Has anyone found out why some BIONICs won't charge fully on non-BIONIC wall chargers? This seems to be a fairly common issue.

Upon attempting to charge my Motorola DROID BIONIC with two non-Motorola microUSB wall chargers, I couldn't get the phone past 40%. With the Moto charger, it charges fully (though apparently pretty slowly).

I know the BIONIC's battery is a 3.8v, and my chargers are all 3.7, but the voltage difference doesn't seem large enough to cause a problem. Is is possible the BIONIC can read the difference in the voltage, even if it is small, and is coded not to fully charge on these non-Moto chargers?

Both HTC chargers I've tried were 200mA. It seems maybe the amperage is too low to charge the phone. I'll try and find a higher power one to test.
I doubt this.  I've charged my BIONIC using the following:


Griffin technologies Power Jolt Dual car charger - rated 1A
Motorola car charger for original Motorola DROID - rated 850 mA
Motorola Wall charger for original Motorola DROID - rated 850 mA
Motorola wall charger for BIONIC - rated 850 mA


In addition, I've used 3 different USB charging cables connected to my computer in 2 different ways - to a powered USB 2.0 HUB as well as directly off the motherboard USB rear connector.


USB gold plated ferro-core cable from monoprice connected to powered USB hub - rated 500 mA
USB original Motorola cable that came with the BIONIC connected to the powered hub - rated 500 mA
USB gold plated ferro-core cable from monoprice connected to motherboard USB - rated 500 mA
USB original Motorola cable that came with the BIONIC connected motherboard USB - rated 500 mA


All have charged the phone perfectly fine.

In addition, I've also charged the spare battery in the battery charger using the Griffin in the truck and both Motorola wall units at home to a full charge.

So far, I've had no issues with charging.  Now, any charging performed through the computer USB and / or powered USB hub takes much longer than car / wall charging, but that;s to be expected, with a 35% increase in amperage in those versus regular USB.

I also have the power saving elements of the UI completely disabled, and I live in an area with only 3G access, but I have not disabled 4G on its own.