Battery Backup Guide

woohoo asked:


I am looking to buy a new battery for my MacBook. I am looking to buy it on eBay. I notice there are two types of batteries on sale. One is an “original” MacBook battery, which I’m assuming is a brand new battery. The second is a rechargeable battery (like the ones sold on the Apple website). Is there a difference between these two or are is the difference really just that the ones that say “original” are actual Apple batteries. The other ones do not say “Apple,” so I’m assuming they’re just generic batteries.

bmw2002driver1971 asked:


I don’t have their phone service and if the power goes out, I wont need it. I have disconnected the battery (dated about 3 years old). All I want to do is stop it from beeping. Thanks.
Sorry I wasn’t more clear in my original question. The battery died after a little over 2 years. That is why I disconnected it. Verizon has told me that battery replacement is the customer’s responsibility. The tech reccomended that I pick one up at RadioShack. Thanks for your response. If I had a UPS to power my router, at least I could still use my laptop during a blackout. But the truth is my power almost never goes out. So I either need to fork over $30-40 for a new battery of see if I can rip out the alarm from the device.

DragS asked:


Ok, When I shut down my computer, the clock stays the same time it had when shut down, I’m supposing it’s the CMOS battery because I’ve had this computer for about 5 years and never happened that. I’ve opened my CPU and the battery it has is a Coin-like battery. I know there are like 4 different types (external, barrel, coin, and a box ). But I want to know if all coin-like CMOS batteries are the same and compatible.

Also, I was wondering if changing this battery is urgent, becuase I noticed this problem about 3 days now.

Additional Details

I know that if I wait too long to replace my BIOS setting will screw up, so I’ll make backup.

I opened the CPU again and the number the battery has is: CR2032

One more question…Does the Voltage changes? because my CR2032 battery doesn’t say.