If I'm just sitting here at my desk surfing I don't mind the BF'ers 
No matter if I cast a shadow on the Dark Side I still come back to the light
No matter if I cast a shadow on the Dark Side I still come back to the light
I've been playing with a few different themes for my 75C's and this seems to be the most functional and it looks pretty good too.
JoeCockBill's Evolv theme
I'm using his Therion version for my Therion 75C.
JoeCockBill's Evolv theme
I'm using his Therion version for my Therion 75C.
I know nobody here likes purple, but I am getting one of these to run temp testing on, I think my GF would love it.
So is the cell getting hot/ warm the warning? If they stay cool at 2 amps is it then ok to keep charging them there?
I have been reading lots of different opinions on line about what is/ isn't acceptable charge rates for 18650'a,26650's 20700's.
It seems hard to wade thru the crap to find a definitive answer
I'm just trying to cut down my charge times on the 26650's & the 20700's.
The 18650's I don't mind the .5 amp charge but the bigger cells take for ever @ .5 amps
Yes but even if they don't get warm, high amp charging lessens the useful life of the battery. You just need to balance how often you want to replace batteries vs how fast you want your mod charged.So is the cell getting hot/ warm the warning? If they stay cool at 2 amps is it then ok to keep charging them there?
I have been reading lots of different opinions on line about what is/ isn't acceptable charge rates for 18650'a,26650's 20700's.
It seems hard to wade thru the crap to find a definitive answer
I'm just trying to cut down my charge times on the 26650's & the 20700's.
The 18650's I don't mind the .5 amp charge but the bigger cells take for ever @ .5 amps
Charging a 4200mah Li-Ion at 1C (4.2 amps) would be safe but as KTMrider said it would not be good for battery life. Charging at 1/2C (2.1 amps) would be much better for your battery's lifespan.
So is the cell getting hot/ warm the warning? If they stay cool at 2 amps is it then ok to keep charging them there?
I have been reading lots of different opinions on line about what is/ isn't acceptable charge rates for 18650'a,26650's 20700's.
It seems hard to wade thru the crap to find a definitive answer
I'm just trying to cut down my charge times on the 26650's & the 20700's.
The 18650's I don't mind the .5 amp charge but the bigger cells take for ever @ .5 amps
Yes, temperature is a good indicator of overcharge/overdischarge of batteries of all types. I suspect that your 4100 mah 26650 cells will be cool-warm but not warm-hot at a 2 amp charge rate. They are physically larger than 18650's and that helps with heat absorbtion/dissipation.
I don't think so. A bigger cell has a higher volume (and capacity) to surface area ratio. That makes it more difficult for a bigger cell to dissipate heat.
Well, that's true for heat dissipation (larger is not better) Thanks for catching that.
The larger volume of bigger batteries has a large effect on max charge current, that and the chemistry. The chemistry can change the total mah and max output current drastically, typically inversely proportional to each other. A larger cell with identical chemistry as a smaller cell can handle higher charge current while maintaining the same internal temp. This is due to the ratio of incoming charging current to mm^2 of electrolyte contained within the cell. As a bonus the larger cell will have a higher mah rating.
If the charge current exceeds the absorbtion rate of the cell heat will be created as a result. As more heat is created the electrolyte becomes runny and can migrate within the cell, this is what damages cells during the charge cycle from what I've read.
That's about all I know about Lithium batteries from what I've read. After all, I'm no Mooch.
If the charge current exceeds the absorbtion rate of the cell heat will be created as a result. As more heat is created the electrolyte becomes runny and can migrate within the cell, this is what damages cells during the charge cycle from what I've read.
That's about all I know about Lithium batteries from what I've read. After all, I'm no Mooch.
and isn't that a good thing!
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