Fukuyama Batteries
#6226
Tech Elite
iTrader: (2)
Plus you said you're using fans while charging?? like fans blowing on the pack? If you're using this method of charging, don't. It will cause the cells to be overcharged due to the charger will not detecting a peak and drop in voltage at the right time.
The results of this is a cool cell casing (outside of the cell) but the chemicals are boiling on the inside of the cells. This will result in a higher peak voltage reading as well. It can also cause cell damage and in the worst case a cell venting or exploding.
Go to www.fukuyamaracing.com for more info and tips on charging/discharing fukuyama GP3300 cells.
John
The results of this is a cool cell casing (outside of the cell) but the chemicals are boiling on the inside of the cells. This will result in a higher peak voltage reading as well. It can also cause cell damage and in the worst case a cell venting or exploding.
Go to www.fukuyamaracing.com for more info and tips on charging/discharing fukuyama GP3300 cells.
John
#6227
Tech Regular
fans
so dont use the fans while charging but they will get hot the over heat
#6229
what about on tropical climates? here in asia it the weather tends to get really hot.
you guys wouldnt use fans cause its cold where you are. over here its hot so arent fans ok?
you guys wouldnt use fans cause its cold where you are. over here its hot so arent fans ok?
#6230
In hot, outdoor temps (like when I was at a parking lot race in Memphis, TN last July and the track temp was around 150,) I decrease my voltage peak slightly to let the cells come off a little cooler. Worked for me.
Rob
Rob
#6231
Tech Champion
iTrader: (17)
San Diego- Cold? Until yesterday when it started raining, we were having 75 degree days. Summer time temps get into the high 90's and 100+. We also race in the high desert in Hesperia. 100+ is not uncommon. Like Rob said, if the cells are getting too hot during charge, your delta peak voltage is too high and needs to be lowered. The cells should be around 130F when they peak. If they're higher, lower the delta so they peak off sooner.
#6233
Sorry to hijack your thread, John. Just couldn't control myself.
Rob
Rob
#6237
Yeah, Jon, what's with the #8?
Thanks for not giving me the cold shoulder, you guys. lol. I'm always lurking.
Hope your Christmas' were good and have a wonderful New Year.
Oh yeah, if you make it out this way to see family, bring your stuff. Make sure to grab a Monster Stock/19T and some TakeOff 22's and you'll have a handful of places to race near El Reno. I'll meet you where ever's closest.
Rob
Thanks for not giving me the cold shoulder, you guys. lol. I'm always lurking.
Hope your Christmas' were good and have a wonderful New Year.
Oh yeah, if you make it out this way to see family, bring your stuff. Make sure to grab a Monster Stock/19T and some TakeOff 22's and you'll have a handful of places to race near El Reno. I'll meet you where ever's closest.
Rob
#6239
Tech Champion
iTrader: (17)
JR is the man! I'll talk to some relatives and see about a trip this coming summer. Maybe even get them to come to the track. Last time I was out there was summer 2003 right after the Reedy Race and I didn't even think to look for any tracks in the area until the last day we were there. (We were a little preoccupied with the reason for the visit) I'll let you guys know what's up.
#6240
Tech Elite
iTrader: (32)
Enid RC Speedway is the best onroad track in the state. Its like a little over an hour from El Reno.