R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 04-13-2013, 03:58 PM   #181
Tech Elite
 
bvoltz's Avatar
 
Join Date: Jun 2005
Location: Bedtime with Teddi
Posts: 3,635
Trader Rating: 44 (100%+)
Default

In my search for a "cash box" to charge in, I did find at the local Meijer on clearance, a metal lunch box for 8 dollars... I purchased a Marilyn Monroe lunch box... So do not rule out the a metal lunch box. I will be using this for storage at home also....
__________________
Wheeling an Xray T4 and T4 14 using a Ko Propo, powered by EA motors and Speed Passion Speedo, paid for by my wife.

Digi3Dworks - 3D printing for the medical Field.
bvoltz is offline   Reply With Quote
Old 04-13-2013, 08:32 PM   #182
Tech Addict
 
Team Grid RC's Avatar
 
Join Date: Sep 2010
Posts: 631
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by bvoltz View Post
In my search for a "cash box" to charge in, I did find at the local Meijer on clearance, a metal lunch box for 8 dollars... I purchased a Marilyn Monroe lunch box... So do not rule out the a metal lunch box. I will be using this for storage at home also....
Be sure that it is made of steel or stainless steel and not aluminum. Aluminum has a melting point of 1200F, and what I have heard, a burning Lipo temp can reach 1000F. In a confined space, it could be higher.

For storage purposes, if it is made of aluminum, multiple bursting Lipos will surely melt it. For charging it may survive a single Lipo fire.

For storage I use several ammo boxes and spread out the Lipo inventory. This way, if a Lipo ruptures, it does not destroy your whole collection of Lipos.
__________________
www.GridRC.com
Team Grid RC is offline   Reply With Quote
Old 04-13-2013, 08:51 PM   #183
Tech Elite
 
bvoltz's Avatar
 
Join Date: Jun 2005
Location: Bedtime with Teddi
Posts: 3,635
Trader Rating: 44 (100%+)
Default

Quote:
Originally Posted by Team Grid RC View Post
Be sure that it is made of steel or stainless steel and not aluminum. Aluminum has a melting point of 1200F, and what I have heard, a burning Lipo temp can reach 1000F. In a confined space, it could be higher.

For storage purposes, if it is made of aluminum, multiple bursting Lipos will surely melt it. For charging it may survive a single Lipo fire.

For storage I use several ammo boxes and spread out the Lipo inventory. This way, if a Lipo ruptures, it does not destroy your whole collection of Lipos.
I just looked up the melting point... I guess I just wasted 8.00, rather this then the other option... Man I was so looking forward showing up to the track with my Marilyn Monroe lunch box....
__________________
Wheeling an Xray T4 and T4 14 using a Ko Propo, powered by EA motors and Speed Passion Speedo, paid for by my wife.

Digi3Dworks - 3D printing for the medical Field.
bvoltz is offline   Reply With Quote
Old 04-14-2013, 07:39 AM   #184
Tech Elite
 
bvoltz's Avatar
 
Join Date: Jun 2005
Location: Bedtime with Teddi
Posts: 3,635
Trader Rating: 44 (100%+)
Default

Question - How often are you balance charging?
__________________
Wheeling an Xray T4 and T4 14 using a Ko Propo, powered by EA motors and Speed Passion Speedo, paid for by my wife.

Digi3Dworks - 3D printing for the medical Field.
bvoltz is offline   Reply With Quote
Old 04-14-2013, 07:48 AM   #185
Tech Addict
 
Team Grid RC's Avatar
 
Join Date: Sep 2010
Posts: 631
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by bvoltz View Post
I just looked up the melting point... I guess I just wasted 8.00, rather this then the other option... Man I was so looking forward showing up to the track with my Marilyn Monroe lunch box....
Your Marilyn Monroe is probably big enough to also fit a lipo sack inside of it. You can double up a safety factor by doing that with style.
__________________
www.GridRC.com
Team Grid RC is offline   Reply With Quote
Old 04-14-2013, 07:49 AM   #186
Tech Addict
 
Team Grid RC's Avatar
 
Join Date: Sep 2010
Posts: 631
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by bvoltz View Post
Question - How often are you balance charging?
You should balance charge every time.
__________________
www.GridRC.com

Last edited by Team Grid RC; 04-14-2013 at 08:15 AM.
Team Grid RC is offline   Reply With Quote
Old 04-14-2013, 08:52 AM   #187
Tech Elite
 
bvoltz's Avatar
 
Join Date: Jun 2005
Location: Bedtime with Teddi
Posts: 3,635
Trader Rating: 44 (100%+)
Default

Quote:
Originally Posted by Team Grid RC View Post
You should balance charge every time.
Thanks - That is what I thought but wanted to verify....
__________________
Wheeling an Xray T4 and T4 14 using a Ko Propo, powered by EA motors and Speed Passion Speedo, paid for by my wife.

