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High-end gaming laptops produced by Alienware (a subsidiary of Dell since 2006).

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will not load windows on battery mode.

I have a similar issue.

My Alienware X17 R2 will not load windows if its on battery mode.

I can use the laptop fine once it is on, if I put it to sleep it wakes up fine. If I dissconnect the AC adapter will I am working the laptop does stay on for hours without any issues.

If I shut down or do a restart without the AC adapter connected and machine most times reaches the windows logon screen for a slit second and just powers off.

I have already done a clean OS install.

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Hi @plox,

Can you get into BIOS from startup OK (F2 key) when in battery mode only?

Can you can boot into safe mode OK (from startup) on battery only?

Try booting using this free standalone program and check if it boots and works OK using battery mode only. Doing all this I'm don't think that there's a memory problem but am trying to see if it an SSD problem.

If it works OK to get into BIOS but not safe mode, and the standalone works OK also it's narrowing down a bit to the SSD or its power/controller circuit I think, but 1 step at a time.

Have you checked if the laptop has the latest drivers and firmware installed (especially the SSD, chipset and BIOS)?

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Hello Jayeff, Yes I can go and stay into the bios on battery mode with no issues.

The Machine can boot in safe mode, which works ok.

I do also suspect an SSD issue my self. All drivers are up to date and also bios update to.

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@plox

Just to eliminate it as a possible cause disable fast startup and then check when trying to boot into normal mode on battery.

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Tried that still no luck shuts off at windows logon screen

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Hi @plox,

Been thinking that it can't be the SSD because if it were then it also would've failed when trying to boot into safe mode

Try creating a battery report to check the condition of the battery.

When you have the report, compare the Design Capacity value versus the Full Charge Capacity value. For a good battery they will be nearly the same value.

You can work out as a percentage the state of the battery by applying the formula Full Charge Capacity value x 100 ÷ Design capacity value.

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The SSD is OK since it gets to the boot screen and starts OK on AC. If it runs for a long time on battery after it is started, then the battery should be OK. However, you might try to run a stress test, high power use, to verify that. If one of the cells has a high internal resistance, it could drop the voltage when a higher current is being draw.

If it starts in BIOS and safe mode, then something that starts at the logon screen is overloading the battery - but that likely points back to the battery. The only thing I can think of that might would be the fans and potentially dirt causing them to draw more current to start. But they should also start in safe mode, but maybe not. Is there anything plugged into the LT? If so unplug anything not needed.

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There is nothing plugged to the laptop.

Laptop is only 3 months old, new and so fans are clean. I am thinking I may not have noticed if had that problem from receiving it since mostly it was plugged in. I have tried the OS install onto another secondary Drive with the same results. At this point I am awaiting a response from Dell as they to are puzzled. Laptop is under warranty so going for replacement.

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