2s lipo problems


Old 03-07-2015, 05:58 PM
Tech Rookie
Thread Starter
Join Date: Mar 2015
Posts: 15
Default 2s lipo problems

i was driving my slash 4x4 with the castle sct 3800 combo and a bias 2s 25c 5000 and i jumped a snow bank and the battery literally just stopped working. still showing 3.7 in each cell. i used another battery to make sure it wasn't the esc its the battery. it wo.t connect to the charger but i can connect to lvm and reads7.4 all and 3.7/3.7 idk what happened some help would be great.
slash4x4sct91 is offline  
Reply With Quote
Old 03-07-2015, 06:13 PM
Tech Fanatic
iTrader: (2)
bash bros's Avatar
Join Date: Aug 2014
Location: Wisconsin
Posts: 854
Trader Rating: 2 (100%+)

Sounds like you just hit the low voltage cutoff.

Does it charge if you hook it up to the charger?
bash bros is offline  
Reply With Quote
Old 03-07-2015, 06:35 PM
Tech Elite
iTrader: (235)
Join Date: Sep 2009
Location: Central Wisconsin USA
Posts: 3,633
Trader Rating: 235 (100%+)

7.4 is not low voltage. Should be able to go down to 6.6 without issues unless cutoff is set higher. Sounds like the connection in the battery case or connector may have broke loose.
Check battery connector/wire.
Andy Koback is offline  
Reply With Quote
Old 03-07-2015, 06:52 PM
Tech Rookie
Thread Starter
Join Date: Mar 2015
Posts: 15

will not charge and wont do anything.idk whats going on. wires seem tight in there nothings loose.
slash4x4sct91 is offline  
Reply With Quote
Old 03-07-2015, 07:21 PM
Tech Master
iTrader: (118)
harry697's Avatar
Join Date: Mar 2009
Location: south jersey
Posts: 1,819
Trader Rating: 118 (100%+)

Sounds like a bad connection inside the pack. I had a 4S pack do that before. After a somewhat hard flat landing, it shut down. Charger wouldn't recognize the pack and it wouldn't power the esc, but all four cells would read on a stand alone balancer. Never did figure it out, but the only thing that made sense was a bad connection between cells inside the pack.
harry697 is offline  
Reply With Quote
Old 03-11-2015, 06:58 AM
Tech Elite
iTrader: (48)
lbenton's Avatar
Join Date: Aug 2012
Location: Fort Worth Tx
Posts: 2,132
Trader Rating: 48 (100%+)

what kind of plug is on it? Deans / Traxxas?

I would try to replace the plug to see what happens. The Balance lead is what is used to measure voltage, but they main plug is what feeds everything. Even if you voltage test at the plug you can still have a case where it is not making good contact with the male plug on the ESC or charger.

I ran into a lot of this once when I thought could save some $$ on knock off deans plugs.
lbenton is offline  
Reply With Quote

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
Trackbacks are On
Pingbacks are On
Refbacks are Off

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service