I have a welding helmet that is powered it seems from 2 lithium rechargeables charged by a solar panel on the front . The batteries are a pair of 3V nominal CR2330 's and the m/m shows 2,81V and 2.72V on them respectively.
Now I thought to charge them a bit and connected my lab power supply to each in circuit and they would not take any current even when the voltage was boosted . So I un-soldered them and tried to charge each separately with the same response - no current going in?
So are these some sort of Chinese anti personnel device to cause cancer in the brain . Do they have a dust sized piece of plutonium or radioactive substance inside.
I ask because the cells don't take current even if I take the voltage to 20V . Attaching an led and resistor across them they seem to keep it alight for more than 2 days . I can't get them to discharge and I can't get them to charge ?
Whats going on?
Now I thought to charge them a bit and connected my lab power supply to each in circuit and they would not take any current even when the voltage was boosted . So I un-soldered them and tried to charge each separately with the same response - no current going in?
So are these some sort of Chinese anti personnel device to cause cancer in the brain . Do they have a dust sized piece of plutonium or radioactive substance inside.
I ask because the cells don't take current even if I take the voltage to 20V . Attaching an led and resistor across them they seem to keep it alight for more than 2 days . I can't get them to discharge and I can't get them to charge ?
Whats going on?
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