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.
The info printed on the both AC Adapters
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|
How a DELL D610 with BIOS revision A06 reacts on both adapters
The PA-12 AC Adapter connected to a D610 with BIOS revision A06
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.