with the case.... again, that's not saying anything. ANY device can maintain a charge if you BRING it's power source. So bragging that your device can maintain 24 hours worth of charge as long as you have your power source with it and recharge it is just DUMB. I'm just perplexed that people have blinders on and accept this as a great "FEATURE." "Yes our rechargeable device is awesome and maintains it's power - just keep it in the power case." MAGICAL. If you want to argue that the power case is nicely designed, that's different, I'd agree.