Renegade88(2) 0 Posted March 19, 2003 How do I make a discharger at home for my Sanyo 1700 scr packs(NiCd) Share this post Link to post Share on other sites
DJTheo 2 Posted March 19, 2003 Use a 12V bulb for example from a car, but don't let it discharge too much, when the lamb just glims disconnect it. You could also just connect a motor and let it run till it slows down.... Share this post Link to post Share on other sites
robysoldtamiya 1 Posted March 19, 2003 You can also buy a Deans discharger cutoff. It is a unit you connect between your pack and a discharge resistor/bulb. It will shut off discharge when reached a prefix voltage, so you cna leave it and forget it without damage your batteries. Roby Share this post Link to post Share on other sites
omen666(2) 0 Posted March 19, 2003 you can buy a eagle racing discharger from www.modelsport.co.uk for £9.99. its nothing special, but it does the job very well. hope this helps Share this post Link to post Share on other sites
robysoldtamiya 1 Posted March 19, 2003 I think these units are low-current discharger. With Deans black box you can plug whatever you want up to 20A or 30A. Roby Share this post Link to post Share on other sites
WillyChang 1814 Posted March 19, 2003 You can wire up your own discharger using 12V car taillamp bulbs, get the 'brake' ones so you have dual filaments 5W/21W. Wire the 2 filaments in parallel and they'll provide approx 1A draw each; hook up as many bulbs as you need. As a guide approx 8 bulbs does the same drain as running a 540 motor in your car. A full 1700 pack drains in approx 8-10 mins. Some guys use up to 20 bulbs to simulate 'modified' motor usage. And if you wanna do something stupid, try hooking up that bank of 20 bulbs to a 12V battery!! You'll blind yourself with 500W+, promise!! [xx(][xx(][xx(] Share this post Link to post Share on other sites
trabbi daz 0 Posted March 20, 2003 I know that Irvine do a discharger for £6.95.I have just ordered one from my local hobby shop.It has the tamiya connector on it already so no messing about with it.Basically it's a heat sink with an LED on it and it dose'nt overdischarge either. My 2 euros Daz Share this post Link to post Share on other sites
raemin 0 Posted March 20, 2003 Hello, I do not know if you read french, but here is a very simple solution, based on lN40001 leds (1 per cell) + one of the above mentioned 12v bulb. This is a slow discharger. see discharger link Share this post Link to post Share on other sites
WillyChang 1814 Posted March 23, 2003 If only using a single bulb, they will still get pretty hot as-is... better to buy a 12V Car Trouble-Light with 21W bulb from the $2 Shop and stick a Tamiya plug on that. Simpler & safer. Share this post Link to post Share on other sites
MarkR 0 Posted March 31, 2003 The 6 doides used are 1n4004 which are general purpose rectifier diodes -1 amp items (the last diget indicating that in has a reverse threshold of 750v),6 of these diodes in series with a resistor(smallest size 4.6ohm 5watts)across the battery pack will discharge it untill the battery voltage drops to 3.6volts Higher amp diodes could be used for faster discharge rates. Because of the 0.6 voltdrop accross each diode for current to flow(6 x 0.6 = 3.6),once the battery volts drop to 3.6volts no current will flow[?] 1n4007 can also be used as these are also 1amp. Share this post Link to post Share on other sites
