As the title says. I am not very good at electronics (I might have, uh, actually done this, for no good reason…). I am wondering now if I should be worried about the battery being damaged.
Electronic – If I set a multimeter on ‘ohms’ and put it across a battery, does it short the battery
batteriesmultimeter
Related Solutions
you have to understand one the thing for eg,if you connect a capacitor across a 9V PP3 battery or some other battery (not fruit or vegetable battery) the capacitor would get immediately charged to the battery voltage (but it would take a certain time because of the presence of internal resistance would reduce the flow of charge Q; C=Q/V) and the current through the capacitor would get immediately reduced.
Click here and simulate the circuit by giving different R values like a)0.1 ohm b)1 ohm c)100 ohm d)1K and observe the volatge and current of capacitor for different values of resistor.
The battery is likely less dangerous than the low internal resistance batteries used in RC models. Nevertheless, there is still a very small chance that it will short out internally, puff up, rupture, and burn the place to the ground, even spontaneously after some time. LiPo- and Li-Ion batteries can be rendered inert (chemically unable to enter thermal runaway) by discharging all cells to 0V.
In order to safely dispose of the battery, just submerge it in salt water. The conductive water will then find its way into and short out the terminals of each cell in the pack. After a few hours each cell should reach a potential of 0V, at which point the battery is completely safe.
For a less messy approach, you can connect a power resistor of a few ohms or even a flashlight bulb across each cell, for the same effect.
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Best Answer
It depends on the meter and the battery. To measure resistance your multimeter actually applies some known voltage and measures the resulting current. Although it would be possible to discharge a small battery like a coin cell, I would guess that you are more likely to damage the meter.