New to Lipos

andrea.taras · Post by **andrea.taras** » Thu Dec 30, 2010 10:05 am

Ok, will follow the tip

Cheers!

andrea.taras · Post by **andrea.taras** » Wed Jan 12, 2011 2:37 pm

Today I got the 240mah LiPo and I was amazed to see how tiny it is

Only doubt I have is, how long is it gonna last if used with two 50:1 HP Pololu motors and this outrunner? Should be enough for like a few fights, right?

peterwaller · Post by **peterwaller** » Wed Jan 12, 2011 3:30 pm

I have been running my spinners with that brushless motor on 200mah lipo's and they last quiue a long time. Spinner fights tend to be short if you win or not.

andrea.taras · Post by **andrea.taras** » Wed Jan 12, 2011 4:48 pm

peterwaller wrote:Spinner fights tend to be short if you win or not.

ahah I never thought of that, actually

Thanks Peter

Gizz · Post by **Gizz** » Fri Jan 28, 2011 6:58 pm

Hijacking the thread for a minute:
A quick question about temperature and LiPO.

Im about to solder together my LiPo packs for the ants and I'm thinking about heatshrinking them for a good result.

The question is, will they be able to handle the temperature for the short time without damaging?

I've searched around the web a while now and i find they shouldn't exceed 60 degrees centrigrade (140F) or so but on another site it said if they are exposed to temperatures above 170 degrees F = 77C for over an hour they may take damage.
And the third site had some charger which stopped charging if they reached 91 degrees C / 196F.

Hence I'm not that sure what to do, the heatshrink i got shrinks at 80 degrees C / 176 F.

Andrew_Hibberd · Post by **Andrew_Hibberd** » Fri Jan 28, 2011 7:15 pm

You should be ok if you don't cook the lipos with the heat gun, just enough to shrink the wrap. The wrap shouldn't store much heat so the lipo won't get hot.

shakesc · Post by **shakesc** » Fri Jan 28, 2011 10:29 pm

Gizz wrote:
Im about to solder together my LiPo packs for the ants and I'm thinking about heatshrinking them for a good result.

Curious on what capacity you are trying to achieve if you need to solder the packs together. Can't you use a 2 cell something?

Shakey · Post by **Shakey** » Fri Jan 28, 2011 10:43 pm

Some people solder two single cells together to save weight and allow for better positioning within the robot.

Gizz · Post by **Gizz** » Fri Jan 28, 2011 11:05 pm

Yeah its 2 2-cell packs, 240mAh and 340mAh for my ants, just to more easily place them and secure them.

earthwormjim · Post by **earthwormjim** » Sat Jan 29, 2011 9:50 am

Gizz wrote:Yeah its 2 2-cell packs, 240mAh and 340mAh for my ants, just to more easily place them and secure them.

It sounds like you are wanting to connect 2 packs of different capacity???
"2 2-cell packs, 240mAh and 340mAh"
I foung this from an RC site when asking about connecting 2 2 cell packs..."Yes you can. But make sure the batteries are of the same brand, capacity, have the same discharge rate and preferably are from the same batch." on this site...http://rcpak.com/index.php/forum/9-foru ... t-a-4-cell.

If they are the same capacity,and I have mis read,then you could possibly use some ready made leads,if you have the space/weight...http://www.progressiverc.com/index.php? ... 4&Itemid=1
Hope it helps.
Jim