HP Modelnumber: 14-dh0061nb
This laptop had a shorted cap on a Vcore section. After replacement is works again. But there is still a battery issue.
The battery is HT03XL and with the built-in component test from HP, in the Power section, I get an error: Logic State: Calibration required (20), Charge state: Blown Fuse (42)
I have another same battery, also with error: Logic State: Very Weak (70), Charge state: Blown Fuse (42)
And a third battery TF03XL (looks identical) with error: Logic State: OK (0), Charge state: Blown Fuse (42)
All these 3 batteries are charging normally in an other laptop. So I don't believe the 3 blown fuses. In fact the laptop runs OK from the battery, until it is empty.
So when I plug in a charger, I get an orange led, in Windows I see the battery symbol that power is connected (flash symbol), but the battery isn't charging! But the laptop is working OK. When I measure voltage at the battery conntecor +/- I see 11.50V and no change with or without charger attached. I use an HP charger capable of outputting 19/6A, tried others also.
Now here is my unexplained find:
when I attach my benchpowersupply set to 19.5V 2A to this laptop it takes all the power it can get; the full 2A, in such way that the voltage drops to 14V. If I set the current limit on the benchpowersupply even higher to 3A, it takes 3A! I don't get any powerled, not white not orange.
Of course the first 2 mosfets getting >65°C then. But it looks the battery is charging, When I measure the batteryvoltage again I see12.50V, when I disconnect the charger it drops again to 11.50V or even 11.60 when I let it charging at 2A for 5min.
When I use then benchpowersupply on another similar laptop with these same 3 batteries I do get orange led and a more normal loading current 19V 1.5A
For my benchpower supply I use an HP bluetip charge cable that I recuped form a broken charger. If I recall right, there are 3 leads, black white and blue in this cable. White or blue is sort of signal wire, I think I have this connected with a resistor to + ( a tip I found earlier somewhere).
Maybe this is the reason why I get a charge with the benchpowersupply and not with the HP 6A charger?
But what is the issue then with this logic board? Is there another component failed due to the badcap at the Vcore circuit?
This laptop had a shorted cap on a Vcore section. After replacement is works again. But there is still a battery issue.
The battery is HT03XL and with the built-in component test from HP, in the Power section, I get an error: Logic State: Calibration required (20), Charge state: Blown Fuse (42)
I have another same battery, also with error: Logic State: Very Weak (70), Charge state: Blown Fuse (42)
And a third battery TF03XL (looks identical) with error: Logic State: OK (0), Charge state: Blown Fuse (42)
All these 3 batteries are charging normally in an other laptop. So I don't believe the 3 blown fuses. In fact the laptop runs OK from the battery, until it is empty.
So when I plug in a charger, I get an orange led, in Windows I see the battery symbol that power is connected (flash symbol), but the battery isn't charging! But the laptop is working OK. When I measure voltage at the battery conntecor +/- I see 11.50V and no change with or without charger attached. I use an HP charger capable of outputting 19/6A, tried others also.
Now here is my unexplained find:
when I attach my benchpowersupply set to 19.5V 2A to this laptop it takes all the power it can get; the full 2A, in such way that the voltage drops to 14V. If I set the current limit on the benchpowersupply even higher to 3A, it takes 3A! I don't get any powerled, not white not orange.
Of course the first 2 mosfets getting >65°C then. But it looks the battery is charging, When I measure the batteryvoltage again I see12.50V, when I disconnect the charger it drops again to 11.50V or even 11.60 when I let it charging at 2A for 5min.
When I use then benchpowersupply on another similar laptop with these same 3 batteries I do get orange led and a more normal loading current 19V 1.5A
For my benchpower supply I use an HP bluetip charge cable that I recuped form a broken charger. If I recall right, there are 3 leads, black white and blue in this cable. White or blue is sort of signal wire, I think I have this connected with a resistor to + ( a tip I found earlier somewhere).
Maybe this is the reason why I get a charge with the benchpowersupply and not with the HP 6A charger?
But what is the issue then with this logic board? Is there another component failed due to the badcap at the Vcore circuit?
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