Comments on: Jump starting a recelled IBM Thinkpad T40 battery http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/ Durable Laptop Batteries Tue, 30 Apr 2013 01:48:43 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: rcChopperDave http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14247 rcChopperDave Mon, 30 Jul 2012 00:40:24 +0000 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14247 Thank you for posting this!

I have a dead thinkpad battery that I will try to revive following your technique.

It is kind of a good thing that? you didn’t keep the battery looking like new when you opened it. The damaged case will be a reminder that the battery is modified and should be handled with extra caution.

]]> By: therealjammit http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14246 therealjammit Mon, 30 Jul 2012 00:25:16 +0000 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14246 Instead of a jumper, you might want to try jump starting it from the outside of the battery with? a current limited 12V power supply. Pretty much any 12Vdc power supply with a 100 ohm resistor in series should be enough.

]]> By: mitulabattyi http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14245 mitulabattyi Mon, 30 Jul 2012 00:06:14 +0000 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14245 Hi!
Is the fan parallel connected? to the resistor?

]]> By: hugatry http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14244 hugatry Sun, 29 Jul 2012 23:36:25 +0000 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14244 Yes. I connected the fan to be able to see when there is voltage in the connector. Resistor is for? testing if the battery can handle 1A load.

]]> By: rolandhensle24 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14243 rolandhensle24 Sun, 29 Jul 2012 22:47:02 +0000 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14243 This video went viral on Paris?

]]> By: francissanfo717 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14242 francissanfo717 Sun, 29 Jul 2012 21:54:08 +0000 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14242 So? I ponder exactly where the improper sort of? comments are.

]]> By: sqhschief http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14241 sqhschief Sun, 29 Jul 2012 21:11:42 +0000 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14241 No.?

]]> By: pramuk9998 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14240 pramuk9998 Sun, 29 Jul 2012 20:40:22 +0000 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14240 I have lenovo g-450 i also re-celled the battery and i have the same problem no output from the battery connected you here short circuited the +ve point to some point on pc board? in my ckt what is the point where i have to short

]]> By: hugatry http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14239 hugatry Sun, 29 Jul 2012 20:19:01 +0000 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14239 Yeah, I quickly shorted the positive side of the cell pack? and the positive pin of the connector. Unfortunately I don’t know which pin is positive in g450′s battery’s connector.

]]> By: 4ckatro http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14238 4ckatro Sun, 29 Jul 2012 19:51:50 +0000 http://blog.laptopbatterylife.com/2012/07/29/jump-starting-a-recelled-ibm-thinkpad-t40-battery/#comment-14238 Hi there!
I have short circuited (just for a second) the positive and negative conncections and the output is 0V.
What if i wont? dissasemble the battery and i use an external suply to revive?

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