Jd101 Posted August 22, 2020 Share Posted August 22, 2020 So I brought 2 of these batteries and I'm using a Skyrc D100 charger. So they where in some sort of storage state and where about 30% charged. So today I tried to charge them to use tomorrow but after a 5 mins charging I noticed they both hit 57c(ish) I'm pretty sure they shouldn't get that hot but I'm not 100%. Quote Link to comment Share on other sites More sharing options...
Tug Posted August 23, 2020 Share Posted August 23, 2020 Charger definitely in lipo mode? What Current was charger set to? No, lipo cells should cool during charging, particularly if it's a 1C charge rate. Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 23, 2020 Author Share Posted August 23, 2020 Yup 100% The only thing I can think is it was warm in the house and I use a ammo box but I've charged other batteries in there with no issue. Maybe it could be my charger is faulty as the temperature was indicated on there and my cut off is set to 50c so it wasn't charging. The batteries where not hot to touch and have not balloned or vent. So not really sure to be honest. Maybe I'm charging them to high as within 10 mins it had charged from 30% to 50% but now has decreased to 45%. Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 23, 2020 Share Posted August 23, 2020 your settings on the charger look good to me, not sure whats up Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 Might just have to risk one, set my cut off to 60c and see what happens. Its in a ammo box so can only flmae or smoke through the vent holes Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 24, 2020 Share Posted August 24, 2020 (edited) 17 minutes ago, Jd101 said: Might just have to risk one, set my cut off to 60c and see what happens. Its in a ammo box so can only flmae or smoke through the vent holes make sure the seal on the ammo box is removed, none of my lipos heat up when charging. where did you buy the batteries and how much? edit : concerned they batteries may be faulty .... edit2: Edited August 24, 2020 by Yrkoon Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 I got them direct from killer rc and 60 dollars each. I've emailed them but I guess there out of office until tomorrow. Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 24, 2020 Share Posted August 24, 2020 3 minutes ago, Jd101 said: I got them direct from killer rc and 60 dollars each. I've emailed them but I guess there out of office until tomorrow. never heard of that site but something seems off, the cells in the batts or the charger, i wouldnt risk charging them inside a building does your charger charge other lipos fine? Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 (edited) I see good reviews on them but never know and yeah will be fine I got a fire extinguisher lol and yeah never had a issue Edited August 24, 2020 by Jd101 Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 24, 2020 Share Posted August 24, 2020 (edited) 6 minutes ago, Jd101 said: I see good reviews on them but never know and yeah will be fine I got a fire extinguisher lol and yeah never had a issue keep a bucket of saltwater handy just incase, if no issue before on the charger im guessing the cells are at fault, if i take a lipo straight out of something it is warm put it on charger and it cools down no lipo should be heating up on a charger Edited August 24, 2020 by Yrkoon Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 Yeah I've never really paid attention to them temps on my other batteries. But this I noticed cause it cut of the charge. And yeah maybe they've been stored for a long time.. Unfortunately only one way to find out! I'm going to see if they reply before I try anything Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 24, 2020 Share Posted August 24, 2020 (edited) 4 minutes ago, Jd101 said: Yeah I've never really paid attention to them temps on my other batteries. But this I noticed cause it cut of the charge. And yeah maybe they've been stored for a long time.. Unfortunately only one way to find out! I'm going to see if they reply before I try anything good that is a relief i am drunk and worried that your house was gonna burn down or something, just remember they contain hydrogen got a wee lipo volt tester? Edited August 24, 2020 by Yrkoon Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 Haha and yeah that's cool I got a powder extinguisher 1 Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 Thanks though 1 Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 I have a voltage tester and both cells in both packs are 3.8ish volts at 50% capacity Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 24, 2020 Share Posted August 24, 2020 1 minute ago, Jd101 said: I have a voltage tester and both cells in both packs are 3.8ish volts at 50% capacity hmmm not sure what to think now :) Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 I still can fit a 0.4 of voltage in each cell and can fit another 3600mah Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 24, 2020 Share Posted August 24, 2020 i really have no idea what to suggest now, hopefully guys that do will wake up soon Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 Haha no worries thanks man 1 Quote Link to comment Share on other sites More sharing options...
Tug Posted August 24, 2020 Share Posted August 24, 2020 If they weren't hot to the touch, then I wouldn't trust the charger temp reading. Disconnect that and charge away. I've never used that option. Quote Link to comment Share on other sites More sharing options...
Bajadre Posted August 24, 2020 Share Posted August 24, 2020 id agree with tug on faulty reading only time my lipos get hottish is after a hard run from the rc usually heat build up during charging is either plugs are on there way out or amps are too high. is the charger charging at 7.2amp? or lower? lower takes longer but will make your lipos last longer tbh Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 Yeah thanks guys and yeah was charging at 7.2amp. So going to try at about 5 amp. I'm sure I'll post the results here 1 Quote Link to comment Share on other sites More sharing options...
Jd101 Posted August 24, 2020 Author Share Posted August 24, 2020 Killer rc said to charge them at 1-3amps Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.