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Model Forum / Radio Controlled / Land Models / March 2004name just 5 chargers
hi im looking for a 15 min or less nicd charger > hi im looking for a 15 min or less nicd charger It is pointless to talk about charging time out of context. You need to know the charging amps, the battery capacity, and current charge of the battery; then it becomes relatively straightforward math. If you'd like to see what bang-for-the-buck chargers I use, see: http://www.mousetrap.net/~mouse/rc/  SignatureL.V.X., brother mouse http://www.mousetrap.net/otr/ Old Time Radio trades http://makeashorterlink.com/?K16312E06 CBS Radio Mystery Theater database http://greyhound.mousetrap.net/altus/ retired racing dog > > hi im looking for a 15 min or less nicd charger Following that logic.... assuming you're charging a 6 cell nicad..... all you need are a 12v car battery and two leads to connect the batteries together, should charge a flat pack in about 30 seconds ;-) just keep a fire extingusher handy incase something goes bang! > It is pointless to talk about charging time out of context. You need > to know the charging amps, the battery capacity, and current charge [quoted text clipped - 8 lines] > http://makeashorterlink.com/?K16312E06 CBS Radio Mystery Theater database > http://greyhound.mousetrap.net/altus/ retired racing dog >>> hi im looking for a 15 min or less nicd charger > [quoted text clipped - 3 lines] > seconds ;-) just keep a fire extingusher handy incase something goes > bang! Indeed, such "charging cables" used to be available and apparently were a fairly common RC accessory. I once read a book about RC that was written in Britain apparently sometime in the 70's, and it mentioned and pictured the use of a nicad charging cable with an auto battery. I also remember the caution about overcharging. I suspect those charging cables had some sort of current limiting resistor built-in. SignatureJim ----- www.onandaga.com Nope. The actual procedure was to hold the battery until it got warm, and then disconnect and run. SignatureJustin Mahn remove Panties to e-mail > >>> hi im looking for a 15 min or less nicd charger > > [quoted text clipped - 10 lines] > caution about overcharging. I suspect those charging cables had some sort > of current limiting resistor built-in. >It is pointless to talk about charging time out of context. Definitely. I'd rather have a good charge that takes 45 minutes, than a crappy charge that takes 15 minutes. >> hi im looking for a 15 min or less nicd charger > > It is pointless to talk about charging time out of context. You need > to know the charging amps, the battery capacity, and current charge > of the battery; then it becomes relatively straightforward math. More than that, a 4C (nominal 15 min) charge is too fast for any cells currently used in R/C cars. 2400 nicads will take 5 to 6 amps, for a 25-30 min charge; 3300 NiMH cells will stand no higher charge current than that (and 4 - 4.5 amps is probably safer), so you're looking at 45 minutes or more. If you're talking AA cells, or anything other than high-rate sub-C (SCR, SCRC) cells then they can take proportionally less current and shouldn't be charged any faster than 1C (one hour). The manufacturer's recommended fast charge is usually 4 hours (0.25C or C/4) or slower! Jonny LRP Quadra LRP Competion sport c Novak > hi im looking for a 15 min or less nicd charger |
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