DS-40 User’s Guide Safety Instructions ❏ Do not subject the product to physical impacts or drop the product. ❏ If you notice any abnormalities such as noise, overheating, smoke, odor, discoloration, or deformation, immediately turn off the product, unplug the cables if there are any, and stop using the product. ❏ Unplug any cords or cables from the product before transporting. ❏ Do not leave the product in a car. ❏ Avoid subjecting the product to condensation. When using the battery ❏ If battery acid gets into your eyes or on your skin, immediately rinse the affected area thoroughly with water and seek medical treatment. If a battery is swallowed, seek medical treatment immediately.
❏ Use only AA-size batteries according to the directions in the user documentation. ❏ To protect against short-circuiting, do not remove the outside sleeve of the battery. ❏ Do not handle the battery with wet hands or use it near water. ❏ Do not expose the battery to water or high humidity. ❏ Do not drop, puncture, disassemble, mutilate, or short-circuit the battery. ❏ Do not use a battery that is leaking or damaged in any way. ❏ Do not expose batteries to heat or flame. ❏ Prevent the battery from coming into contact with metal objects that could short-circuit it, such as coins or keys. ❏ Do not use the battery if its terminals are soiled.
❏ Do not insert the battery into power outlets or other power sources such as car cigarette lighter sockets. ❏ Do not solder wires or terminals directly to the battery. ❏ Do not touch the battery terminals. ❏ If overheating, discoloration, or distortion occur, remove the battery from this product and do not use it. ❏ Do not mix different types of batteries; this can cause fire or explosion. Always use batteries from the same packages as a set. Do not mix old and new batteries. ❏ Do not install the batteries in the wrong direction. Do not insert any foreign materials into the battery compartment.
When storing the battery ❏ When not using this product for a long period, remove the battery from the product and store it separately. ❏ Do not store the battery where the temperature or humidity is very high. 9