7577 does not work on battery

Question

With charger unplugged, laptop will not boot.

With charger plugged in, laptop works fine. Battery indicates 92% charge.

I have tried disconnecting the battery cable and reconnecting, no luck.

Please advise,

Steve

DELL-Cares · Answer

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AdrianG001 · Answer

Try resetting the BIOS!!! Disconnect AC and remove the Base Cover. Disconnect Main Battery and RTC/BIOS battery. Connect AC and power-on for just a few seconds. Disconnect AC and reassemble.

parchping · Answer

Thanks Adrian, good idea. Unfortunately, the laptop doesn't boot at all now. I think it's flashing 3 amber, 1 white on the front led, which I think means it needs a new cmos battery. The flashes are pretty fast, and hard to count.

The battery is a common CR2032, but since it has leads and a connector they get $30-$40 for them. What a racket!

parchping · Answer

Finally got the cmos battery. Boots fine now.

parchping · Answer

I found one on Amazon https://www.amazon.com/gp/product/B08HB72MLM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1

Inspiron

7577 does not work on battery

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