mrfunkyjay
New Member
Hello Guys!!
I play 1:10 R/C. In my chassis I have a pack of SUB-C batteries plug onto the electronics as Power Supply.
There are several Cell Tray Discharger or Batteries Equalizer in the market but the price is kinda expensive for me.
I looked over my friend's batteries and I found that in every side-by-side cell he has, he soldered a resistor and a diode, not sure what it is but I would like to know also how this thing works!
Several facts regarding SUB-C type Ni-MH batteries are: they have what so called natural discharging, but it takes more than weeks and my friend told me that his packs are discharing themselves automatically by the resistive load of the resistor, and it stops (cut off) around 0.5V per cell. He used this method like 10 years and one of his pack is 12 years old, peak charge around 2200mAh but his cell is actually 2000mAh. What a trick!!! He had this method and his cells are damn healthy.
I believe several ppl have their own opinion regarding this design. Please do comment if you like, thanks!
This circuit should work like this:
1. Batteries work like normal when plugged and used.
2. When it is not used, resistor will discharge it slowly. Cut off determined by a diode.
3. When it reaches the cut off voltage, each cell stops discharging.
4. Batteries are ready to be charged!
Anyone knows what type of diode he used and how it is connected? does he use any Zener? Care to comment? Thanks!
I play 1:10 R/C. In my chassis I have a pack of SUB-C batteries plug onto the electronics as Power Supply.
There are several Cell Tray Discharger or Batteries Equalizer in the market but the price is kinda expensive for me.
I looked over my friend's batteries and I found that in every side-by-side cell he has, he soldered a resistor and a diode, not sure what it is but I would like to know also how this thing works!
Several facts regarding SUB-C type Ni-MH batteries are: they have what so called natural discharging, but it takes more than weeks and my friend told me that his packs are discharing themselves automatically by the resistive load of the resistor, and it stops (cut off) around 0.5V per cell. He used this method like 10 years and one of his pack is 12 years old, peak charge around 2200mAh but his cell is actually 2000mAh. What a trick!!! He had this method and his cells are damn healthy.
I believe several ppl have their own opinion regarding this design. Please do comment if you like, thanks!
This circuit should work like this:
1. Batteries work like normal when plugged and used.
2. When it is not used, resistor will discharge it slowly. Cut off determined by a diode.
3. When it reaches the cut off voltage, each cell stops discharging.
4. Batteries are ready to be charged!
Anyone knows what type of diode he used and how it is connected? does he use any Zener? Care to comment? Thanks!