amperage ? about new duratrax ice charger
07-27-2005, 03:55 PM
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amperage ? about new duratrax ice charger
I have a 12v power supply for my home that has a 3amp continuous and 5amp surge will this power the duratrax ice charger while charging li-po?
07-27-2005, 09:06 PM
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RE: amperage ? about new duratrax ice charger
It really depends what you are charging, if are charging a 3 cell lipo pack at 2 amps or a nimh at 1.5 amps you will probably be ok.
But you won't be able to charge 10 cell packs. The minimum stated input for the chargers is for heavy charging conditions.
Wood Duck
But you won't be able to charge 10 cell packs. The minimum stated input for the chargers is for heavy charging conditions.
Wood Duck
07-28-2005, 08:13 AM
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RE: amperage ? about new duratrax ice charger
Ah, this is a perfect time to introduce the "mkirsch1 formula" some of you may be familiar with from that "other" site 
This is a formula for sizing a 12V power supply based on the size of the pack you want to charge, and what rate you want to charge it:
Power Supply Amps = <# of NiCd or NiMH cells> * <charge rate> / 6
Let's say you want to charge 10 NiMH cells at 6 Amps.
Power Supply Amps = 10 cells * 6 Amps / 6 = 10 Amp power supply
This is a formula for sizing a 12V power supply based on the size of the pack you want to charge, and what rate you want to charge it:
Power Supply Amps = <# of NiCd or NiMH cells> * <charge rate> / 6
Let's say you want to charge 10 NiMH cells at 6 Amps.
Power Supply Amps = 10 cells * 6 Amps / 6 = 10 Amp power supply
