Battery charges only when the laptop is off

I have a Toshiba Satellite A70 laptop. Picked it up on eBay without an AC adapter. I tried several adapters rated 19v as required but shy on the required amperage. I was using a 450watt one. I noticed it would charge the battery OK when the laptop was off but once in windows it would not charge the battery. I read some threads above that pointed to anything from a bad motherboard, voltage regulator power supply or battery problem. Long story short, I bought the proper AC adapter for it, 19v 6.3amps and voila, problem fixed. It now charges in Windows. So if anyone has the same problem, that is how you fix it. Spend the money and get the right adapter for your laptop. Hope this helps someone.

This is very important to choose the right AC adapter for your laptop. The output voltage MUST be exactly the same. If your laptop requires 18.5V you must use 18.5V adapter. The amperage should be the same or higher. If the laptop requires 4.74A adapter, you’ll have to find an adapter witch provides 4.74A or MORE.

27 Responses

  1. hi i have toshiba satellite a70 at first i tried with a charger that dint have the right amps to it but i recently bought the exact right charger for it and its still doing the same thing it will charge the battery when its off but when i power up into windows it wont charge at the same time could it just b that battery is too old or is it the main circuit for the battery any help would be nice thx in advance

    Mike

  2. hi! i have fujitsu amilo li 3710. the problem is only with the LED charge indicator (AC plugged in).. the indicator functions only when windows is loading or running.. if i plug it into AC while laptop is off the charge indicator shows charging although the charger stops charging the batteries. i solved this problem once by updating one driver but i don’t remember which.. it stil appeared after i formatted my laptop. can you pls help me what can it be related with?

  3. Terry

    I have an identical problem with 2 Dell D510 laptops. Neither will detect when an a/c adapter is installed (so will not charge the battery or run the laptop) UNLESS I plug an external monitor into the laptop. As soon as I plug it in, the laptop works fine and the battery charges properly. As soon as I unplug the monitor, the adapter is no longer detected or functional. Both laptops work fine on a charged battery. Same results with multiple adapters. Any ideas?

  4. I have the opposite problem on my IBM T42 my battery only charges when the computer is turned ON.

    When shut off or in hibernation the battery does not charge it used to and the charging light used to come on when off now it doesn’t.

    It’s got me stumped any ideas on this twist?

  5. 1MOPARMAN

    I HAVE 2 DELL C610’S. BOTH WILL NOT POWER ON WITH AC ADAPTER ATTACHED, HDD & RAM. I TRIED THE 30 SEC TEST W/O AC & ATTACH AC AND POWER BUT, DI NOT WORK.

    ONE OF THE 610’S WHEN AC ATT’D WILL SHOW BATTERY CHARGING-MEANING POWER IS GOING THRU MB BUT, WILL NOT POWER ON. THESE LT’S DID POWER UP A MONTH AGO.

    ANY SUGGESTIONS.

    THANX

  6. Laptop Freak

    candy,

    is it fine to off the battery charger when the battery haven’t fully charged

    There shouldn’t be any problem.

  7. is it fine to off the battery charger when the battery haven’t fully charged

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