RunRyder RC
 2  Topic Subscribe
WATCH
 1 page 486 views POST REPLY
Scorpion Power Scorpion Power
12-31-2009 07:15 AM  7 years agoPost 1
LonR

rrElite Veteran

Macomb,Mi

My Posts: All  Forum  Topic

What voltage should a fully charged 4.8V battery be at?

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-31-2009 08:23 AM  7 years agoPost 2
dickallen

rrNovice

Ireland

My Posts: All  Forum  Topic

Around 5.4 Volts
Dick

PM  EMAIL  Attn:RR  Quote
12-31-2009 09:41 AM  7 years agoPost 3
RaptorMan23

rrKey Veteran

Sioux City, IA

My Posts: All  Forum  Topic

Yeah 5.4v right off the charger but it will settle around 5.3
Some are different though, mine are usually 5.6 off the charger

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-31-2009 10:27 AM  7 years agoPost 4
LonR

rrElite Veteran

Macomb,Mi

My Posts: All  Forum  Topic

Thanks for the replys guys,I think I need to program my charger because it pulse charges and went to 5.8V.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-31-2009 10:46 AM  7 years agoPost 5
red_z06

rrProfessor

Dumont, NJ

My Posts: All  Forum  Topic

While the source set to 5.4v will charge a pack to 5.4v eventually, it requires higher source voltage to push electrons to charge a pack.

Higher the current, higher the differential voltage is required to charge.

So, the charger going to 5.8v or even above 6v is normal. After the source is removed, pack should settle at 5.3-5.4v

Voltage is equivalent to pressure.
Charging is much like connecting two water tanks with a thin pipe connecting them. Even a tiny difference in height (pressure diff.) will cause the water to flow from high to low until equal. But, that flow will be ever so slow. In order to increase the flow, one needs to increase the water to a higher level to increase flow (current).

www.JustinJee.com

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-31-2009 10:57 AM  7 years agoPost 6
LonR

rrElite Veteran

Macomb,Mi

My Posts: All  Forum  Topic

Thanks for letting me know that red_z06 because I "thought" I had to set my charger up to stop at 5.4V.I'll let the battery charge tomorrow but keep a eye on it to be sure it stops at 6.0V.Thanks once more .

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-31-2009 11:13 AM  7 years agoPost 7
red_z06

rrProfessor

Dumont, NJ

My Posts: All  Forum  Topic

Packs with lower internal impedance will charge at higher rate than one with high. This can be thought as having fatter straw vs skinny straw.

NiMH typically have higher impedance than NiCD counterpart of the same capacity, so you will see the charging voltage go higher on NiMH than NiCD. Since every pack chemistry is different, try charging it at 1/4C and stop it when it gets warm if your charger isn't detecting the peak properly.

Peak detection is a method that charger uses to determine full. NiCD and NiMH voltage will rise as it is being charged. However, at full capacity, the voltage will actually drop. So the charger will stop charging every minute or so and acutally record the pack voltage. It keeps comparing two adjacent recordings and continue to charge when the latest is higher. When it detects that the latest is lower than previous, charger will stop charging.

www.JustinJee.com

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-02-2010 12:11 AM  7 years agoPost 8
LonR

rrElite Veteran

Macomb,Mi

My Posts: All  Forum  Topic

Thank you soooo much red_z06 for the write up and the charger stopped at 6.3V .What my problem was,I never had a good charger and I was allways used to charging my NiCad/NiMh batterys with a Vision Peak 2 charger which workes perfect.It has the 4 red flashing lights and 1 green one when its fully charged.My new charger (Imax B6) shows voltage and how many mAh is put back in.I allways thought the battery was fully charged at 4.8V so when my new charger showed 5.8V I got a little worryed haha.I cycled the battery twice now and the charger stopped at 6.3V,I have alot to learn with this new digital charger lol.Thanks once more .

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
WATCH
 1 page 486 views POST REPLY
Scorpion Power Scorpion Power
 Print TOPIC  Make Suggestion 

 2  Topic Subscribe

Thursday, October 19 - 7:27 pm - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online