Who charging 20+ amps or more now??
#301
Tech Champion
iTrader: (4)
LiPos are very safe when used within normal safe parameters. If you leave packs unattended, use poor quality chargers, if you repeak fully charged packs at 70A or charge to a 4.5v cut off all the time you are asking for trouble.
#302
Tech Rookie
Think of all the devices you have that have Li-Po bat's... cell phones, tablet's,lap-tops even electric cars run on Li-Po's. The problem with Li-Po's is incorrect handling, pure and simple
#305
Tech Elite
iTrader: (109)
This one below (maxamps)
This 24v power supply is a beast! It can handle multiple high end chargers at one time with up to 1150 watts! If you need the best rc power supply for all those amp hungry chargers, pick up this MaxAmps.com 24v to supply all your power needs.
•100v-240v AC Input Voltage
•24.3v DC Output Voltage
•47A Continuous Output Current
•1150W Output
•11" x 4.5" x 3.125" dimensions
•6.5 lbs
•Short circuit and over-voltage protection
•Heavy duty metal cabinet
•1-year guarantee
This powerful and easy to use power supply will work perfectly with the Cellpro PowerLab 8 Charger and all Hyperion DC Chargers requiring a heavy-duty power source.
Note: This power supply comes with two power cords. Both need to be used to achieve 24V. In addition, you have the flexibility of using it as a 12v power supply by only powering the negative(black) side of the unit.
This 24v power supply is a beast! It can handle multiple high end chargers at one time with up to 1150 watts! If you need the best rc power supply for all those amp hungry chargers, pick up this MaxAmps.com 24v to supply all your power needs.
•100v-240v AC Input Voltage
•24.3v DC Output Voltage
•47A Continuous Output Current
•1150W Output
•11" x 4.5" x 3.125" dimensions
•6.5 lbs
•Short circuit and over-voltage protection
•Heavy duty metal cabinet
•1-year guarantee
This powerful and easy to use power supply will work perfectly with the Cellpro PowerLab 8 Charger and all Hyperion DC Chargers requiring a heavy-duty power source.
Note: This power supply comes with two power cords. Both need to be used to achieve 24V. In addition, you have the flexibility of using it as a 12v power supply by only powering the negative(black) side of the unit.
#307
Tech Champion
iTrader: (22)
If someone unsoldered motor wires running 1s they are clueless. They had to have been running open mod with 20g wires overgeared with boost or something. I race on a high grip carpet track with some very fast guys. The hottest I have ever run a motor was 175 deg F when I ran too much gear and timing. I have seen motors hit 200 deg F when a guy over geared, commented how terrible the motor was running and continued to run 6-7 minutes anyways....
Yeah open mod with boost on a carpet track... It happens...even to clueless national champions.
#308
#309
Interesting enough, I believe that the batteries that Boeing has had fires with are Lithium Ion.
#310
Common practice is to solder female bullet connectors to the power supplies, use 4mm for the 12V side and 5mm or 5.5mm for the 24V side. This way you won't fry a charger that can not handle beyond 18V. Also the 5/5.5mm bullets have lower resistance for the higher current draws.
#311
Tech Champion
Cold solder joint. Sadly way too common, seen it happen to some of the best. A proper solder joint doesn't melt until around 360-370 F. A small amount of paste flux is your friend, and do not let the joint move before solidifying.
#312
Without throwing stones at racers that have gotten injured lets just say that, when you look closely, every LiPo fire recently discussed has some form of user error or intentional risky behavior associated with them.
LiPos are very safe when used within normal safe parameters. If you leave packs unattended, use poor quality chargers, if you repeak fully charged packs at 70A or charge to a 4.5v cut off all the time you are asking for trouble.
LiPos are very safe when used within normal safe parameters. If you leave packs unattended, use poor quality chargers, if you repeak fully charged packs at 70A or charge to a 4.5v cut off all the time you are asking for trouble.
so why in the world would we not want to use a battery chemistry that is totally incapable of meltdowns and fires?
#313
Tech Initiate
I always do 10 Amps Myself
#314
#315
If you always use a Lipo bag or Locker when charging you going to be fine.
It's when you don't take that extra time to install your battery into a lipo bag is when you get burned.
EVEN AT 1C CHARGE!
I always use a lipo bag and charge at 20 amps without any problems. (knock on wood).