How long does your Aspire 1810t take to charge from 0 battery?

I just got mine last night, and let it drain all the way (took almost 6 hours with continuous use, I installed Windows 7 Ultimate, downloaded software/installed software the entire time, and browsed the internet).

Anyway, I plugged it in today, and it's been charging for just over 4 hours now and it's only at 78%...is this unusually slow to charge? Should I send mine back? I've never had a proper working battery take this long to charge, even 9 cells. Any thoughts would be appreciated.

 

anyone? I could really use some advice here...it took a total of 6 hours and 15 minutes to charge to 100%, does this sound normal? I hope I don't have a bad laptop...even if you have other models, can you please give some input as to how long it normally takes to get a full charge?

 

Were you using it while it was charging? Mine takes about 3-ish hours (give or take an hour) to charge from near empty ( only charged it from that low once) and that was when it was off. I would imagine that it would take a LOT longer to charge if you were also using it.

However if this is still slower than your expectations it probably has to do with the AC adapter being smaller than normal. The one that comes with this laptop is 30 watts, and i looked at some dell 14 - 15 inch laptops for example and their adapters were 60 - 90 watts.

 

That could be it, I was using it for a lot of the time that it was charging, and the time I wasn't using it it was downloading something in the background...if this were the case just over 6 hours doesn't seem too crazy? Thanks for the response.

 

Mine takes around 4-5 hours to charge. No worries there mate, it`s just the stupid "eco" powerbrick that allows only 30W

 

4-5 ? That's criminal high..

 

5 hours on average - device turned off. It really has to be attributed to the weak power supply.

However 1810tray tells me I have 8 hours left at 82% of battery capacity. Display is dimmed almost all the way and WLAN is turned on.

 

I've noticed that compared to my NC10 my new 1810tz takes a very long time to charge, but then again this has been while I have been using it. I think it can actually not charge sometimes depending on what you are doing at the time (ie power used = power charged).

 

i also noticed that it takes very long time to charge my 1810tz compared to my asus 1101ha

 

Thats the point of these new "eco" low voltage bricks.

Since the battery can last for 8 hours, you should be able to let it charge for 5 or even more while you sleep

 

Exactly. Plain charging takes about 20W on average and peak power consumption of the 1810T without charging is around 25W. With a 30W power supply, the rest is all math. It is just not big enough to supply enough power for charging and powering the device at the same time.

 

yes its the power-supply, my asus has 19volt 2.1A but acer gave cheap powersupply 19v and only 1.58A,

 

All is not lost guys. Charging the battery slowly is less stressful for the battery, so it tends to make the battery lifespan longer.

Its better than a quick charge which wears out the battery faster.

Also if you notice, the battery charges up to around 90% faster and slows down charging when the battery is nearly full. Again, this is to reduce the strain on the battery.

 

Would it not charge quicker with a more powerfull power supply ?

So it really needs to be turned off to charge as quick as possible ?

 

Yes, I've noticed that the 1810T takes a long time to charge. Not a big problem, because I knew the power brick is quite wimpy. Large battery is like a larger tank; takes a longer time to charge. I'll happily live with that. I'll be happy to top off the battery whenever I need to.

And topping-off Lithium-Ion batteries partially isn't harmful. Laptops will be happy with of 20-30% discharge-recharge cycles, even in the middle of the battery capacity range -- discharge to 40%, recharge to 70%, discharge to 40%, recharge to 70%. Those modern batteries don't have memory effects, and doesn't wear the battery down nearly as much as a full discharge (100% down to 0%), and you will actually be prolonging your battery's lifetime anyway (actually four 30% cycles in the middle depth-of-discharge area like that -- 30%x4 equalling about 120% of battery capacity -- does less damage to the battery than a single 100%-to-0% battery consumption cycle). Even the Toyota Prius hybrid car is deigned to try to maintain its battery pack at a half-charged state, often avoiding full charging and deep discharging -- to make the battery last as long as possible before the owner of the car needs to spend thousands replacing the battery. So, full battery cycles are useful for marathon sessions, or conditioning and calibrating the battery, but no need to be obsessive about running your laptop down to zero. (Albiet consistently doing this, will cause the battery bar calibration to simply lose accuracy over time if it never sees 100% level and the 0% level once in a while -- then the computer starts to guess slightly more and more inaccurately how much power left is in the battery). Storage of lithium batteries is more recommended in the half-charged range anyway, the lithium battery actually degrades (i.e. permanently loses capacity) faster being stored on the bookshelf, at the 100% charged or the nearly discharged state! (More damage can occur in the discharged state, however.)

That said, I have another power brick capable of 18.5volt 3.5amp (65 watt) with the wrong power connector (too loose, but otherwies correct polarity), but with my Electronics knowledge I let it try to charge my Acer Aspire ao751h since 0.5 volts is within typical device 'tolerances'. It worked, and seemed to charge slightly faster.

So the answer might seem to be yes: A more powerful brick would allow charging faster while the computer was in use. Assuming that the electronics designed in both devices was smart enough to pull more power if the power brick is bigger. (Dell laptops does this automatically with the small Dell brick and the large Dell brick, not sure if there is intelligent power communications/negotiation logic, probably a logic of drawing more amps until voltage sags to a threshold level -- but I could be wrong.)

Hey... My electronics knowledge is not as good as forum member 'Probedude' (shout out to you, I've noticed you already), but enough to know my Ohm's Law and a very basic understanding of various linear/switching (analog/digital) power supply technologies.

There are third party 65 watt power bricks compatible with the Acer netbooks, with the correct power plugs, you could try buying one of those and see if that charges the battery faster, or at least keeps charging the battery at full speed wihle you're using the computer. Most laptops I've used, tend to behave this way -- they seem to recognize the more power available from bigger bricks and allows them to charge at the maximum allowable speed, even while using the computer. Keep the 30watt ecobrick for the laptop bag, and get the third party 65watt bigbrick permanently parked under your home/office desk where you use the laptop the most.