PACUM Aa Batteries3.7v 10440 AAA Battery High Capacity 1000mah Li-Ion Rechargeable Battery, for Led Flashlights Headlamps Wireless,4PCS

Feature: 1. Rechargeable 10440 AAA size ion battery. 2. High-quality steel shell, very sturdy and durable, effectively prevent battery leakage, environmental protection, and tested under strict quality control standards. 3. Stable performance, low internal resistance, and no memory effect". 4. The safe green power supply can prevent short circuit, over discharge, over charge and over current, effectively prolonging the service life of the battery. 5. High energy density and long charging cycle make it an ideal choice for long-term daily use. specification: Model: AAA 10440 battery Type: ion Nominal capacity: 1000mAh Set type: battery only Replace battery: Yes Rechargeable: more than 500 times Rated voltage: 3.7V Net weight: about 9g / 0.32oz Size (height * depth): about 44.6x10.3mm / 1.76x0.41" Battery top: button top Nominal voltage: 3.7V Charging voltage: 4.2V Precautions: Do not pierce, damage or disassemble. Don't reverse the positive and negative. Do not connect the positive and negative electrodes of the battery to metal. When not in use, please place it in a dry, cool environment. Do not use inferior s to charge the battery to avoid damage to the battery. If the battery emits peculiar smell, deforms or shows any abnormality during use, storage or charging, please remove the battery from the device or charge it and stop using it. "