Trouble charging new Dell Venue 11 Pro

I have a Dell Latitude 10 ST2, which includes a proprietary charger.  That charger connects to the bottom of the tablet using the same port used by the docking station, if I had one.

I love that little sucker, but wanted more RAM & capability out of a tablet, so I just got a new Dell Venue 11 Pro (i5 model, the 7130).  Sadly, the Venue 11 only comes with a micro USB charger, which seems to be doing a poor job of charging the tablet.  I had it plugged in overnight & it only charged the battery to 68%.  I was running Windows updates this morning while it was plugged in & the battery level actually decreased as I was using it (it went downt to 54%).  Not only that, but the USB cable that came with it is ridiculously short: only about 2 feet long.

This doesn't seem normal, but I never had a Windows tablet that used a micro USB charger before.  My Kindle tablet, for example, charges just fine using the USB charger.

Could I use the charger that came with my Latitude 10 ST2 on the Venue 11 Pro?    I hate calling Dell tech support, so I'm hoping one of the experts on EE.com can answer that question.

Here's a picture of the connector on the Latitude charger.
41ge6O9527L.jpg
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Spike99On-Site IT TechnicianAsked:
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dbruntonCommented:
Short answer:  No

Long answer:

The Latitude 10 puts out 19v and 1.5 amps http://www.ebay.com/itm/Original-OEM-30W-AC-DC-Adapter-Charger-Dell-Latitude-10-ST2-ST2e-XPS-10-Tablet-/200934739163

Your Venue 11 Pro requires 5 volts at 2 amps.

If you could connect the Latitude 10 to the Venue you would blow it to bits.

I assume the charger for the Venue is the 24 watt one and not something else?
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Spike99On-Site IT TechnicianAuthor Commented:
It is the 24 watt USB charger.

I would assume the dock for the venue 11 pro charges the battery using that port on the bottom when the tablet is docked. Do you know what the electrical specs are for that?
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dbruntonCommented:
Hmm.  I misunderstood your original question.

OK, you can't use your Latitude 10 charger on the USB charger connection.  Which was my meaning in the post above.

---------------

Now the charger for the dock for  the Venue 11 pro supplies 45 watts, 19 volts at 2.31 watts according to http://www.amazon.com/Dell-Tablet-Dock-Venue-7CP75/dp/B00GEC7Q28

The dock should charge the tablet as well as support the other connected devices.
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Spike99On-Site IT TechnicianAuthor Commented:
I was faked out by the power status on the tablet.  I thought I could use a regular USB charger because I got a status of "plugged in, charging..."  But, I noticed that the % of the battery's charge kept going down.  So, I connected the charger that came with the tablet and got the same status and the % kept going down, which is what prompted me to post this question.

So, I went to Dell's website & downloaded the recent updates for the tablet (BIOS & other drivers).  After doing those updates, when I plug in a regular USB charger now, it says "plugged in, not charging."   When I plug in the Dell Venue 11 Pro charger, it says "plugged in, charging..."  So, the power status is now accurate and it charges just fine with the Dell charger.

Thanks for the info, though.  It helped.
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Spike99On-Site IT TechnicianAuthor Commented:
I fixed the problem by updating the BIOS & other drivers downloaded from Dell.com.  But, thanks for your responses, they were helpful.
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