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A simple step to revive a dead Ni-MH battery
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I just fixed my 18V NiCad lawn trimmer battery using Paul's method. Easy way to think of this is that there is a fine wire jumper connected across the positive and negative terminals of your bad battery. The charger current tries to push electrons onto the negative terminal of your battery to charge it but the electrons just take the easiest path through the jumper and nothing takes place in the battery. When you "boost" the shorted battery (exactly as you boost a dead car battery) you cause lots of current to travel through the little jumper and it heats up and melts. Now when you hook up the charger the electrons have to enter the battery and cause the chemical reaction that stores them there.
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The program is not arduino based. Its for picaxe microcontroller.
Eyes for My Homemade Humanoid LinQ
hello..am new to making instructables. It would be a great help if you could point out my mistakes I have made in my instructable. Its for a sensor competition.http://m.instructables.com/id/Eyes-for-My-Homemade-Humanoid-LinQ/Thank you and sorry for the troubles.
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Hi, I bought a charger plus 4 rechargeable NI-MH Philips 2450 mAh seal, I had bad luck that one is defective, the value was 0 when I measured, I tried version of this article and it worked! Thanks for the nice tutorial, I saved the battery;)
This worked great for me with 2 cordless phone batteries and a couple of jumper wires. I had to fast-charge the bad one several times to get it up to a voltage where the regular charger would take over, but now it works fine. Thanks!
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