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Is it worth it to get dedicated Lipo Discharger? 2s discharge amps?

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Is it worth it to get dedicated Lipo Discharger? 2s discharge amps?

Old 11-17-2023, 11:21 AM
  #31  
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Not that it needs it.

I use lightbulbs with a Junsi Duo. Just plain old car bulbs soldered to a brass rod. High and low beams on.
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Old 03-03-2024, 07:01 AM
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Originally Posted by NZDave
I use a Skyrc BD250 and discharge my lipos at 10A. I take them down to 7.4V at 10A. This just makes discharging a whole lot faster than my normal charger. However it does not have a balance feature so may dis charge one cell more that the other. For this reason I would not put two batteries in series to discharge at once as you could finish up over discharging one of the packs. Once I have discharged my lipos at 10 amps on the Skyrc discharger I then put them on my normal charger to get to final discharge state.
I tested the cell to cell voltage during a discharge using the BD250 and there was maybe a .001 difference during the entire event, even at a 30 AMP discharge. It my humble opinion, balancing is more important during a charge cycle.
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Old 03-03-2024, 07:02 AM
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Originally Posted by foosoomin
Very sad to hear this discharger does not have balance feature, to balance battery voltage
See my comment above. It did not matter as the voltage stayed the same amongst the 2 cells during discharge with the BD250.
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Old 03-03-2024, 07:46 AM
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Remember: your RC car will also not balance discharge your batteries. As long as your cells are in good condition, they should not diverge in voltage very much - as long as you balance charge them.
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Old 03-05-2024, 01:15 PM
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I have used the BD250 for quite a while now, and am happy with it ... the only caveat, is that I find it is not calibrated all that well ... I usually discharge my 2S lipo's at 15 amps, and adjust the voltage cut off about 7.25, with my DVM in line and that stops the discharge about 7.6V (3.8 per cell) ... I have found VERY little difference in the 2 cells during discharge (as Nevada mentioned) with DVM inline ... IF I am going to leave the lipo's sit for an extended period, I will put them on a little 3 bulb AOK discharge/balance unit I have which evens them out perfectly for storage ...
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Old 03-20-2024, 07:00 PM
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I've been using the BD350 40amp discharger with my SkyRC D200 Neo. I picked up both for $200, and it has been a fantastic setup. That 40a discharger can drop batteries in no time and the D200 has been awesome as well. Highly recommend both.
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Old 06-02-2024, 02:29 AM
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I borrow this thread.


Does this BD250 able to reduce battery internal resistance ?
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Old 06-02-2024, 02:40 AM
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Originally Posted by foosoomin
I borrow this thread.


Does this BD250 able to reduce battery internal resistance ?
Anything that provides a high charge rate or high discharge rate will provide a temporary IR improvement at the cost of the life of the battery.
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Old 06-02-2024, 02:55 AM
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Originally Posted by gigaplex
Anything that provides a high charge rate or high discharge rate will provide a temporary IR improvement at the cost of the life of the battery.

Just temporary ?


But will shorten battery lifespan.


Then is not worth charging/discharging battery at high ampere
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Old 06-02-2024, 03:52 AM
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Originally Posted by foosoomin
Just temporary ?

But will shorten battery lifespan.

Then is not worth charging/discharging battery at high ampere
The idea is simple, do you want to do it all to win races and you are in the top then yes you will notice the effect of high rate charging/discharging. If you are just a basher, you will not notice a thing.
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Old 06-02-2024, 01:05 PM
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I have always charged my batteries the night before a race. Some of my batteries are older than 2 years. That's long enough for a battery to last anyway.
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Old 06-02-2024, 04:06 PM
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Originally Posted by foosoomin
Just temporary ?


But will shorten battery lifespan.


Then is not worth charging/discharging battery at high ampere
Yes, just temporary. The high currents warms up the internals. Once it cools down the IR goes back up.
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