Here, we have the Motorola SPN5334A Charger: Motorola And here we have the Motorola SPN5356A Charger: Travel Charger (Micro USB) - SPN5356A - Motorola USA Both claim to charge the battery in 3-5 hours. So what's the difference between them? I can't spot any difference. Then we have the Motorola SPN5358A Rapid Charger: P853 Travel Charger Fast Rate (Micro USB) - SPN5358A - Motorola USA It's a fast rate unit that says it should charge the battery in 2-3 hours. How does it compare to the one that's supplied with the Droid, the SPN5504A? Does anyone have MilliAmp (mA) readings on any of these? I know the 5504 is 850 mA. How about the others?