Full Version: Do Not Let The Batteries Get You
From: Harvey only (HARVEY-ONLY) [#8]
23 Nov 2006
To: UncleSteve [#7] 24 Nov 2006
There is usually a four pin jack on the board. It usually has a jumper across pin 2 and 3. You will need the information on your specific boars, surprisingly most are available somewhere on-line. You will need to know which pin, 1 or 4 is the + and which is the -.
Buy an external battery with four pin connector, unless your system uses a Lithium replaceable battery, then you need one of these.
The critical thing is static charge on your body, more than 15 volts will be a fairly good bet to blow out many parts in a computer. An arm or hand MUST be on the chassis if you do not have an anti-static wrist strap connected to the chassis. Turn on the computer after taking the case off, yes turn it on you will need power to the CMOS or you will lose the programing in the chip. Now carefully replace the battery. Do not touch anything else with the battery or you can short what you touch and blow things up. Be sure to place the battery in the proper polarity, if you get it backward it is likely to blow the CMOS chip and then the battery will literally explode like a big firecracker in a short time, like 30 seconds. The explosion can be dangerous.
Now you know why I did not explain how to do it. Best bet is to bring it to a computer store and have them do it. The Lithium batteries will give 5 to 10 years of service before failing.
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