Large capacity lithium-ion rechargeable batteries imported: 12 sets of 15000mWh 1.5V lithium-ion D Size rechargeable batteries. Please note: This is an D Size battery. Recycling times: can be charged up to 1200 times. Not purchasing a large number of disposable or alkaline batteries can not only save money but also protect the environment. Low self discharge: Even if not applicable for three years, it will still maintain 80% of its initial capacity. If you do not use the battery for a long time, please charge 60-80% every three months. Pre charging and widespread application: Partial pre charging, but it is best to fully charge each battery before first use.  CITYORK rechargeable D Size batteries are perfect for high-performance devices such as remote controls, digital cameras, electronic toys, handheld games, radios, flashlights, alarms, toothbrushes, razors 100% customer satisfaction: If you have any questions about CITYORK’s purchase, please do not hesitate to contact us via email. We are very happy and will do our best to help you solve it! Features: High temperature resistance, Low temperature resistance, No charger required, USB charging Brand: CITYORK Battery Size: D Volts: 1.5 V Manufacturer Part Number: USB-D15000