![This is my first battery pack I've opened. Black N Decker 20V 2AH. Tests at 0V on multimeter. Goal is to check voltage of individual cells to see if I can salvage](https://external-preview.redd.it/p3SVsPshVzH5b3SFzyShwl4QLOyLuQJheJDpUBaiZs4.jpg?auto=webp&s=69177b1c3221f46f228543c962c2c0cfe3ef5091)
This is my first battery pack I've opened. Black N Decker 20V 2AH. Tests at 0V on multimeter. Goal is to check voltage of individual cells to see if I can salvage
Price: $ 31.99
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![https://i.ytimg.com/vi/GxGnD1IHr30/maxresdefault.jpg](https://i.ytimg.com/vi/GxGnD1IHr30/maxresdefault.jpg)
how to test battery Easiest way using a digital multimeter model DT9205A
![https://i.ytimg.com/vi/HcikzMG7mMU/maxresdefault.jpg](https://i.ytimg.com/vi/HcikzMG7mMU/maxresdefault.jpg)
How To Test Standard AA, AAA, D, C, and 9V Batteries with a Multimeter
![https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/613E8bLihRL.jpg](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/613E8bLihRL.jpg)
B&K Precision 5491B True RMS Bench Digital Multimeter, 50000 Count: Bk Precision Multimeter: : Tools & Home Improvement
![https://i.imgur.com/mEIVhO4h.jpg](https://i.imgur.com/mEIVhO4h.jpg)
544 best r/batteries images on Pholder Is it pretty normal for unused batteries stored in warm room for years to do this? Expires Dec 2023.
What do I need to set a multimeter on to test AA batteries? This one has a needle not a digital reading. - Quora
![https://i.redd.it/measured-14v-from-a-20v-battery-any-idea-why-voltage-v0-am14i57mgt1b1.jpg?width=3024&format=pjpg&auto=webp&s=f077d541e66f23159a39f5efe17614b7e57df692](https://i.redd.it/measured-14v-from-a-20v-battery-any-idea-why-voltage-v0-am14i57mgt1b1.jpg?width=3024&format=pjpg&auto=webp&s=f077d541e66f23159a39f5efe17614b7e57df692)
Measured 14V from a 20V battery. Any idea why? Voltage changes depending on the pin measured from. Can I use it as a power source for a small 12V pump in my
![https://i.redd.it/5io19bqdu3aa1.jpg](https://i.redd.it/5io19bqdu3aa1.jpg)
544 best r/batteries images on Pholder Is it pretty normal for unused batteries stored in warm room for years to do this? Expires Dec 2023.
![https://i.redd.it/kmnzmlhul4h91.jpg](https://i.redd.it/kmnzmlhul4h91.jpg)
544 best r/batteries images on Pholder Is it pretty normal for unused batteries stored in warm room for years to do this? Expires Dec 2023.
![https://i.stack.imgur.com/3qex6.jpg](https://i.stack.imgur.com/3qex6.jpg)
batteries - powering an old 9V multimeter with a 6x AA battery pack - Electrical Engineering Stack Exchange
![https://i.ytimg.com/vi/NlJOuQV_JwU/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLCh3whULr5DbJUacRbqEMZx3GByMw](https://i.ytimg.com/vi/NlJOuQV_JwU/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLCh3whULr5DbJUacRbqEMZx3GByMw)
9-volt battery testing & why open-circuit voltage is meaningless
![https://i.ytimg.com/vi/m6Rz_lrSGE4/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLDdTAwkQ765dUrDDC0zS6sjt73cyg](https://i.ytimg.com/vi/m6Rz_lrSGE4/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLDdTAwkQ765dUrDDC0zS6sjt73cyg)
How to test a 9v AA AAA C or D Battery with a Cheap Multimeter