Good that I have tested the product before use! The pump of the battery is relatively Powerful long as there is full but can rapidly after. After about 2 minutes of run time the device waned despite 24 hours of charging time. So you do not get air bed for two fully. But since I did not have time to exchange the device or to get another model I have the battery unceremoniously removed and clamped a battery with significantly more ampere-hours. Not recommended! The next time either a pump with power plug or equal to a hand pump with proper volume.
