PDA will not start up without battery, despite AC adaptor attached
I found that some PDAs (one of which is a HTC Galaxy 100) will not start up unless a battery with some charge is fitted, even though an AC adaptor is connected to it (the Galaxy 100 charges through the USB connector).
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My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics. -
Re: PDA will not start up without battery, despite AC adaptor attached
Hasnt it always been like this for portable devices?Don't find love, let love find you. That's why its called falling in love, because you don't force yourself to fall, you just fall. - Anonymous -
Re: PDA will not start up without battery, despite AC adaptor attached
Yes, at least in the 2000s. For example, my current Android phone (LG Optimus V) attempts to shut down gracefully when the battery is removed while it is plugged in the AC. It then displays the message: 'Battery Required.' [Of course, just powering the phone without the battery at all while on the AC would show that same message.] Then again, every LG phone I owned since 2004 complained about a missing battery.Last edited by Ami Sapphire; 04-27-2012, 01:53 PM.Recovering a BEFSR41 v1 and v2 router from solid red DIAG Light
I have two v2s and one v1.
I am still looking at these boards nearly every day.
What I'm doing: Planning an upgrade of my mining setup from Block Erupters to Red Furys.
Though, if the Block Erupters don't sell, I will keep using them for a while.Comment
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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... -
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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The ISL88739 & ISL88739AHRZ are a highly versatile combo battery charger
configurable for operating as either a Hybrid Power Boost (HPB)
charger or a Narrow VDC (NVDC) charger, supporting 2-, 3-, or
4-cell batteries. Both configurations allow the battery to work with
the adapter together to supply the system load when it exceeds
the adapter capability, referred to as system Turbo mode. HPB
charger configuration reverse-boosts battery energy to the system
bus to help the adapter provide the system power in Turbo mode.
NVDC charger configuration...11-05-2024, 03:28 PM -
Hi, so the old battery was getting error stated it's capacity is starting too get low and should be replaced, so the customer bought a new one and replaced it, but the new battery was also getting this notice that it's capacity is getting low and should be replaced, so i took the laptop for testing and the battery is charging at the terminal at 8.03V , the voltage of the battery is 7.7V, and drawing around 600mA when charger is put and the laptop is off...so that should be ok... but the bios system test doesn't recognize the battery and can't do the battery test and so is the hp battery manager,... -
This iPad was working fine except the battery was not holding charge for more than 40 minutes. I replaced it with a new battery. I haven't glued the battery yet, just inserted it into the slot and held it with battery screw.
The iPad was powered on with the new battery and I am getting white screen with Apple logo for about 10 seconds, then the screen turns dark. It then cycles like this forever.
I know the battery is working because the iPad continues to boot loop without the charger until it depletes to 0% and the message displays I need to plug in the charger.
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