The new and more environmentally friendly generation of rechargeable batteries. Single-use batteries are harmful to the environment as they end up in the trash after one use. Rechargeable batteries must be charged in a cumbersome way using a special charger. In contrast, the new LoopEnergy batteries can be recharged over 1000 times, and it's as simple as using a USB-C charging cable, which is now available in almost every household. This is gentle on the environment and easy on your nerves. Furthermore, the high-performance battery impresses with its lithium-ion technology, featuring an extremely low self-discharge rate without sacrificing performance. With 1.5 V, these small batteries are particularly suitable for devices with high, constant voltage requirements. Insufficient or fluctuating voltage can cause these devices to malfunction or not operate properly. Environmentally friendly and durable – LoopEnergy can replace up to 1000 alkaline batteries, helping to protect the environment and conserve resources. Simple and practical – Recharge via USB Type C with a USB charger, power bank, laptop, and more, no additional charger needed. Fast and safe – Multiple protection mechanisms prevent overcharging, deep discharging, overheating, and short circuits with a short charging time of 1-2 hours. High voltage stability – Suitable for devices with a voltage requirement of 1.5 V. Convenient accessories – Includes a 4-piece USB charging cable for single or multi-charging of up to 4 batteries and a practical storage box.