What you wish you knew when you started.
- Thread starter PowerMan
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TheBatteries
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I wish I knew not to use plumbing flux on my batteries...
TheBatteries
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I split this out into its' own thread since it is a separate question from the other 
jdeadman
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- Mar 28, 2017
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Spend more time thinking of the end result then design it correctly from the get-go. Buy better, But Once. instead of cheap junk over and over till you realize that you have to spend proper money on good equipment.
Buy lots and lots of solder (if you are gong to solder your packs vs spot welding)
Buy lots and lots of solder (if you are gong to solder your packs vs spot welding)
1)internal resistance has to be measured when cell is full
2)the opus gives more reliable/repeatable results when it has a fan blowing on it
3)heating cells can only head at one end of the cell (dont only touch or measure on the centre of the cell)
4)harvest is bad on very old batterys (i find a shop who was hamstering them since last decade)
5)beer makes testing cells less boring
6)getting rid of large amounts of broken cells can be a hassle in some countries
7)there are some counterfeit tp4056 out there
2)the opus gives more reliable/repeatable results when it has a fan blowing on it
3)heating cells can only head at one end of the cell (dont only touch or measure on the centre of the cell)
4)harvest is bad on very old batterys (i find a shop who was hamstering them since last decade)
5)beer makes testing cells less boring
6)getting rid of large amounts of broken cells can be a hassle in some countries
7)there are some counterfeit tp4056 out there
BlueSwordM
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- Jul 5, 2017
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- 423
1. You can make money testing and selling all types of cells to finance more expensive equipment or more useful equipment, like a spot welder, solar panels, a better soldering iron, and etc.
2. If a cell leaks, don't do anything ever with it. You remember that post about a Sanyo leaking while charging? Just for giggles, I tried charging it, and it burst on fire. Will be careful next time.
3. Testing 18650s leads to other hobbies, which did cost me money, like high performance flashlights (look up on BLF Q8), but they are still fun to have.
4. With so many 18650s, you aren't going to have to buy any batteries ever again.
5. If I knew lithium-ion was so good to the point of me getting more free time by not shaving as long, I would've gotten in cell salvaging a long time ago
2. If a cell leaks, don't do anything ever with it. You remember that post about a Sanyo leaking while charging? Just for giggles, I tried charging it, and it burst on fire. Will be careful next time.
3. Testing 18650s leads to other hobbies, which did cost me money, like high performance flashlights (look up on BLF Q8), but they are still fun to have.
4. With so many 18650s, you aren't going to have to buy any batteries ever again.
5. If I knew lithium-ion was so good to the point of me getting more free time by not shaving as long, I would've gotten in cell salvaging a long time ago