.com/productImages/9e2ba1b5-e4c6-4494-ab40-d61be60dc81b/svn/light-blue-green-hampton-bay-outdoor-lighting-accessories-79912-1f_600.jpg)
Hampton Bay Nickel-Metal Hydride 1200mAh Solar Rechargeable AA Batteries (4-Pack) 79912 - The Home Depot
![Hampton Bay Nickel-Metal Hydride 1200mAh Solar Rechargeable AA Batteries (4-Pack) 79912 - The Home Depot Hampton Bay Nickel-Metal Hydride 1200mAh Solar Rechargeable AA Batteries (4-Pack) 79912 - The Home Depot](https://images.thdstatic.com/productImages/ea11d5f5-a94c-4dfe-af88-e082b05d12a8/svn/light-blue-green-hampton-bay-outdoor-lighting-accessories-79912-e1_600.jpg)