Rechargeable Goobay AAA batteries are an economical and environmentally friendly solution when the built-in batteries in razors, hair clippers, or cordless phones have exceeded their charging cycle limits. 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. Spot-welded micro battery with Z-weld tab for assembling battery packs, soldering assembly required. Ideal as a replacement battery in electric toothbrushes, shavers, toys, cordless phones, and other small devices with built-in batteries. Rechargeable flat-top batteries with a flat positive terminal are also suitable for model building. The AAA battery weighs 12.5 g and is ready to use immediately thanks to the "Ready to Use" technology. Goobay HR03 type rechargeable batteries are particularly eco-friendly as they can be recharged more than 500 times. The charge of the micro batteries remains over 70% even after 12 months of non-use. The rechargeable AAA batteries support fast charging and are known for their high performance and long lifespan.