Ni-Cd vs Li-Poly - RCCanada - Canada Radio Controlled Hobby Forum
RCCanada - Canada's Radio Control Hobby Forum
Electronics Discuss radios, chargers, etc...

Closed Thread
Thread Tools Display Modes
Old 06-24-2004, 12:42 PM   #1
RCC Senior Contributor
orenda635's Avatar
I am: Mike P
Join Date: Jun 2004
Location: Milton, Ontario

Feedback: 0 / 0%
Posts: 504
Total Props: 0
Ni-Cd vs Li-Poly

       Remove this ad - become a site supporter!
I've been flying R/C glow aircraft for about three years and I'm just starting to get into electrics. I'm building an electric 8% scale Piper Cub but I'm not sure what to power it with.

The model will be running a GWS IPS A motor with a GWS R4P reciever and two servos. The plans call for 6 120mAh Ni-Cds or 2 230mAh Li-Polys.

I've heard that the Li-Polys pack a lot of power into a small space but I've also heard that they can easily damage or even explode. Just wondering what the best power option is. I've attatched a picture of the model's interior.
Attached Thumbnails
Click image for larger version

Name:	cubupdate5.jpg
Views:	96
Size:	83.4 KB
ID:	3377  
orenda635 is offline   Quick reply to this message.

Sponsored Links - Subscribe to remove this ad.
Old 06-24-2004, 01:30 PM   #2
RCC Supreme Contributor
JimMcIntyre's Avatar
I am: Jim McIntyre
Join Date: Aug 2002
Location: Claremont Ontario
Radio of choice:
# of RCs: 999

Feedback: 1 / 100%
Posts: 4,345
Total Props: 1
I'm a big fan of LiPo but, like you said, they must be handled correctly.....

If you go LiPo, get a decent charger and be sure not to exceed the maximum output current or discharge too far..

I run a 2S pack in my GWS Tigermoth and I'm getting about 50 Minutes runtime!

I run a 2S pack in my Century Hummingbird (heli) and I'm getting over 20 minutes (used to get 4-6 minutes on the NiMH pack).

I'm finishing up a similar setup in a PT19 running 4 LiPo cells in parallel for longer runtime. I used to run NiCads (8X1600) with a lot more weight and a lot shorter runtime.

IMHO, Li-Poly is worth taking the added precautions.
MAAC# 12719
Si fractum non sit, noli id reficere - (If it ain't broke, don't fix it).
JimMcIntyre is offline   Quick reply to this message.
Old 06-24-2004, 01:40 PM   #3
RCC Junior Contributor
I am: Jean-Guy
Join Date: Mar 2004
Location: Dubreuilville Ont

Feedback: 4 / 100%
Posts: 237
Total Props: 0
well,go with lipo's U'l never look back.just make sure u read as much info as you can On lipo pack(the do's and dont)
I've been flying with lipo for the past 4 month and Im pretty Happy with them.For charging Im using charger called"BELL"Its good for 2,3 cell and cost $40,My setup is brushless Im using Apogee 830 3S pack,weight under 2 oz and get 15 min of solid flying,I also have 2 Ethec 1200 3s pack and get 23 min of flying time,this is agressive flying(3Dflying). You have to keep in mind that if you are not using a speed controller with auto cut off voltage,you will have to fly for like 5 min,land and check voltage untill you figure out how long U can fly on a charge.I beleave the 2S pack as to be ketp no lower then 6 volts.Mine is a 3S pack so the LCV is set to 9 volts.
I get all my stuff electric stuff at Zebrahobby,Exellent service

hope this helps

there is one stunt most of us aren't proud of
jeang is offline   Quick reply to this message.
Closed Thread

Quick Reply

Register Now

In order to be able to post messages on the RCCanada - Canada Radio Controlled Hobby Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Member names may only be composed of alpha-numeric characters. (A-Z and 0-9)

!!ATTENTION ADVERTISERS!! If you intend on advertising anything on this forum, whatsoever, you are required to first contact us here . Additionally, we do NOT allow BUSINESS NAMES unless you are an Authorized Vendor. If you own a business, and want to do sales on this site via posting or private message, you will need to follow the rules. Shops, Stores, Distributors, Group Buys without being authorized will see your account terminated.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Your Name
Your first name and last initial is required if you plan on using the forum.
Which city & province you live in. This is mandatory for classified listings.
Radio of choice?
Which radio is your current favorite to use?
Number of RC Vehicles?
How many boats, cars, planes do you own?


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

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

Thread Tools
Display Modes

Forum Jump

All times are GMT -5. The time now is 12:05 PM.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.