AA rechargable camera batteries- 1.2 v, 2400 mah/ cell - WattFlyer RC Electric Flight Forums - Discuss radio control eflight

Batteries & Chargers Discuss Li-P, Li-Ion, NiMh, Nicad battery technology and the chargers that juice 'em up!

AA rechargable camera batteries- 1.2 v, 2400 mah/ cell

Old 09-15-2006, 04:13 AM
  #1  
socal swimmer
student/athlete
Thread Starter
 
socal swimmer's Avatar
 
Join Date: Aug 2006
Location: san diego
Posts: 98
Default AA rechargable camera batteries- 1.2 v, 2400 mah/ cell

my dad bought some rechargable batteries for his camera. they were just standard AA batts, like you would find in the grocery store, cept they were nimh. i looked at them, and they had 1.2 volts + 2400mah/ cell. this kind of amazed me, considering as i have a 7 cell with 720 mah total. if i hooked up all 6 in series, i would theoretically get a 7.2 volt, 14.4 ah plane battery. what is the explanation between the difference between these and the plane batteries? i know that mine are AAAs, and these are AAs, but ive never heard of a 14ah nimh battery.
socal swimmer is offline  
Old 09-15-2006, 04:25 AM
  #2  
falingtrea
Member
 
Join Date: Sep 2005
Location: MN
Posts: 116
Default

Actually it would be a 7.2v 2400 mAH pack. Series packs change voltage, parallel packs change current.
falingtrea is offline  
Old 09-15-2006, 04:38 AM
  #3  
socal swimmer
student/athlete
Thread Starter
 
socal swimmer's Avatar
 
Join Date: Aug 2006
Location: san diego
Posts: 98
Default

oh... seiers means in a line, and parrallel is side by side? how do you keep parrallel cells from shorting?

so in my 7 cell pack that is 720 mah, every cell is 720 mah?

current = amp?
socal swimmer is offline  
Old 09-15-2006, 06:50 AM
  #4  
Kosh
Super Contributor
 
Kosh's Avatar
 
Join Date: Jan 2006
Location: Bothell, Washington (by Seattle)
Posts: 3,445
Default

Series means + to - in order to increase voltage to like 7.2
Parallel will give you more total mah but keep the same 1.2 volts.
I'm explaining this badly but look at the pic to get the idea.

Last edited by Don Sims; 09-15-2006 at 10:58 AM.
Kosh is offline  
Old 09-15-2006, 08:48 AM
  #5  
slipstick
Super Contributor
 
Join Date: Oct 2005
Location: N.Staffs, UK
Posts: 2,350
Default

The main characteristics of cells are voltage (e.g. 1.2V) and capacity (mAh). Note mAh is capacity. Current/amps are measured in A or mA i.e. no "h" on the end.

Parallel connection of x cells gives you the same voltage as a single cell but x times the capacity. Parallel means connect all the positives terminls together and all the negative terminals together.

Series connection of x cells gives you x times the voltage but the same capacity as a single cell. Series means connect positive of one cell to negative of the next cell and positive of that cell to negative of next and so on.

Steve
slipstick is offline  
Old 09-15-2006, 08:54 AM
  #6  
Kosh
Super Contributor
 
Kosh's Avatar
 
Join Date: Jan 2006
Location: Bothell, Washington (by Seattle)
Posts: 3,445
Default

Thanks Steve, Much better than my feeble attempt.
Kosh is offline  
Old 09-16-2006, 06:41 AM
  #7  
socal swimmer
student/athlete
Thread Starter
 
socal swimmer's Avatar
 
Join Date: Aug 2006
Location: san diego
Posts: 98
Default

ok thank you!

i think i understand a little better. if i gain a little every time, i'm getting somewhere and thats good.
socal swimmer is offline  
Old 09-16-2006, 06:58 AM
  #8  
Twmaster
Registered User
 
Twmaster's Avatar
 
Join Date: Aug 2005
Location: Dallas, TX, USA
Posts: 6,632
Default

Something to keep in mind. Those nice ~2300mA AA cells are just great at low current draw like in cameras and such but cannot typically deliver the >4C draw that many flight systems need.

I use 2300mA NiMH cells in my TX. I would never use these in my airplane(s).
Twmaster is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
TylerJCooper
Free Items
5
02-05-2009 04:07 AM
ed3
Batteries and Chargers Forsale/WTB
0
10-09-2008 04:44 PM
Crash Test Dummy
Aerial Photography
19
08-19-2008 11:11 PM
Kahuna
Batteries & Chargers
9
06-10-2008 07:12 PM
rcpilot.eu
New Product Announcements
0
09-19-2007 01:52 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Quick Reply: AA rechargable camera batteries- 1.2 v, 2400 mah/ cell


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.

Page generated in 0.06395 seconds with 13 queries