DELL PA-10 and PA-12 AC Adapters - Charging DELL Latitude batteries

25 Aug 2009
Posted by Laptop Junction

With the confusion and frustration of DELL laptop batteries not charging because of dead ID chips in DELL AC Adapters, here's a few bits and pieces about the DELL PA-10 and PA-12 AC Adapter family. Findings are based on tests with a DELL D610 Latitude laptop.

Since the introduction of the DELL Latitude, many DELL AC Adapter revisions are released on the market. Here you find specific info about the PA-10 and PA-12 AC Adapter family.

First a bit of identification of both families. On the left the PA-12, on the right the PA-10 AC Adapter.

DELL AC Adapter PA-10 PA-12 family differences

The info printed on the both AC Adapters

DELL 65W AC Adapter PA-12 Family Partnumber U7970DELL 90W AC Adapter PA-10 Family partnumber U7809

 

 

 

 

 

 

 

 

 

 

 

 

 


Specific info found on the PA-10 and PA-12 AC Adapter

 

Markings PA-12 - 65 Watt PA-10 - 90 Watt
Voltage 19,5 Volt 19,5 Volt
Amps (charge current) 3.34 Amps 4.62 Amps
Part number F7970 Rev A02 U7809 Rev A04
Model no PA-1650-05D2 PA-1900-02D2
     

 How a DELL D610 with BIOS revision A06 reacts on both adapters

DELL D610 Latitude Bios A06 with 65 Watt PA-12 AC-adapter
The PA-12 AC Adapter connected to a D610 with BIOS revision A06

DELL D610 Latitude Bios A06 with 90 Watt PA-10 AC-adapter
The PA-10 AC Adapter connected to a D610 with BIOS revision A06

Although the PA-12 is a 65 Watt adapter, it does charge the battery in a DELL Latitude D610. As already discovered in other Latitude and Inspiron laptop models, battery charging by the PA-12 is blocked by design and even more frustrating; processor speed is reduced.

 

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