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-   -   1S discharger availability? (https://www.rctech.net/forum/radio-electronics/1095568-1s-discharger-availability.html)

Sandfreak 02-02-2022 10:36 PM

1S discharger availability?
 
Lots of stand alone dischargers available for 2S but I can't seem to find any for 1S.

Roelof 02-03-2022 01:59 AM

With some electroncs easy to make

Sandfreak 02-12-2022 01:11 PM


Originally Posted by Roelof (Post 15871229)
With some electroncs easy to make

So is this redneck set up LOL. But in my internet searching have never seen a DIY 1-S discharger with adjustable discharge rate and voltage cutoff. If you can share a link I'd appreciate it.
https://cimg9.ibsrv.net/gimg/www.rct...b499ae2499.jpg


Roelof 02-12-2022 02:06 PM

Easy to design. I would go for an OPAMP to do a voltage comparisation with a reference voltage and a simple flipflop circuit as start/stop. Controling a relay and some resistors wits some switches to select the discharge rate.

My home build 2S discharger is basically doing the same but using a LiPo alarm as low voltage detection.
https://www.rctech.net/forum/radio-e...ischarger.html

Sandfreak 02-12-2022 02:12 PM


Originally Posted by Roelof (Post 15874839)
Easy to design. I would go for an OPAMP to do a voltage comparisation with a reference voltage and a simple flipflop circuit as start/stop. Controling a relay and some resistors wits some switches to select the discharge rate.

My home build 2S discharger is basically doing the same but using a LiPo alarm as low voltage detection.
https://www.rctech.net/forum/radio-e...ischarger.html

Thanks for the link. I'll check it out after my race tonight.

ramman347 08-26-2022 06:52 AM

I just run my cells down on vehicle. Only takes a min or two at full speed. I have made a light discharger too. If one small bulb doesnt discharche fast enough add another in parallel. If batt gets warm lose one bulb.

disaster999 08-28-2022 08:51 PM


Originally Posted by ramman347 (Post 15933984)
I just run my cells down on vehicle. Only takes a min or two at full speed. I have made a light discharger too. If one small bulb doesnt discharche fast enough add another in parallel. If batt gets warm lose one bulb.

Sometimes that is not feasible due to various of reasons...track closed, started pouring outside, its getting late etc. At that point a discharger is needed to bring the battery down to storage voltages.


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