I have a vaping device that takes one 18650 battery, I typically vape at 50-60w so this draws 15-20 amps of current from the battery. I typically vape for about 1 second so this is a pulse discharge but I am having a hard time finding a battery that works well. I tried a 3000mah battery that has 20a max cdr printed on it but it rapidly looses capacity and is pretty much useless after about 100 charges, it must be because I am drawing a lot of current. Is there a battery cell that will work better for me for this application?
The battery you are using is designed to be used at 20A max. Think of it like the redline on your car. If you keep shifting at redline all the time the engine is probably not going to last that long. So look out for a battery that is from a reputable brand that is up to 30A max discharge which isn't going to be under that much stress than the 20A one you're using. Also 3000mAh seems a little too high for a 20A cell it might be fake or very high quality. Usually 2500 mAh is the sweet spot on 18650 cells when it comes to both discharge and capacity. If you can measure the temperature of the cell while using the device since it draws a lot of current the battery might heat up more than safe temperatures causing damage to the cell. You also might just be unlucky and you might have received a bad cell from manufacturing defects. Also check the battery charger you're using. If it charges the cell at 4.3 volts or higher it can reduce the lifespan of the cell a lot. Always buy cells from reputable sellers and always buy cells from reputable brands: LG, Samsung, Panasonic/Sanyo, Sony/Murata, PowerXtra, Molicell etc.
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I have a vaping device that takes one 18650 battery, I typically vape at 50-60w so this draws 15-20 amps of current from the battery. I typically vape for about 1 second so this is a pulse discharge but I am having a hard time finding a battery that works well. I tried a 3000mah battery that has 20a max cdr printed on it but it rapidly looses capacity and is pretty much useless after about 100 charges, it must be because I am drawing a lot of current. Is there a battery cell that will work better for me for this application?
The battery you are using is designed to be used at 20A max. Think of it like the redline on your car. If you keep shifting at redline all the time the engine is probably not going to last that long. So look out for a battery that is from a reputable brand that is up to 30A max discharge which isn't going to be under that much stress than the 20A one you're using. Also 3000mAh seems a little too high for a 20A cell it might be fake or very high quality. Usually 2500 mAh is the sweet spot on 18650 cells when it comes to both discharge and capacity. If you can measure the temperature of the cell while using the device since it draws a lot of current the battery might heat up more than safe temperatures causing damage to the cell. You also might just be unlucky and you might have received a bad cell from manufacturing defects. Also check the battery charger you're using. If it charges the cell at 4.3 volts or higher it can reduce the lifespan of the cell a lot. Always buy cells from reputable sellers and always buy cells from reputable brands: LG, Samsung, Panasonic/Sanyo, Sony/Murata, PowerXtra, Molicell etc.