Rechargeable Goobay AA batteries are an economical and environmentally friendly solution when the built-in batteries in razors, hair clippers, or cordless phones have exceeded their charging cycles. Instead of replacing the entire device, you simply swap out the battery, thus avoiding electronic waste and costs. The batteries are also characterized by their long service life. Goobay rechargeable batteries are particularly eco-friendly, as they can be recharged up to 1,000 times. They are ideal for industrial solutions as well as for use as replacement batteries in electric toys and small devices with built-in batteries. Rechargeable flat-top batteries with a flat positive terminal are also suitable for model building. The AA batteries, weighing 140 g, are ready to use immediately thanks to "Ready to Use" technology. Goobay HR6 batteries are especially environmentally friendly, as they can be recharged more than 500 times. The charge of the AA batteries remains over 70% even after 12 months of non-use. These rechargeable AA batteries are fast-charge capable and are known for their high performance and long lifespan.