The Streamlight 66143 Stylus Pro USB Replacement Battery is a must-have accessory for anyone who owns the Streamlight 66143 Stylus Pro USB flashlight. This high-quality lithium ion battery provides longlisting power and reliable performance, ensuring that your flashlight is always ready when you need it. With its rechargeable design, this battery is not only more convenient than disposable batteries, but it also saves you money and reduces waste. Installing and removing the replacement battery is a breeze, with no tools required. Simply pop the old battery out and insert the new one, and you're ready to go. This makes it easy to keep your flashlight in top condition, even when you're on the go. Whether you're a professional who relies on your flashlight for work, or an outdoor enthusiast who needs a reliable source of light in the wilderness, the Streamlight 66143 Stylus Pro USB Replacement Battery is an essential accessory. With its longlisting power and easy-to-use design, it's the perfect complement to your Streamlight 66143 Stylus Pro USB flashlight.