what might happen

[thisbme3]

So I have just the stock 7 cell 3000mah battery and a onyx 235 charger. What might happen if I were to set it to like 3500 mah? Just for a little added kick, or instead of kick would I have fire lol

[Jimmie Neutron]

The battery could explode from overcharging it.

[zippogeek]

LiPos are really meant to be charged at 1C. It's not worth risking a fire just to save a few minutes of charge time!

[Jimmie Neutron]

1) He is not charging LiPo's...
2) Setting mAh limits have nothing to do with C rate.
3) Not all LiPo's are limited to 1C charge rates. I have a set that is capable of 10C.

[zippogeek]

1) He is not charging LiPo's...
2) Setting mAh limits have nothing to do with C rate.
3) Not all LiPo's are limited to 1C charge rates. I have a set that is capable of 10C.

1. I read the OP a little too fast.
2. Not to Hijack the guy's thread...but as a rule of thumb, I've always charged a 5700 mah LiPo at 5.7 amps (for example). Isn't that 1C?
3. HOLY CRAP! Never thought that was possible...

[the finisher]

I've seen my son's 3000mah nimh take 3200 or so charge. I wasnt paying attention and stopped it as soon as I noticed it had gone over the limit. Nothing happened to the battery, it worked fineafter that, but I wouldn't recommend doing it intentionally. But I have heard of people charging a nimh to capacity say the night before they use it then right before they're going to use it the next day they throw it on the charger. Don't know if that's a good idea. But if you do some searching, you can find threads in it.

[Jimmie Neutron]

Zippo, I now realize my post could come off as rude... that definitely was not my intention.
Yes, a 5700mAh LiPo charged at 5.7 amps is 1C.

Forcing or fast feeding a NiMh used to be a good trick to get the edge on the competition for racing. It is very hard on a pack and I do not suggest doing it... the results could be hazardous.

[zippogeek]

Zippo, I now realize my post could come off as rude... that definitely was not my intention.
Yes, a 5700mAh LiPo charged at 5.7 amps is 1C.

Forcing or fast feeding a NiMh used to be a good trick to get the edge on the competition for racing. It is very hard on a pack and I do not suggest doing it... the results could be hazardous.

No offense taken! I knew what you meant, sir...

[Jimmie Neutron]

BTW... I don't really know if the pack can take 10C; that would be 76 amps and I surely don't have a charger capable of it. lol

[thisbme3]

Right on y'all guess ill just stick with what's safe. So 3amp charge rate to 3000mah is doing it correctly?

[Jimmie Neutron]

Bingo!
I have the capacity shut off turned off on my charger. If it is sensing delta peak properly, it should stop when the battery is full. I have noticed that some are taking more than what they are rated for... which is not a bad thing at all.

[mike-susieq1]

BTW... I don't really know if the pack can take 10C; that would be 76 amps and I surely don't have a charger capable of it. lol

You need the new icharger? What is the limit 60-80amps? Now that would be up your ally building a PSU for that but I think your set with your 78a 24 1800w setup for good charging maybe more voltage perhaps.

To op: I tries that doing .5 amps more and worked OK but don't recommend doing it OK it was with a NiMH a couple times but more with a nicd battery.

[Jimmie Neutron]

The new iCharger can dump 70 amps into a battery... most guru's suggest 30v/80a minimum... which is a 220acv supply.

[jamann]

There is a 48 v server supply that ksb showed me.wow that is some serious juice 40 amps a channel.i think I would prefer two pl6 instead of one dual charger,but just crazy power


Sent using lipo power

[Jimmie Neutron]

Dude... that is like bringing a plate of cookies to a Weight Watchers meeting and only letting them look at them!

What are the particulars on this 48v supply!!
Part number?
Brand?
Anything?!

[thisbme3]

Dude... that is like bringing a plate of cookies to a Weight Watchers meeting and only letting them look at them!

What are the particulars on this 48v supply!!
Part number?
Brand?
Anything?!

Lol too funny

[thisbme3]

OK so I'm a nitro guy so pardon this stupid question but if I got a 5000mah battle I would charge it at 5amps?
Now I've been told I can charge my 3000@4amps but I've always gone with 3. Would 4amps charge it faster or just make it get hot faster increasing the fire hazard?

[jamann]

Dude... that is like bringing a plate of cookies to a Weight Watchers meeting and only letting them look at them!

What are the particulars on this 48v supply!!
Part number?
Brand?
Anything?!

I can't get a link to work but 48v out 57 amps 3000 watts.still not enough for the dual 40a icharger.There are a bunch on ebay.


Sent using lipo power

[jamann]

Just wont do it for me
Here are some specs
HP 2950w 48v Power Supply for BL20p Enclosure 226519-001

[Jimmie Neutron]

OK so I'm a nitro guy so pardon this stupid question but if I got a 5000mah battle I would charge it at 5amps?
Now I've been told I can charge my 3000@4amps but I've always gone with 3. Would 4amps charge it faster or just make it get hot faster increasing the fire hazard?

To calculate a 1C charge rate:
mAh/1000=amps

Anything more is pushing the limits of the NiMh pack.
It will charge faster, but there are risks and drawbacks involved.


Thanks for the info, Jamann.
The shakes have subsided already.

[the finisher]

Bingo!
I have the capacity shut off turned off on my charger. If it is sensing delta peak properly, it should stop when the battery is full. I have noticed that some are taking more than what they are rated for... which is not a bad thing at all.

Well that's nice to know. Maybe I'll shut mine off and see what it does. I use a basic hitec x1.