I've got the correct battery (CR1220), but I'm having trouble getting case apart. I removed the HD, Ethernet Card, and the main power pack, loosened all the screws, gently pried the case all around, but it appears to be hung up along the front edge. What's the trick?
Dear srma1963! I had same problem (CMOS battery remove/install of ACER Travelmate 330T). Correct type of battery CR 1220, I changed it succesfully. I made a document with pictures about battery rem/inst., but it is little bit large, therefore post your e-mail adress where I can send this helpful doc. fislac
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Step 1: This might not be your laptop it might give you a guide into the cmos battery The CMOS (Complementary Metal Oxide Semiconductor) battery saves basic settings on your computer. If the date and time function on your Acer notebook isn't working, chances are your CMOS battery needs to be replaced. Separate from your laptop's main battery, the CMOS battery is about the and shape of a coin and is located inside of your computer. Changing the battery yourself isn't the simplest task that relates to your Acer, but it isn't terribly difficult either. Here's how.
Open the notebook screen until you can easily access the keyboard. Locate the plastic bar that borders the top of the keyboard. Insert the flat head screwdriver at one end of the bar and gently pry it up until you can grip the edge with your fingers. Pry the other side of the bar up with the screwdriver and pull out the entire bar, being careful to mind the ribbon cord that connects the keyboard to the computer. Remove the two screws on either side of the keyboard that secure it to the computer. Slide the keyboard up and place it to the side. Remove the four screws on the exposed metal plate that covers the motherboard and remove it. You should now see the CMOS battery in the bottom-right-hand corner of the motherboard. Remove the battery by gently pulling it up and off the motherboard. Replace it with the same model battery (available at any computer store or online). Reassemble the computer the same way you took it apart. Acer TravelMate 6592G Keyboard Replacement Guide http://tomkaminski.com/acer-travelmate-6592g-keyboard-replacement-guide http://www.insidemylaptop.com/taking-apart-acer-aspire-5100-laptop/
it is inside,on the motherboard,it is a watch type battery or a vinyl coated battery pack that plugs in the board,if it is the watch battery type,be carefull removing it.the holder can break off the motherboard very easy,might be able to get to it by removing the plastic piece above the keyboard that surrounds the power button,otherwise dissassembly will be necessary
you will need: a slim x-screw-driver a sharp knife with a slim blade and a cup or else for the screws, don't loose them! a new c-mos bios battery model: CR-1220 (exchange it while your in there!)
you find c-mos battery and hdd under the keyboard!
- turn off the power, remove accu and charger cable, for static electricity is friendly fire to your laptop now !
- open your screen to max. fold (angle of 180 degrees)
- look for removable plastic part near to left holder of screen - carefully remove it - also remove plastic panel right to it in the section between display holders metal should be visible now - carefully! remove keyboard, starting at the left side, continuing topside as you won't be able to fully remove it, simply turn it over - unscrew any screws holding the metal plate, remove it - now you see: left the CPU plus cooler, top right middle the hdd still in an adapter attached to the mainboard, at it's lower right the C-MOS battery (g - turn loos these screws - carefully remove the frame/adaptor holding the hdd - unscrew again the adaptor - seperate hd fram adaptor
... and gotcha!
be careful to get a proper notebook hd (samsung or such) exchange CMOS-battery by chance reattach new hd to frame, again carefully!
to reassamble: rewind the procedures put everything back in place
All older laptops have the CMOS/RTC battery under the keyboard and usually not in easy access as laptop theft was an issue from day one (password reset). After the keyboard is lifted then either look to the front or rear for two little twisted wires connecting the battery to the motherboard. Some older laptops even have two. And since Acer is a less than supportive manufacturer with a perpetually busy website you might even try looking on EBay for a parts only offering that shows pictures of the motherboard.
The CMOS Battery is behinf the main battery behind a platic shield. The shield is relitivly fragile and glued around the edges. Care should be used removing it to prevent ripping. The battery itself is 3" flat pack glued to the case. Mine was wrapped in a black heat shrink with two wires exiting.
The connector is under the keyboard. You will need to remove the 6 scres from the bottom of the case to release and remove the keyboard. The keyboard ribbon cable is attached through a ZIF socket. Be sure and release the cable before removimng the keyboard. Youll have to trace the CMOS battery leads to determine the correct connector.
I found a Maxell ML2032 rechargable battery. Unfotunatly all the 3" flat pack batteries I have found are LITHIUM ION and not rechargeable. If I find a replacement I will post the information.