How many amps can I charge my battery at?
07-09-2015, 11:08 AM
#1
Member
Thread Starter
Join Date: Jun 2015
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
How many amps can I charge my battery at?
I have this battery.
It's a 4000mAh 2s lipo battery. It claims it has a 25c constant and 35c burst for discharge. I have my charger setup at 2 amps at 7.4v, but figure it can probably handle more than that. So what's a good amperage figure to get a fast charge without risking damage to the battery?
TIA
It's a 4000mAh 2s lipo battery. It claims it has a 25c constant and 35c burst for discharge. I have my charger setup at 2 amps at 7.4v, but figure it can probably handle more than that. So what's a good amperage figure to get a fast charge without risking damage to the battery?
TIA
07-09-2015, 11:38 AM
#2
Join Date: Oct 2010
Location: newcastle, UNITED KINGDOM
Posts: 658
Likes: 0
Received 1 Like
on
1 Post
Balance charge at 4A.
it claims to have a 5C charge rate, which will be 20A, but I'd stick to 4A which is 1C.
http://hobbyking.com/hobbyking/store...arehouse_.html
it claims to have a 5C charge rate, which will be 20A, but I'd stick to 4A which is 1C.
http://hobbyking.com/hobbyking/store...arehouse_.html
07-09-2015, 06:02 PM
#3
My Feedback: (20)
Join Date: Jan 2008
Location: Frederick, CO
Posts: 5,973
Likes: 0
Received 0 Likes
on
0 Posts
I have this battery.
It's a 4000mAh 2s lipo battery. It claims it has a 25c constant and 35c burst for discharge. I have my charger setup at 2 amps at 7.4v, but figure it can probably handle more than that. So what's a good amperage figure to get a fast charge without risking damage to the battery?
TIA
It's a 4000mAh 2s lipo battery. It claims it has a 25c constant and 35c burst for discharge. I have my charger setup at 2 amps at 7.4v, but figure it can probably handle more than that. So what's a good amperage figure to get a fast charge without risking damage to the battery?
TIA
you could charge that pack faster at 2C without issues
07-10-2015, 02:02 AM
#4
Member
Thread Starter
Join Date: Jun 2015
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
Thanks guys.
On another note, I think I was able to bring a battery back from the dead. My charger was giving me the low voltage warning...which meant I was down to 1 of 2 cells (at least that was the case with one of my other batteries). Anyways...put it a manual nimh charge at a very low amperage (I think 1.0 if I remember correctly) and the 7.4v rating. Let it charge for about 10 minutes, and then switched back to the LiPo setting. Charged properly without any errors after the short manual charge....wonder why that happened?
On another note, I think I was able to bring a battery back from the dead. My charger was giving me the low voltage warning...which meant I was down to 1 of 2 cells (at least that was the case with one of my other batteries). Anyways...put it a manual nimh charge at a very low amperage (I think 1.0 if I remember correctly) and the 7.4v rating. Let it charge for about 10 minutes, and then switched back to the LiPo setting. Charged properly without any errors after the short manual charge....wonder why that happened?
07-19-2015, 04:34 PM
#5
Guest
Join Date: Apr 2015
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
For most stock lipo's you get with a RTF model, you should charge them at 1C, or 2200mah lipo at 2.2 amps. BUT! My 6S 3300mah Nano-Tech has such a high maximum charge on the website, i can charge it at my chargers max rate of 5amps with the only problem/danger being my old charger getting a little hot! You should check a website such as hobbyking were they are sold to be certain you are not putting yourself, or your RC's in danger.
Also, with that lipo... eeeehhhhhh. Good luck! I know i"m always very cautious with lipo's, life's, or lion's, but i have seen what one can do to many times before.
- Ethan.H
Also, with that lipo... eeeehhhhhh. Good luck! I know i"m always very cautious with lipo's, life's, or lion's, but i have seen what one can do to many times before.
- Ethan.H
07-24-2015, 09:26 AM
#6
For the longest life you should charge at 1C but for quick charge 2-3C would be o.k. Once you kill a lipo you will always have an issue with the damaged cell staying balanced. Mind the cut off voltage and you won't have a problem.
08-02-2015, 03:17 PM
#7
Senior Member
Thanks guys.
On another note, I think I was able to bring a battery back from the dead. My charger was giving me the low voltage warning...which meant I was down to 1 of 2 cells (at least that was the case with one of my other batteries). Anyways...put it a manual nimh charge at a very low amperage (I think 1.0 if I remember correctly) and the 7.4v rating. Let it charge for about 10 minutes, and then switched back to the LiPo setting. Charged properly without any errors after the short manual charge....wonder why that happened?
On another note, I think I was able to bring a battery back from the dead. My charger was giving me the low voltage warning...which meant I was down to 1 of 2 cells (at least that was the case with one of my other batteries). Anyways...put it a manual nimh charge at a very low amperage (I think 1.0 if I remember correctly) and the 7.4v rating. Let it charge for about 10 minutes, and then switched back to the LiPo setting. Charged properly without any errors after the short manual charge....wonder why that happened?
Usually, further testing will show that the over discharged cell has less usable capacity than the other cells in the same battery.
This means that the battery capacity and current capability are determined by the weakest cell.
