The Sakar Digital Concepts CH-740 7V AC adaptor for use with Canon Powershot digital cameras is a replacement power adapter for use with your compatible Canon Powershot series digital cameras. The CH-740 provides AC power to recharge the battery in your Canon S30, S40, and S45 Powershot digital camera. This unit features a new built-in IC chip that helps it not only provide short circuit protection, but thermal shut-off protection to keep it from overheating, as well as an automatic shut-off that protects your battery from overcharging. The CH-740 plugs directly into your wall outlet, and is backed by a manufacturer"s limited 3-year warranty. This AC Adapter has a lightweight and slim design making it convenient to power your camera from any power-strip or outlet, allowing ease of use when using the camera for indoor shooting. An AC adapter which fits most Canon Powershot is ideal for conserving battery power and is recommended for use while downloading images to a computer.