Peak charging...

leadfootedfool · #1 03-26-2004, 05:37 PM

Here's my peak charger setup for a super slick.

I took apart the charger, unsoldered the plug, then soldered the plug to a lead. Pretty simple.

First time charging at 1 amp for about 3 minutes gave a 15 minute run time.

leadfootedfool · #2 03-26-2004, 05:38 PM

pic of connector...

Rotary Freak · #3 03-28-2004, 08:47 PM

Interesting.

leadfootedfool · #4 03-29-2004, 10:42 PM

Thats a pretty old peak charger I've got. It's not really made for smaller batteries, its for 1/10 cars.

I just use the trickle function which is 400 ma.

To make a similiar charger, take apart the charger part of your controller and remove the plug. You could also go to radio shack and buy a similar plug.

Connect it to your battery charger and viola!

Peak chargers aren't cheap, for one that charges 1-8 cells, you're probably looking at $75-100 dollars, take a look at towerhobbies.com.

If you don't have a charger, I'd go to radio shack and buy a 800 ma ac adapter and wire that to the plug.

Go read in the bit section about stand alone chargers, there are better instructions there.

If you go with the ac adapter, get a multi voltage one so if you add more batteries you can flip a switch instead of buying a new adapter.

Also with the ac adapter be sure to time it for about 5 min, you don't want the batteries exploding.

About adding batteries, I don't think it'd be that hard, I'm thinking about doing that this week, I'll let ya know how it goes. I'm going to try and add one under the pcb.

Sorry for being long winded, hope this helps, I know it can be frustrating getting started.

Rotary Freak · #5 03-29-2004, 11:08 PM

SuperSlicks seem to be a scary platform to add an extra cell to, so I wish you success with your project. Keep us updated on how it goes. If it seems easy enough, one day I just might attempt it. For now, I think its plenty fast with the purple motor/gearing..but I always do like to aim for higher speed..

leadfootedfool · #6 03-29-2004, 11:32 PM

Is there a problem I should know about??

I don't think going from 2.4 to 3.6v should be a problem, but knowing my luck I'll fry the board.

leadfootedfool · #7 03-29-2004, 11:36 PM

Closer inspection, a 3rd cell won't fit under the pcb stock due to a capacitor and pot on the board.

leadfootedfool · #8 03-30-2004, 11:37 PM

You have to get a charger thats only slightly higher in voltage than your batteries.

Stock you'd need 2.4v so 3.0v would work. I'm not sure exactly what would happen with the 12v adapter, if you still had the receipt for your superslick, I might try it

leadfootedfool · #9 03-31-2004, 12:11 PM

You'll want a 3 volt adapter.

A 3v 120ma adapter would work, it'd probably just take a long time to charge.

If you get a 3 volt 800 ma adapter, it would probably take about 10 minutes to charge.

Basic equation:
V=IR

which is voltage=current*resistance

ma refers to milliamps, meaning 1000th of an amp

mah refers to milliamp hour, meaning capacity of a battery, that why the 200mah battery for bits gives a longer run time