Peak Char-G'd!

[bdebde]

I was going to try that too. I have a Tekin BC112C peak charger for my 1/10th scale. Great to hear it works so well!

[was ist los?]

hey tiny, are you using a novak millenium?

[tinyrc]

Originally posted by actofgod
Can you simulate the effects of charging with the controller to find out how long you have to charge to *really* reach capacity?

Good question - I think the thing to do here would be to have one of our electronics guru members figure out what the exact charging rate is on the controller?

Btw, I added pics here:

http://tinyrc.com/gallery/trcprojects

[tinyrc]

Originally posted by was ist los?
hey tiny, are you using a novak millenium?

Nope, Indi 16x4-Pro.

I gave this a whirl with my supernova. Wild Great power and runtime. I imagine the runtimes should pick up a bit too as we were only using a small portion of the battery for quite a while.

[bdebde]

I tried the peak charge. Right on! Running a Zip Zap with the no reverse mod, red gears, red motor. It does powerslides, runs on (low) carpet, even gets up on two wheels (same side, no wheelies). Run time is a good 45 minutes with the stock 100mah ZZ battery and has more punch. The charge rate of .5 amp may be a bit high for these little cells, I charged at .3 amps with the same rusults. Higher charge rates can shorten cell life.

[tinyrc]

Test Results are In:

Using two cars, both with 1.0s (since I wasn't sure if running for hours straight might burn the motors out!), one with a stock TOMY cell, and one with a TinyRC.com 150mAh NiMH:


50mAh NiCad
Charge Time: 10 minutes
Capacity: 78mAh
Runtime: 44 minutes!!


150mAh NiMH
Charge Time: 20 minutes
Capacity: 174mAh
Runtime: 2 hours, 14 minutes!!!!!!!!!!!!

That's enough to do 6 1/64th scale 24H of Lemans in a row w/out stopping for gas!!!

[HO502cid]

Originally posted by tinyrc
Test Results are In:

Using two cars, both with 1.0s (since I wasn't sure if running for hours straight might burn the motors out!), one with a stock TOMY cell, and one with a TinyRC.com 150mAh NiMH:


50mAh NiCad
Charge Time: 10 minutes
Capacity: 78mAh
Runtime: 44 minutes!!


150mAh NiMH
Charge Time: 20 minutes
Capacity: 174mAh
Runtime: 2 hours, 14 minutes!!!!!!!!!!!!

That's enough to do 6 1/64th scale 24H of Lemans in a row w/out stopping for gas!!!

WOW! Thanks for the detailed write up. When did you find 2 hours and 14 minutes to run the car?

[Clint]

2+ hours!!!!awesome findings.


i have a rayovac nimh/nicd charger that stops when the battery is charged(AA/AAA usually 3-4 hours..less if it still has a charge).

i will throw one of the 150ma batts in there and check it out..
if this works..then we have a 12 dollar charger you can get anywhere.

[mbartell]

I have one of these chargers too. Are you planning on making an adapter that allows you to charge just the battery, or are you going to put in a pad-type charger? all you would need is a battery sizes patform with acontact on each end. this would be really slick for the multi-cell set ups.

[Clint]

i charged a spare 50mA nicd in the rayovac charger today...took 12 minutes to charge..didnt even get that warm...lasted about 40 minutes(seemed like forever)

will have to try a 150mA nimh tomorrow.

[actofgod]

great.. I have a rayovac charger too.

Clint, how did you get the 1/3AAA to fit in the charger? Just use a strip of metal on one side or what?

[Pojo]

holy crap.....damn all of you smart scientists....

[FMZPLAYER1]

I just measured the charge current from a Z-car charger (funny pod thing) at 0.88amp /45 sec time, using energizer alkaline AAA's.
That will run my car for 4.5 mins with the yellow 2.2 motor on a tile floor. If I charge twice, I get about 7-8mins, and the car has more torque too.

From my calculations, each charge would give the batt 11maH
If my Z-car ran 4 mins on that, that would mean it was taking about 165mA to finish off that one charge in that 4 min run time.
(average current drain for the run, steering being used maybe 1/4 of the time, oval course, bumpy tile floor)

So if my 100mA batt was fully charged, and I ran it the same way (using 165maH driving/steering), It should, in theory, run for 36.3 mins.

My charger would have to give 9-45 second charges (6.81mins at 880mA) to reach the 100ma capacity-- Of course the batt would probably fry from such a high charge rate if done all in one session

Maybe some of this might help others figure out what their cars draw from their batts (I did all this calculating since I couldn't directly measure the car's current drain)

I think the RF receiver circuits must draw somehere around 10 mA, since one charge will take an hour or more to "fade away".

[Eurallis]

Sup, just thought I could do my part to help out.
I too have a Rayovac Ni-Cd/Ni-Mh/Rechargeable Alkaline Charger
(Model No. PS1, which now seems to be replaced with another charger for the same no.) Anyways this is the charger I own and
like above mine has a microprocessor and charges to the peak.

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=1941358755

I took out my stock 50 mah battery for this test and I really don't
know what to think about the results compared to the other
people's findings, so here are mine.

14 min run time (didn't time the charger), unknown charge left in
the battery
13 min 45 second charge time
14 min 35 second run time

Now you can see why I'm not sure what to think, great run time,
but at a long charge time cost. So Clint I would really like to know
what type of battery and particular charger you are using, thanx.

Maybe this may help...back of the charger reads input: 115v 60hz
(8w) output: dc 2v 200ma X 4.
I took photos of the whole setup and will upload them later.