I wired an old (1993) GPS to 12V through its external connecter and blew a 100 uF SMC capacitor to carbon and most of the associated gold trace lifted and vaporized. Also a 10V electrolytic went open circuit. The input diode seems OK still, so I'm ruling out reverse polarity. So, likely, the device had no internal regulator. Magellan Meridian. Used data from the Meridian XL.
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Re: Battery powered device blown on 12V
Pictures?
What 12v power source did you use? If you used a wall-wart, that could be the problem. Either it isn't a DC output, or it isn't regulated (open circuit a 12v dc wall wart puts out nearly 17 volts!)Muh-soggy-knee -
Re: Battery powered device blown on 12V
You sure that it needed +12v in and not 6v or 9v?Find Nedry!
Check the Vending machines!!
<----Computer says I need more beer.Comment
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Re: Battery powered device blown on 12V
I remember selling these and some took regulated (more expensive) 12V adapters and the newer models would make a sell point with the direct 9-30V cheaper adapters (usually with a blocked off female pin to prevent what I did).
I used a regulated supply, unfortunately my 12A one (Microsoft game console).
I can get it to run on 3 AA batteries again, but it needs to air out for a bit. Fried tantalum SMC stink.
I posted so maybe I can understand circuits better. Like, where was the protection, was it in the axial electrolytic and SM tantalum? Just replace and jumper the blown gold traces? If the cost for the caps and gold compatible solder is more than $4, I'll move on. I did notice the solder was not 60/40; it didn't wet well when I added the lead based solder and took a lot more heat to remove the components.Comment
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Re: Battery powered device blown on 12V
Who's GPS is made in America? Mine is!Attached FilesComment
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My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?
Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?
My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
I have tried multiple different Dell power adapters. My Dell... -
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... -
I just bought this device that came in the mail today I put a set of 4 brand new 21700 high current battery on the charger
The charger has four individual temperature sensors for each battery cell
The bar graph for each individual battery cell is very primitive but will give you a good idea of how each battery cell is preforming and I find something odd I put on the individual battery testing machine that gives more details of the charging/discharging curves but it will be quicker to just charge and discharge battery cells that do not have any issues
Or test... -
I bought a Vostro 3400 motherboard (LA-K033P) to upgrade over my damaged Inspiron 5593 (LA-J091P) board. Everything else is ok except for the battery. This battery I am using now is already a replacement one since I disposed of the bloated original one. Back in the Inspiron 5593 motherboard, the battery charges fine and is identified just fine. However, with the upgraded motherboard, suddenly the replacement battery is labeled as "Not a dell battery". When I borrow a similar battery from my colleague (which did not have replacements yet), it is identified and charges just fine.
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Hello,
i have similar problem as https://www.badcaps.net/forum/showthread.php?t=37828
QUOTED
-It works on charger (without battery connected-only charger)
-It works on battery (without charger connected-only battery)
-& it also works when plugged in battery & charger, but it's not charging the battery
//Confirming, i have same issue, but problem started from charger, centre PIN is outputing 10V+ and jumping randomly 19V
and..
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The IC cannot maintain the input current level...
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