Batteries & Chargers Nicads, Nickel Metal Hydride, Lithium, LiPoly, Chargers, Cyclers, etc...

Batteries and Chargers

Reply
Old 05-23-2011, 10:05 AM
  #1
jasonnewyork
Thread Starter
 
Join Date: Feb 2011
Location: , NY
Posts: 4
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Batteries and Chargers

Last time I was in the hobby was 1991. I recently sold all my old stuff, and would like to get new. I'm leaning towards the Duratrax Evader EXT2 to get started.

My question is with batteries and chargers. Last I remember, we only had 1200mah Ni-Cds and 15 minute timer charges. I don't want to spend a lot, so plan on buying a ni-mh battery. I'm thinking of going with an Onyx 7 cell 3000mah, 6 cell is same price but less performance. What do you guys think?

As for chargers, is there a way to determine charging times? I see most of the lower end charges from Tower are in the 2-4amp range. How long would it take to charge a 7 cell 3000mah battery at 2, 3, or 4 amps? Does it take longer to charge a 7 cell battery over a 6 cell battery with the same mah capacity?

Also, how much run time should I expect with a 3000mah battery?



jasonnewyork is offline  
Reply With Quote
Old 05-23-2011, 01:23 PM
  #2
guver
 
Join Date: Mar 2003
Location: LaGrange, OH
Posts: 14,857
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Batteries and Chargers

I've always figured that if one was buying a charger and batt then going lipo was the best idea. The 7 cell 3000 is ok too. For charger currents it can be thought of like this:
2 amps = 2 ah (per hr)
3 amps = 3 ah (per hr)
4 amps = 4 ah (per hr) or (2 ah pre half hr) Twice as fast as 2 amps.

At the same current , the voltage of the pack is irrelavent. With some chargers you are interested in the current will be less on 7 cells than 6 cells thus making it slower..

guver is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 06:07 AM.