charging batteries at 1amp
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Battery chemistry declines over time regardless of what you do. They decline the least if they are at about 50% charge and kept cool, not cold. Rapid discharging stresses a battery and shortens it's life, rapid charging is also stressful. Severely abusing a battery could get you on the 6 oclock news where some doctor is updating your condition. Be gental.
I charge my 25rs at 1.5 amps and never had a problem. they do not get warm while charging and have not seen any kind of rapid drop in capacity. some people are discharging them at 15 amps or more and this would have a much greater effect on life expectancy
A single 18650 1amp is fine, 2 amps and above is where you can start doing damage and even then it's not something that will immediately effect the battery but if you make it a habit it will.
This...
But there should be no need.
I Vape @ 80 watts (single battery) and charge at .5A almost exclusively.
If this is a problem for you, fill another bay on your charger with an extra backup batt.
Tapatyped
That's wholly dependent on the internal resistance, the chemistry of the battery, the age of the battery, and the battery charger. I have charged two VTC5s at 2A 90% of the time for the past two years, they have never gotten hot and still work great.
Some 18650s can charge at 4A safely, I wouldn't but it's in their specs.
Think about battery packs for drills and laptops, they are certainly charging at 2A+ and function great for two years.
With all that said, you can charge the LG and Samsung at 1A safely. That's a great charger you're using.
My personal preference is the Samsung 30Q, here is the information from their internal testing.
You see after charging at 4A for 300 cycles the battery is still capable of providing 74% of its original 3000mAh spec.
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Well, as said 1a is not an issue.
I charge all of mine, normally, at .75a. that is 1 battery per channel in a 4 bay charger. If I load 4 batteries they all charge at .375a
I charge all of mine, normally, at .75a. that is 1 battery per channel in a 4 bay charger. If I load 4 batteries they all charge at .375a
All the tech info is appreciated but un-needed, OP asked is it safe to chage at 1amp as already said... it is. The discharge curve of a 30Q will be different from a 25R which will be different from an HE2 which will be different from a HE4.That's wholly dependent on the internal resistance, the chemistry of the battery, the age of the battery, and the battery charger. I have charged two VTC5s at 2A 90% of the time for the past two years, they have never gotten hot and still work great.
Some 18650s can charge at 4A safely, I wouldn't but it's in their specs.
Think about battery packs for drills and laptops, they are certainly charging at 2A+ and function great for two years.
With all that said, you can charge the LG and Samsung at 1A safely. That's a great charger you're using.
My personal preference is the Samsung 30Q, here is the information from their internal testing.
You see after charging at 4A for 300 cycles the battery is still capable of providing 74% of its original 3000mAh spec.
Guess what? OP didn't ask about that nor do I think he cares, as a general rule in simple terms generally speaking for all types of 18650s stay below 2amps for safety and 1amp charging is ok but personally I prefer to charge at .5 that's all the info he needed. Simple huh?
I was commenting on your post, you incorrectly stated 2A charging can damage batteries. Not the batteries the OP has.
I showed a chart proving my post, a similar chart exist for the batteries the OP is using. You seemingly pulled a number out of thin air claiming it can damage batteries, where are you getting this information from?
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I do .5 amps 90% of the time, but 1 amp if time is short, and 2 amps only rarely when I'm very rushed, and never charging batteries unattended, ever.
I use the EFest LUC V4 charger.
I use the EFest LUC V4 charger.
Definitely we should always avoid charging unattended, that's why I generally charge at 2A to get it done quickly while I'm sitting in the room.
Charging at 2amps could damage some batteries since I was generalizing all 18650s and not one battery in particular my statement is still correct.
Also know that all cells are not created equal, a pair of 30Q if you put them both under diagnostics will not have the exact same curve. When I give information out to members asking for safety limits whether it be amp draw or charge/discharge limits I always make sure to give then a safety margin.
I don't say well I've seen this battery charged at a rate as high as 3.86 amps so you're good. Why? Because if you give that kind of information people will go out and try to charge the battery at the highest rate possible. So what do you do? You give them safe margins well within safe parameters. All the info I gave the OP is tested and true, if you feel the need to charge at 2 amps or above go for it but that's not the information I'd give a user.
PS: No, you gave wrong information saying that some 18650s can't be damaged by a 2amp charge rate, again I'm talking about all 18650 batteries not one kind, make, model or particular cell. I've seen some cells get hot as low as 1.5amps. You NEED to generalize these things, since 6 months dowen the road someone could read this and have a different battery and try charging above 2 amps, stuff like this happens EVERY day.
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I agree with that but it's why I asked which batteries the OP has. I understand the need to generalize, the batteries and charger the OP have are good and safe to use at 2A charging.
I used the only datasheet I had on me to show as an example, I use the 30Q's so it was handy.
I will generalize to clarify my knowledge.
If your battery charger hasn't been professionally reviewed at 2A charging I recommend not using the feature, stick with 1A.
If you don't know what the maximum charge rate of the batteries your using stick with 0.5A charging.
To check if your charger has been reviewed see this site, or other reputable sources:
Batteries and chargers
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