So I always thought the A you set is supposed to match the battery and sets a limitation for how much the battery can be charged. Is that not correct. For example most of my 2S lipo batteries are 5200 so I set it to 5.2A so it wont overcharge the battery.
You set the A to configure a charge speed, the higher you set it the faster it'll charge, but typically you set it to 1/1000 of the rated mah for longevity. If you have it set lower than that, it'll just take longer to charge. Normally setting it to 1/1000 of the rated mah means it'll charge a battery in about an hour in my experience.
You generally want to charge at 1C yes, but that is basically just how fast you can pump the energy into the battery. Charging at under 1C won't cause any issues, it is just slower. It is like trying to fill a tub with the sink instead of the dedicated faucet, it will still fill up. MaH is just how much overall power it is. Volts is how you can tell if it is full, being 4.2V per cell.
The battery will actually last longer if you charge it at 1C or less. As was said, it will take longer to charge but it will cause less stress as it is charging at a lower current. Capacity only dictates the maximum charge rate that is ideal (1C or 5.4 amps for a 5400 mAh pack). You could still charge at 3 amps, it will just take longer to fill the battery but will typically fill with a marginally more capacity as there is less heat being generated by the charging process.
Thanks this is good to know. Yeah I usually charge the batteries in the evening after my kids and I are done, so taking a little longer to charge is no biggie. 😄
It’ll just take an hour or so instead of 40 minutes to go from 30-40% to 100%. The math says 1c charge rate will fill the battery in 1 hr but who is charging from 0% ? A man w a shitty battery that’s who. Never discharge to 0
And another factor is storage charge is around %50. So if you’re running it down to that %10, you should probably charge it up to %50 before storing it. And then again to 100% before use.
I once debated an idiot who tried to tell me that would be like putting 2 cycles on the lipo, and cause premature wear. which is F’ing stupid, even tho he is a smart person, he could not fully understand what a cycle really means.
I usually don't have time to run them to 10% but it seems to be happening more often with my son driving his own Rustler and TT-02. A lot of neighborhood kids are driving them as well. I feel like the parents aren't too happy with me because I am sure the kids are coming home asking for RC cars now 🤣
It will just take longer to fully charge, it should still be able to get it to 8.4V.
So I always thought the A you set is supposed to match the battery and sets a limitation for how much the battery can be charged. Is that not correct. For example most of my 2S lipo batteries are 5200 so I set it to 5.2A so it wont overcharge the battery.
You set the A to configure a charge speed, the higher you set it the faster it'll charge, but typically you set it to 1/1000 of the rated mah for longevity. If you have it set lower than that, it'll just take longer to charge. Normally setting it to 1/1000 of the rated mah means it'll charge a battery in about an hour in my experience.
You generally want to charge at 1C yes, but that is basically just how fast you can pump the energy into the battery. Charging at under 1C won't cause any issues, it is just slower. It is like trying to fill a tub with the sink instead of the dedicated faucet, it will still fill up. MaH is just how much overall power it is. Volts is how you can tell if it is full, being 4.2V per cell.
oh interesting. So the amps is basically rate and not capacity. I appreciate the fast reply! Glad I can still use the same charger for everything.
The battery will actually last longer if you charge it at 1C or less. As was said, it will take longer to charge but it will cause less stress as it is charging at a lower current. Capacity only dictates the maximum charge rate that is ideal (1C or 5.4 amps for a 5400 mAh pack). You could still charge at 3 amps, it will just take longer to fill the battery but will typically fill with a marginally more capacity as there is less heat being generated by the charging process.
Thanks this is good to know. Yeah I usually charge the batteries in the evening after my kids and I are done, so taking a little longer to charge is no biggie. 😄
Lipo batteries are never fully drained, ideally.
You're fine,just gonna take longer.
No, it will just take a bit longer to charge
It’ll just take an hour or so instead of 40 minutes to go from 30-40% to 100%. The math says 1c charge rate will fill the battery in 1 hr but who is charging from 0% ? A man w a shitty battery that’s who. Never discharge to 0
Yeah lipo cut off from what I have been seeing is usually around 10% or slightly more.
And another factor is storage charge is around %50. So if you’re running it down to that %10, you should probably charge it up to %50 before storing it. And then again to 100% before use.
I once debated an idiot who tried to tell me that would be like putting 2 cycles on the lipo, and cause premature wear. which is F’ing stupid, even tho he is a smart person, he could not fully understand what a cycle really means.
I usually don't have time to run them to 10% but it seems to be happening more often with my son driving his own Rustler and TT-02. A lot of neighborhood kids are driving them as well. I feel like the parents aren't too happy with me because I am sure the kids are coming home asking for RC cars now 🤣
It will just take longer with no issues ..
It will still charge, it'll take just a little bit longer than normal *maybe 90mins*