Most rechargeable batteries in the past used NiMh chemistry. They charge very slowly and struggle to keep up with high-consumption applications. Additionally, NiMh batteries discharge when not in use. The chemistry of Pale Blue and its intelligent circuitry address these issues. Don't waste money on disposable batteries. One single Pale Blue battery replaces more than 1000 alkaline disposable batteries. Every battery you buy needs to be produced, shipped, stored, sold, and disposed of. By using a Pale Blue, you can replace the need for 1000 batteries. This saves a lot of resources and, over time, a significant amount of money. Pale Blue is a member of "1% for the Planet" and "Protect Our Winters," helping to protect the world for future generations.