Go Back  RCU Forums > RC Airplanes > Beginners
Reload this Page >

Battery substitution

Community
Search
Notices
Beginners Beginners in RC start here for help.

Battery substitution

Thread Tools
 
Search this Thread
 
Old 07-14-2008, 03:38 PM
  #1  
cappaj1
Thread Starter
My Feedback: (1)
 
cappaj1's Avatar
 
Join Date: Jun 2008
Location: Rochester, NY
Posts: 939
Likes: 0
Received 0 Likes on 0 Posts
Default Battery substitution

Does anyone know if I can substitute this battery - https://www.all-battery.com/index.as...OD&ProdID=1827

for this one - http://www3.towerhobbies.com/cgi-bin...?&I=LXFE05&P=V ??

The voltage and dimensions are the same but one is NiCad and 1500 mAh and the other is Ni-MH and 4500 mAh.

I'm thinking it'll work because it's the same voltage and will just last longer. I need it for a glow starter - this one:
http://www3.towerhobbies.com/cgi-bin...?&I=LXJ802&P=7

and plan on using the wall wart that comes with it to charge the new Ni-MH. Anyone know if this should work?

Thanks.

Old 07-14-2008, 04:59 PM
  #2  
SBOT
Senior Member
 
Join Date: Oct 2005
Location: Tyler, TX
Posts: 140
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Battery substitution

It will work just fine. Wal-wart will charge it. Divide mili-amps of battery 4500 by output of wal-wart to get time needed for full charge. Should take about three times as long to charge, because it has three times the capacity of the standard battery.

good luck,
Oscar
Old 07-14-2008, 05:30 PM
  #3  
cappaj1
Thread Starter
My Feedback: (1)
 
cappaj1's Avatar
 
Join Date: Jun 2008
Location: Rochester, NY
Posts: 939
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Battery substitution

Thank you, SBOT! I've got charge leads for the glo-starter http://www3.towerhobbies.com/cgi-bin...?&I=LXL337&P=M
and a multiplex charger http://www3.towerhobbies.com/cgi-bin...&I=LXKSY1&P=ML which says it has a charge current of .1 to 5 amps.
Would it be safe to set it at 5 amps and if so how do you divide 4500mAh by 5 amps?
Old 07-14-2008, 05:48 PM
  #4  
The Ghost
 
The Ghost's Avatar
 
Join Date: Mar 2004
Location: UlladullaNSW, AUSTRALIA
Posts: 1,868
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Battery substitution

4500(bat) divided by 5000(charger at 5amps) = 0.9
60(1 hr) multiply by 0.9(see above) = 54mins

It should take 54 mins to charge 4500mah bat at 5amps.

Cheers
Old 07-14-2008, 06:10 PM
  #5  
cappaj1
Thread Starter
My Feedback: (1)
 
cappaj1's Avatar
 
Join Date: Jun 2008
Location: Rochester, NY
Posts: 939
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Battery substitution


ORIGINAL: The Ghost

4500(bat) divided by 5000(charger at 5amps) = 0.9
60(1 hr) multiply by 0.9(see above) = 54mins

It should take 54 mins to charge 4500mah bat at 5amps.

Cheers

Cool - I don't have to worry about overcharging them with too many amps, do I?
Old 07-14-2008, 09:15 PM
  #6  
Jetdesign
My Feedback: (8)
 
Jetdesign's Avatar
 
Join Date: May 2008
Location: Honolulu, HI
Posts: 7,056
Received 0 Likes on 0 Posts
Default RE: Battery substitution

Cappa, the Tower battery will last you for days FYI. The one at All-Battery is a high capacity output, I'm not sure if that's better or worse for a glow ignitor.

When I recharge my glow driver, I usually only have to replace 500-600 ma, and I fly WAY more than anyone else at my field in a single day. I have 1600mah ignitor battery.
Old 07-14-2008, 09:28 PM
  #7  
Missileman
Senior Member
 
Missileman's Avatar
 
Join Date: Feb 2006
Location: Poland, OH
Posts: 3,204
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Battery substitution

I wouldn't charge it at 5amps. The battery will get hot if you do and that really is not good for it.
I would suggest no more than 2amps tops. 1 amp is even better.
Old 07-14-2008, 09:30 PM
  #8  
RCKen
RCU Forum Manager/Admin
My Feedback: (9)
 
RCKen's Avatar
 
Join Date: Jul 2002
Location: Lawton, OK
Posts: 27,767
Likes: 0
Received 27 Likes on 24 Posts
Default RE: Battery substitution

I agree with Missleman. While you "can" charge it at 5 amps that doesn't mean it's the best for it. High current fast charges create a lot of heat in a battery as well as reduce the overall life of the battery. Plus, the more current you pump into a battery the more risk of failure and fire you have. Charge the battery at a lower amperage whenever you can.

Ken
Old 07-14-2008, 09:31 PM
  #9  
cappaj1
Thread Starter
My Feedback: (1)
 
cappaj1's Avatar
 
Join Date: Jun 2008
Location: Rochester, NY
Posts: 939
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Battery substitution


ORIGINAL: gaRCfield

Cappa, the Tower battery will last you for days FYI. The one at All-Battery is a high capacity output, I'm not sure if that's better or worse for a glow ignitor.

When I recharge my glow driver, I usually only have to replace 500-600 ma, and I fly WAY more than anyone else at my field in a single day. I have 1600mah ignitor battery.
I couldn't get the Sanyo battery from Tower, as they are on back order until September, so I searched for a replacement and the only ones All-Battery had were high mAh ones.
I ordered two different ones so I'll go with the lower mAh one for now.
Old 07-14-2008, 09:34 PM
  #10  
cappaj1
Thread Starter
My Feedback: (1)
 
cappaj1's Avatar
 
Join Date: Jun 2008
Location: Rochester, NY
Posts: 939
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Battery substitution


ORIGINAL: RCKen

I agree with Missleman. While you "can" charge it at 5 amps that doesn't mean it's the best for it. High current fast charges create a lot of heat in a battery as well as reduce the overall life of the battery. Plus, the more current you pump into a battery the more risk of failure and fire you have. Charge the battery at a lower amperage whenever you can.

Ken
Okay, thanks, Guys, that's the information I was looking for
So I figure at 1 amp it should take about 4.5 hours.
Old 07-14-2008, 09:38 PM
  #11  
Jetdesign
My Feedback: (8)
 
Jetdesign's Avatar
 
Join Date: May 2008
Location: Honolulu, HI
Posts: 7,056
Received 0 Likes on 0 Posts
Default RE: Battery substitution

ORIGINAL: cappaj1


ORIGINAL: gaRCfield

Cappa, the Tower battery will last you for days FYI. The one at All-Battery is a high capacity output, I'm not sure if that's better or worse for a glow ignitor.

When I recharge my glow driver, I usually only have to replace 500-600 ma, and I fly WAY more than anyone else at my field in a single day. I have 1600mah ignitor battery.
I couldn't get the Sanyo battery from Tower, as they are on back order until September, so I searched for a replacement and the only ones All-Battery had were high mAh ones.
I ordered two different ones so I'll go with the lower mAh one for now.
Gotcha.

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



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.