nicobie
100 MW
methods said:I hope to bring in a load of these cheap enough to undercut Hobby King with a higher quality product.
-methods
Now you're talking.
Can this be possible?
Suggested Method for Charging: Bulk + Cell Level
- Thread starter methods
- Start date
Now you're talking.
Can this be possible?
dougnutz
100 W
- Joined
- Oct 27, 2010
- Messages
- 138
I'm no pro when it comes to Lipo, but I think the hardest part about the chemistry is making all the decisions. It took me months reading threads and specs trying to decide what to do. In the end I bought a cheap balance charger (imax6) with a wall plug so I don't need to manage tracking down my power supply and a bulk charger set to my pack voltage.
I have found bulk charging is extreamly reliable. I monitor my pack for balance but I have found that after 6 weeks, commuting 5 days a week, the furthest any cells have drifted is .04v.
Of course I do run cell level protection, but charging couldn't be easier.
I think a tread like this should end up resulting in a wiki page that hase a couple of suggested methods.
I have found bulk charging is extreamly reliable. I monitor my pack for balance but I have found that after 6 weeks, commuting 5 days a week, the furthest any cells have drifted is .04v.
Of course I do run cell level protection, but charging couldn't be easier.
I think a tread like this should end up resulting in a wiki page that hase a couple of suggested methods.
methods
1 GW
This allows margin for imbalance.
If you set the bulk charge to 4.2V / cell then whatever cell imbalances you have will be forced to develop over your highest cell/cells. By setting the bulk charge to 4.1V you can have huge imbalances among the cells and still not overcharge your highest cell.
I bulk charge to something like 4.18V - but I also dont really care if my cells hit 4.25V... it is not like they are going to burst into flames and instantly stop cycling By the time I get the cycles out of a pack that I expect to get I am already totally bored with them and ready for newer stuff.
But I am the kind of guy who likes to play with my toys until they break.
I do understand that some people like to keep their toys in the box looking pretty. Nothing wrong with that.
-methods
If you set the bulk charge to 4.2V / cell then whatever cell imbalances you have will be forced to develop over your highest cell/cells. By setting the bulk charge to 4.1V you can have huge imbalances among the cells and still not overcharge your highest cell.
I bulk charge to something like 4.18V - but I also dont really care if my cells hit 4.25V... it is not like they are going to burst into flames and instantly stop cycling
By the time I get the cycles out of a pack that I expect to get I am already totally bored with them and ready for newer stuff. But I am the kind of guy who likes to play with my toys until they break.
I do understand that some people like to keep their toys in the box looking pretty. Nothing wrong with that.
-methods
fractal said:
parabellum
1 MW
Simply said, if 10 of you cells are 4.18 than 1 is 4.40. It can be the case of 11 cell system by 4.2 bulk charge.
fractal said:
