Question about Acer Aspire One Netbook 8.9" Notebook

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The battery is not charging - Acer Aspire One Netbook 8.9" Notebook

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You can check if the power adapter is broken, if so, you can find a new one from HisMarket.com

Posted on Dec 10, 2010

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Hi

Turn the Acer notebook off by pressing the "Power" button. Remove any power sources connected to the notebook. If the notebook is open, close it.

Flip the Acer upside down and place it flat in front of you. Slide the battery locking mechanism to the right. The locking mechanism is diagonal to the lower left corner of the battery. While sliding the mechanism, slide the slimline battery out of the battery bay.

Insert the AC power adapter. The AC power adapter outlet is located toward the middle of the right side of the notebook. Attach the other end of the power adapter to a functioning electrical outlet. Open the laptop. Turn the power on. If the Acer notebook powers on, the AC power adapter is properly working. Replace the AC power adapter if the laptop does not turn on. Remove the AC power adapter and turn the notebook off.

Inspect the slimline battery. Look for signs of damage such as dents and corrosion. If the battery contacts appear to be dusty or have residue, gently clean them with an alcohol wipe or cotton swab dipped in rubbing alcohol.

Re-install the battery by sliding it back into the battery bay. You may hear a click or snap when the locking mechanism locks the battery firmly into place.

Plug the AC power adapter into the laptop. Leave the power adapter in the notebook for eight hours so the battery charges.

Remove the AC power adapter. Power on the Acer notebook. If the notebook does not power on, the slimline battery must be replaced. If it does turn on, the battery did charge.

Posted on Oct 04, 2010

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Posted on Jan 02, 2017

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2 Answers

Had this tablet for one day, its showing 50% .. battery, when should I recharge..


There's no harm in keeping it on charge all the time. Unlike older rechargeables, newer Li-ion batteries don't need to be broken in by running them down and then recharging.

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How do I charge the battery on a 1990 xlh sportster 1200


The voltmeter test provides general indicator of battery condition. Check the voltage of the battery to verify that it is in a 100 per cent fully charged condition. If the open circuit or disconnected voltage reading is below 12.6 V, charge the battery and then recheck the voltage after the battery has set for one to two hours. If the voltage reading is 12.8 V or above, perform the load test described below.



The load test measures battery performance under full current load and is the best indicator of battery condition. Load testing a battery tat is not FULLY CHARGED i.e. at 12.8 VDC can permanently damage it. Fully charge it first and then let it stand for at least an hour before the load test is done. You also need a load tester AND you should know how to perform a load test. Often the best way to load test a battery will be to take it to a battery shop and have it done there.



VOLTAGE and STATE OF CHARGE FOR AGM BATTERIES IS:

12.8 VDC is 100 per cent

12.6 VDC is 75 per cent

12.3 VDC is 50 per cent

12.0 VDC is 25 per cent

11.8 VDC is 0 per cent



COLD CRANKING AMPERAGE (CCA) for a DYNA battery is 270

Battery Charging Rates/Times (Approximate)



FOR A 19 AMP HOUR DYNA AGM BATTERY



BATTERY STATE OF CHARGE is 12.8 VDC is 100 per cent Charge; Rate of Charge is N/A



BATTERY STATE OF CHARGE is 12.6 VDC is 75 per cent Charge; Rate of Charge at 3 AMP is 1.75 hours at 6 AMP is 50 minutes at 10 AMP is 30 minutes at 20 AMP is 15 minutes



BATTERY STATE OF CHARGE is 12.3 VDC is 50 per cent Charge; Rate of Charge at 3 AMP is 3.5 hours at 6 AMP is 1.75 hours at 10 AMP is 1 hour at 20 AMP is 30 minutes



BATTERY STATE OF CHARGE is 12.0 VDC is 25 per cent Charge; Rate of Charge at 3 AMP is 5 hours at 6 AMP is 2.5 hours at 10 AMP is 1.5 hours at 20 AMP is 45 minutes



BATTERY STATE OF CHARGE is 11.8 VDC is 0 per cent Charge; Rate of Charge at 3 AMP is 6 hours, 40 minutes at 6 AMP is 3 hours, 20 minutes at 10 AMP is 2 hours at 20 AMP is 1 hour



The figures listed above assume that the battery is charging at room temperature. If warmer than room temperature, use a slightly shorter charging time. If colder, use a slightly longer charging time.



The use of constant current chargers to charge maintenance free batteries is not recommended. Any overcharge will cause dry out and premature battery failure. If a constant current charger is the only type available, do not exceed the charge times listed above and do not continue charging the battery if it gets hot. When charging, never exceed 15 volts for more than 30 minutes.



If the battery gets hotter than 110 degrees F or 43 degrees C during charging, discontinue charger and allow the battery to cool. Overheating may result in plate distortion, internal shorting, dry out and/or other damage.

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1 Answer

Dead battery 1990 xlh sportster 1200


The voltmeter test provides a general indicatorof battery condition. Check the voltage of the battery to verify that it is in a 100% fully charged condition. If the open circuit (disconnected) voltage reading is below 12.6V, charge the battery and then recheck the voltage after the battery has set for one to two hours. If the voltage reading is 12.8V or above, perform the load test described below.



The load test measures battery performance under full current load and is the best indicator of battery condition. Load testing a battery tat is not FULLY CHARGED i.e. at 12.8 VDC can permanently damage it. Fully charge it first and then let it stand for at least an hour before the load test is done. You also need a load tester. AND you should know how to perform a load test. Often the best way to load test a battery will be to take it to a battery shop and have it done there.



