Dave H

That's fair, thanks for the reply.

EAMotorsports

iTrader: (79)

It does a 1S pack at the full 45 amps and a 2S pack at 35 amps. It will discharge a full pack no problem at all. Takes about 10 minutes or so depending on the mah of the packs. 1S is a little quicker due to the higher rate.

EA

LonnyJ1950

EA- I can't find the unit you're using. Do you have a link?

Lycan

iTrader: (1)

http://www.racersmeasurementsystems....r-Dumper-W.htm

Could be this?

LonnyJ1950

Looks right, thanks. They have several nice toys I could use.

RC MARKET

iTrader: (12)

ICharger
308DUO or 4010DUO

EAMotorsports

iTrader: (79)

Yep thats it! The resistance and rotor meter are the best on the market besides super expensive lab equipment.

EA

gcooper

I was wondering why everyone is using external dumpers?
Are you just trying to avoiding putting heat in the charger?

fq06

iTrader: (12)

I am OK with discharging at 6 or so amps but I get it, after a race day getting home at 10 or later being able to discharge to storage voltage quickly would be nice.
It doesn't take hours but it takes 10 -15 minutes per pack to get to storage if their still full so I may be 45 to 60 minutes till I can crash out.

I don't like leaving packs outside of storage voltage for long so most of the time I put them on storage when I get home..

theproffesor

iTrader: (66)

Ok so I purchased an iCharger 206b. It charges great at 20a, but discharge is another story. I set it on 20a, but it wont go past 1.8 while actaully discharging. Has anyone else ran into this kind of issue?

fq06

iTrader: (12)

Try it on a fully (or close) charged pack. You may have been close to storage voltage already so it didn't get to a high amperage discharge rate.

With my PowerLab even if I set it to 10a I will only see 6 or so amps when just using the charger itself. To get more than that I would need to hook up to a car battery for a regenerative discharge.

Dave H

The 206B is limited to 20 watts of discharge power on it's own. Need to set up a regenerative or external discharge to get any higher.

theproffesor

iTrader: (66)

What is a regenerative discharge?

Dave H

Regenerative is when you use a large enough not fully charged lead acid (auto) battery (or multiples) for the power source, and the charger basically runs in reverse, discharges the RC battery into the lead acid(s). 206B can go to 300 watts that way.

External uses a properly sized external resistor bank, maybe a light bulb setup, etc, to dissipate the energy. Can get to 500W.

Obsidian

iTrader: (10)

What is a typical storage voltage for a Lipo?