Member Avatar for meman

Hi there - I've had loads of problems with power supply to my vaio, for ages the dc port on my machine was loose and would only charge when it was plugged in at a wonky angle. Anyway last week the battery went down 2 zero and the the machine will only work with the cable plugged in.
I've since got the dc port fixed, but the batteries still not chwarging - does this mean its caput? is there anything I can do to sort it or shoul I just bite the bullet and buy a new one?

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— given the DC jack was loose and is now repaired, the symptom you describe is most commonly a failed battery pack, but there are a few quick checks to run before buying a replacement. is right that a battery which will not charge but lets the laptop run on AC usually means the pack is kaput; is also right that swapping the pack is often the least painful fix. The useful distinction is whether the system/BIOS actually sees the battery and reports capacity, or whether the pack is invisible or reads 0V when measured.

Practical steps to try now: check VAIO utilities or BIOS/UEFI for battery status; if on Windows generate a battery report with powercfg /batteryreport and inspect design vs full charge capacity and cycle count; if the battery is removable, power down, remove AC, take the pack out and inspect for swelling or damage and measure its terminal voltage with a multimeter (compare to the pack label). Try a power-reset (remove battery and AC, hold power button ~30 seconds, reinsert and boot). In Device Manager uninstall the ACPI battery entries and reboot so Windows reloads drivers. If the pack shows near-zero voltage, is swollen, or the report shows full-charge capacity near zero, replace it.

When replacing, prefer OEM or reputable-brand replacements that match the original voltage and specs; avoid very cheap unknown sellers. Recycle the old Li-ion pack at an appropriate facility. If the new battery still fails to charge, the motherboard charging circuit may be at fault and a shop or Sony support check is warranted.

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Member Avatar for caperjack

if the laptop works when you have it plugged in ,and its not charging the battery then its likely kaputt! my old ibm battery only charges enough to turn it on and then it tells me to plug it in quick

Member Avatar for mechbas

The batt. may or may not be dead. However, it's easier to replace than try to fix burned power connection pins/slots. Lot less aggravation.

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