Check power and replacement parts
Match the charger, sleeve and cap to the exact model.
Identify the connector
Confirm what the box includes and whether the charger is proprietary. Use the specified cable and power source. The charging connector guide explains why the device side matters.
Check the runtime conditions
A listing may give different runtimes for high and low speeds. If it gives just one number, treat the test conditions as unknown. Follow the maker’s instructions before charging again.
Save the model label and instructions
Store the manual, parts list and charging cable together. Replace damaged components only with parts the manufacturer confirms will fit.