VOLTAGE (OCV) STATE OF CHARGE FOR AGM BATTERIES IS:

12.8 VDC = 100%

12.6 VDC = 75%

12.3 VDC = 50%

12.0 VDC = 25%

11.8 VDC = 0%



COLD CRANKING AMPERAGE (CCA) for a DYNA battery is 270













19 AMP HOUR BATTERY =



BATTERY STATE OF CHARGE = 12.8 VDC = 100% Charge; Rate of Charge = N/A



BATTERY STATE OF CHARGE = 12.6 VDC = 75% Charge; Rate of Charge @ 3 AMP = 1.75 hours @ 6 AMP = 50 minutes @ 10 AMP = 30 minutes @ 20 AMP = 15 minutes



BATTERY STATE OF CHARGE = 12.3 VDC = 50% Charge; Rate of Charge @ 3 AMP = 3.5 hours @ 6 AMP = 1.75 hours @!10 AMP = 1 hour @ 20 AMP = 30 minutes



BATTERY STATE OF CHARGE = 12.0 VDC = 25% Charge; Rate of Charge @ 3 AMP = 5 hours @ 6 AMP = 2.5 hours @ 10 AMP = 1.5 hours @ 20 AMP = 45 minutes



BATTERY STATE OF CHARGE = 11.8 VDC = 0% Charge; Rate of Charge @ 3 AMP = 6 hours, 40 minutes @ 6 AMP = 3 hours, 20 minutes @ 10 AMP = 2 hours @ 20 AMP = 1 hour





The figures listed above assume that the battery is charging at room temperature. If warmer than room temperature, use a slightly shorter charging time. If colder, use a slightly longer charging time.



The use of constant current chargers to charge maintenance-free batteries is not recommended. Any overcharge

will cause dry-out and premature battery failure. If a constant current charger is the only type available, do not exceed the charge times listed above and do not continue charging the battery if it gets hot. When charging, never exceed 15 volts for more than 30 minutes.



If the battery gets hotter than 110 degrees F. (43 degrees C) during charging, discontinue charger and allow the battery to cool. Overheating may result in plate distortion, internal shorting, dry out and/or other damage.



COLD CRANKING AMPERAGE (CCA) for a DYNA battery is 270

Apr 22, 2014 | Harley Davidson XL 1200 S Sportster Sport...

1 Answer

Chaging batter


The voltmeter test provides a general indicatorof battery condition. Check the voltage of the battery to verify that it is in a 100% fully charged condition. If the open circuit (disconnected) voltage reading is below 12.6V, charge the battery and then recheck the voltage after the battery has set for one to two hours. If the voltage reading is 12.8V or above, perform the load test described below.



The load test measures battery performance under full current load and is the best indicator of battery condition. Load testing a battery tat is not FULLY CHARGED i.e. at 12.8 VDC can permanently damage it. Fully charge it first and then let it stand for at least an hour before the load test is done. You also need a load tester. AND you should know how to perform a load test. Often the best way to load test a battery will be to take it to a battery shop and have it done there.



VOLTAGE (OCV) STATE OF CHARGE FOR AGM BATTERIES IS:

12.8 VDC = 100%

12.6 VDC = 75%

12.3 VDC = 50%

12.0 VDC = 25%

11.8 VDC = 0%



COLD CRANKING AMPERAGE (CCA) for an XLH battery is 270













19 AMP HOUR BATTERY =



BATTERY STATE OF CHARGE = 12.8 VDC = 100% Charge; Rate of Charge = N/A



BATTERY STATE OF CHARGE = 12.6 VDC = 75% Charge; Rate of Charge @ 3 AMP = 1.75 hours @ 6 AMP = 50 minutes @ 10 AMP = 30 minutes @ 20 AMP = 15 minutes



BATTERY STATE OF CHARGE = 12.3 VDC = 50% Charge; Rate of Charge @ 3 AMP = 3.5 hours @ 6 AMP = 1.75 hours @!10 AMP = 1 hour @ 20 AMP = 30 minutes



BATTERY STATE OF CHARGE = 12.0 VDC = 25% Charge; Rate of Charge @ 3 AMP = 5 hours @ 6 AMP = 2.5 hours @ 10 AMP = 1.5 hours @ 20 AMP = 45 minutes



BATTERY STATE OF CHARGE = 11.8 VDC = 0% Charge; Rate of Charge @ 3 AMP = 6 hours, 40 minutes @ 6 AMP = 3 hours, 20 minutes @ 10 AMP = 2 hours @ 20 AMP = 1 hour





The figures listed above assume that the battery is charging at room temperature. If warmer than room temperature, use a slightly shorter charging time. If colder, use a slightly longer charging time.



The use of constant current chargers to charge maintenance-free batteries is not recommended. Any overcharge

will cause dry-out and premature battery failure. If a constant current charger is the only type available, do not exceed the charge times listed above and do not continue charging the battery if it gets hot. When charging, never exceed 15 volts for more than 30 minutes.



If the battery gets hotter than 110 degrees F. (43 degrees C) during charging, discontinue charger and allow the battery to cool. Overheating may result in plate distortion, internal shorting, dry out and/or other damage.



COLD CRANKING AMPERAGE (CCA) for a 2001 XLH battery is 270

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