Digi3Dworks - 3D printing for the medical Field.
bvoltz is offline   Reply With Quote
Old 04-14-2013, 08:55 AM   #188
Tech Elite
 
bvoltz's Avatar
 
Join Date: Jun 2005
Location: Bedtime with Teddi
Posts: 3,635
Trader Rating: 44 (100%+)
Default

Quote:
Originally Posted by Team Grid RC View Post
Your Marilyn Monroe is probably big enough to also fit a lipo sack inside of it. You can double up a safety factor by doing that with style.
I agree and can. Just wanted to be safe at higher charging rates... I'm now looking for a stainless steal box. Even good cells can go bad... so no need for say 20 or 30 cost is a very small cost compared to the damage that could be caused by a bad cell showing up, with any battery...
__________________
Wheeling an Xray T4 and T4 14 using a Ko Propo, powered by EA motors and Speed Passion Speedo, paid for by my wife.

Digi3Dworks - 3D printing for the medical Field.
bvoltz is offline   Reply With Quote
Old 04-14-2013, 09:29 AM   #189
Tech Master
 
Mr RCTech's Avatar
 
Join Date: Dec 2005
Posts: 1,291
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by SS LS1 View Post
Does one high amp charge cycle refresh older packs for just that one discharge cycle only ? Or does one high amp charge lower the IR somewhat permanently so future 6-10 amp charging will also show improved output for awhile?
Yes.
A 6-10 amp charge will not improve the IR as a 20+ amp charge would do.
The lipo batteries respond to the higher charge rate better....

Cycling your lipos to lower the IR may work at lowering IR somewhat but doesn't lower the IR as a higher 20+ rate.
The 45 minute low charge rate must cool the pack down to much???

The 20 or higher amp charge decrease IR dramatically just on the first charge.

I did notice having a older lipo pack in store charge for a month discharge at a lower IR after being charged and run at a higher charge rate once.
So the cells seams to be getting better.

Don't know why, but it works...
Mr RCTech is offline   Reply With Quote
Old 04-14-2013, 09:35 AM   #190
Tech Master
 
Mr RCTech's Avatar
 
Join Date: Dec 2005
Posts: 1,291
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by bvoltz View Post
I agree and can. Just wanted to be safe at higher charging rates... I'm now looking for a stainless teal box. Even good cells can go bad... so no need for say 20 or 30 cost is a very small cost compared to the damage that could be caused by a bad cell showing up, with any battery...
Alot of guys will use a small Ammo can.
You can buy one cheap at a Army surplus store.
Mr RCTech is offline   Reply With Quote
Old 04-14-2013, 09:42 AM   #191
Tech Addict
 
Team Grid RC's Avatar
 
Join Date: Sep 2010
Posts: 631
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by Mr RCTech View Post
Alot of guys will use a small Ammo can.
You can buy one cheap at a Army surplus store.
Ammo boxes at home are ideal, but a steel Marilyn Monroe box looks better at the track!

Maybe skin makers can make wraps for ammo boxes so they could look nicer at a track.
__________________
www.GridRC.com
Team Grid RC is offline   Reply With Quote
Old 04-14-2013, 10:19 AM   #192
Tech Elite
 
LOW ET's Avatar
 
Join Date: Dec 2007
Location: cleveland, ohio
Posts: 2,805
Trader Rating: 96 (100%+)
Default

ammo boxes are the best choice.

Last edited by LOW ET; 04-14-2013 at 10:51 AM.
LOW ET is offline   Reply With Quote
Old 04-14-2013, 12:21 PM   #193
Tech Master
 
Join Date: Jul 2011
Location: Kaohsiung City, Taiwan
Posts: 1,571
Send a message via ICQ to JiuHaWong
Default

speaking of lipo boxes: http://www.liverc.com/news/special_f...inment_System/
JiuHaWong is offline   Reply With Quote
Old 04-14-2013, 12:35 PM   #194
Tech Master
 
DarthRacer's Avatar
 
Join Date: Sep 2003
Location: Charlotte, NC
Posts: 1,100
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by JiuHaWong View Post
That is pretty neat. Wonder what the retail is on those.
DarthRacer is offline   Reply With Quote
Old 04-14-2013, 12:57 PM   #195
Tech Master
 
Join Date: Jul 2011
Location: Kaohsiung City, Taiwan
Posts: 1,571
Send a message via ICQ to JiuHaWong
Default

Quote:
Originally Posted by DarthRacer View Post
That is pretty neat. Wonder what the retail is on those.
http://www3.towerhobbies.com/cgi-bin...P?I=LXCULN&P=8
JiuHaWong is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 6 (0 members and 6 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 06:13 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net