Key benefits Small and portable: compact battery convert box that is easy to carry. Flexible compatibility: converts any battery size to Csize for use in devices that require C batteries. Fourpiece kit: includes four professional and practical battery adapter convert cases. Secure design: built with a dedicated slot to fix the battery in place during use. Healthminded design: crafted with your health in mind for reliable, everyday use. What it is and how it works The Battery Holder is a set of four professional and practical battery adapter convert cases designed to enable any battery size to be used as a Csize battery. To use, insert the appropriate batteries into the adapter. When connected, the setup functions the same as a standard Csize battery. The box is compact, intended for easy transport, and includes a secure slot to keep the battery stable during use. Compatibility and features Function: converts any battery size to Csize for use in devices that require C batteries. Size: compact and portable storage that fits easily in bags or onsite spaces. Material and build: designed for durability and practical everyday use, with a secure slot to fix the battery in place. Performance: provides the same functionality as a Csize battery when the appropriate batteries are placed into the adapter. Use scenarios Photography and lighting: use in external flashes or LED light panels that require Csize batteries, allowing you to adapt common sizes on the go. Home electronics and toys: power remotes, portable radios, flashlights, and toys that use C batteries by using the adapters with readily available battery sizes. Emergency preparedness: keep a versatile power option in an emergency kit by enabling any common battery size to serve as Csize in critical devices. Notes The kit includes four adapters, designed to work together to expand battery compatibility across multiple devices. For results, insert batteries securely into the adapter before placing it in the device's power slot.