| |
| |||||||
 |
| | LinkBack | Thread Tools | Display Modes |
03-04-2007, 10:42 AM
| #1 |
| Rock Crawler Join Date: Feb 2004 Location: Near Pittsburgh, PA
Posts: 911
|  Unsolder and change configuration Question
I just found two 7 cell packs that I got with an E-maxx I bought several years ago. They are 2400mah Sanyo cells...NiCds I assume since they are older. My question, will it hurt to unsloder them and group them differently? They are set up as 6 cells side by side and the 7th is off to the side. I want to do sort of a pyramid pack to mount on the front servo. ANY SAFETY ISSUES I SHOULD BE AWARE OF? I've never done any battery soldering work. |
|  |
| Sponsored Links | |
| | |
|
03-04-2007, 10:48 AM
| #2 |
| I'm a stupid C U N T! Join Date: Jun 2005 Location: In the Garage!
Posts: 4,307
|
you want to have some sort of battery holder so the cells will stay while youre sloldering them, you want to tin the cells before you install the bars, then, when you go to finish the soldering you want to watch out for over heating your cells
|
|
| |
|
03-04-2007, 10:56 AM
| #3 | |
| Rock Crawler Join Date: Feb 2004 Location: Near Pittsburgh, PA
Posts: 911
| Quote:
By tinning you mean a little bit of solder on them, right. I was thinking that when I unsolder they will already be tinned but I can add more. Also, I should only have to solder a couple of the cells. Basically split in half and solder in the pyramid formation. Is it necessary to put an ice pack or something around the cell or should I just be quick about the soldering to avoid too much heat? THANKS! | |
|
| |
|
03-04-2007, 11:18 AM
| #4 | |
| Rock Stacker Join Date: Feb 2007 Location: Denmark
Posts: 91
| Quote:
| |
|
| |
|
03-04-2007, 11:40 AM
| #5 | |
| Rock Crawler Join Date: Feb 2004 Location: Near Pittsburgh, PA
Posts: 911
| Quote:
I'm charging one now just to see what it will take. It also looks like it will be hard to fit them on the servo since they are C size unless i totally rip the pack apart and even then it will be tight. I tried an 8.4v pack and was really thrilled with the extra power over the 7.2v so when I found these I thought I had hit the jackpot. We'll see, if it don't work no loss! | |
|
| |
|
03-04-2007, 11:58 AM
| #6 |
| I wanna be Dave  Join Date: Oct 2006 Location: Milwaukie OR
Posts: 2,078
|
Nicads will last like forever(not literally) on the shelf if they're drained before each charge. The newer Nimh's will lose charge and just life after a year or 2 on the shelf.... not Nicad's
|
|
| |
|
03-04-2007, 12:08 PM
| #7 | |
| Rock Crawler Join Date: Feb 2004 Location: Near Pittsburgh, PA
Posts: 911
| Quote:
I have a 3000mah NiMh that I bought from you about 2 years ago. I used it the first year and it sat all last year. Now it won't charge for more than a minute and a half...and only runs for less than 15 minutes. Some said to trickle charge overnight, but either my Pirahna Digital peak charger won't trickle charge or I don't know how to set it up. Can I use my old charger that is NiCd only to try and trickle charge my NiMh? Hate to think this battery is shot with such little use! | |
|
| |
|
03-04-2007, 12:29 PM
| #8 |
| Quarry Creeper  Join Date: Jan 2007 Location: wilkes-barre
Posts: 313
|
I dont abou piranha but my M Peak you just dont press the start button and it will trickle at .25 amps
|
|
| |
|
03-04-2007, 02:35 PM
| #9 |
| Pebble Pounder Join Date: Oct 2006 Location: raleigh, nc
Posts: 135
|
The Pirahna automatically goes into trickle charge after a peak charge if you don't touch anything after the peak finishes... unless you changed the settings... I think you also set one of the user programs to do a trickle charge... |
|
| |
|
03-05-2007, 09:00 AM
| #10 |
| Rock Crawler  Join Date: May 2006 Location: Surrey, BC, Canada
Posts: 870
|
Trickle charge is just a super low amp charge... I have a Piranha, too, and will be charging some new packs I got the other day... A pair of Intellect 3600's and an SMC 1400MaH RX pack... I'm gonna charge 'em up at 1/10C.. In other words, 1/10th the capacity of the pack until it's charged... That's equivalent to trickle charge.. Just set your charger output rate to 1/10 of the pack... 3000 = charge at 300MaH or 0.3A... It'll take a few hours, but, it'll get the job done... Try that...
|
|
| |
|
03-05-2007, 12:13 PM
| #11 | |
| Rock Crawler Join Date: Feb 2004 Location: Near Pittsburgh, PA
Posts: 911
| Quote:
I can only set it for 200MaH, but even at that, I cannot seem to get it to trickle charge! After it "peaks" and it is supposed to trickle, it seems like it just stops. I followed the instructions but something just seems wrong. | |
|
| |
|
03-05-2007, 01:06 PM
| #12 |
| Rock Crawler Join Date: May 2006 Location: Surrey, BC, Canada
Posts: 870
|
Sounds like the trickle has been turned off... If I recall, that's in the user set-up to turn that on and off... It's been a while since I set-up the chager, so, I'm not exactly sure how and where to turn trickle on and off... I do have to reprogram for the new packs I got, so, I may find it there... I found the manual online if you want to read it and get it friect from the horses mouth, so to speak... http://manuals.hobbico.com/dtx/dtxp4005-manual.pdf That'll explain how to turn on the trickle and so on... This particular charger goes into trickle mode as soon as it's done the peak cycle by default... Sounds like it's been turned off... Check that manual out... I lost my paper one and I'm gonna save the PDF in the link... But the trickle is settable for 0, 100 and 200MaH... Try the 100 setting... That's default as I didn't play with the trickle on mine at all... |
|
| |
|
03-05-2007, 01:32 PM
| #13 |
| Rock Crawler Join Date: Feb 2004 Location: Near Pittsburgh, PA
Posts: 911
|
Thanks for the help. I did download that a couple years ago when I got the charger used. I'm trying it on the Auto setting to see if maybe that helps. |
|
| |
|
03-06-2007, 09:21 AM
| #14 |
| Rock Crawler Join Date: May 2006 Location: Surrey, BC, Canada
Posts: 870
|
That might be a good idea... I did the first charge on one of my 3600's, finally peaked about 3am, and I shoulda used Auto for the battry capacity as it stopped at 3600... Now I know it'll take more... So when I do the other one, I'll leave that one on auto and see what it does when that one finishes and use that for the pack settings...
|
|
| |
|
| |
Linear Mode
