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Cake day: July 15th, 2023

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  • A cell’s voltage will change with how much energy it stores, but if you keep applying current to force more charge to move you can cause voltages to be quite far outside of the proper range. However you don’t want to do this as at minimum you are damaging the materials in the cell, or worse, cause a significant safety hazard where the cell could catch on fire.

    You can look at the Discharge Curve of a cell which compares voltage vs capacity, as a rule of thumb, essentially the steeper the curve changes, the more damage you are doing to the cell by operating in the range.












  • This is especially frustrating as a Canadian where our market isn’t big enough to have options for a lot of specific goods. I’ll look to buy something and pick what I want only to find that the choices are Amazon or a US retailer with insane shipping costs plus potential customs charges to Canada. Even if I do find a Canadian retailer that sells it, shipping is often more than the product itself.

    I’ve started ordering a bit more from Aliexpress, especially for things less than $20 since shipping is usually free or a couple dollars. Otherwise larger stores in my area like Best Buy, London Drugs and Canadian Tire.