From your description.. I see two possibilities here:
1) somebody left the vehicle in assessory mode, or left a door cracked open or something that caused the CRV to not fully power down. I say this because you specifically stated that your son had his cell phone plugged in. In point of fact.. if he was drawing power to his cell phone, or was linked to the entertainment system... then there is no way the vehicle was powered down and in low power mode. [You cannot charge a cell phone or interact with the CRV with it as long as the vehicle is powered down]. As such.... the vehicle would be drawing several amps of power from the battery, which means you have at most 90 minutes on a fully charged battery before it is completely depleted, and probably only 60 minutes before it lacks the power to start the vehicle. This is not unique to Hondas in any way... it is common with newer vehicles, so let's not blame Honda here.
2) You did in fact have your vehicle powered down, but that there is a parasitic drain somewhere that is abnormal. This can and should be checked and verified by a Honda Dealer to preclude any system failure in your vehicle that is preventing proper power down. This is a straight foward warranty issue.
It is of course possible that you simply have a defective battery in your new CRV. It does happen, and again... this is a straight forward thing for a dealer to test and evaluate and if needed, replace the battery under warranty.