Looking to buy a spare Neptune BMS if someone has one.
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what’s wrong with using an LLT or Daly?
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Nothing wrong, do you have a suggestion for a low footprint BMS that supports bluetooth and in reasonable price range ?
I have a new 20s LLT BMS still in box, if you want to buy it. $35+s&h
I think it is very large no ?
The latest generation of LLT are all quite small. Daly is very big though
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Bigger then a Neptune, but not that big
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I see that many BMSs have a low discharge rates such as 30A , 20A etc … (the more compact ones at least).
Does this matter ? I mean isn’t that restrictive ?
Or that most people are just giving up and installing their BMS as charge only BMS ?
What do you people think ?
Here is just one of many topics on the matter. Search for “discharge bms” if you want more horror stories.
The vast majority of people here run charge-only.
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charge only is safer, having brakes n’ all
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*and program the low-voltage cutoff in vesc.
It doesn’t protect against an abnormally low cell, but if you don’t drain the pack voltage down to like <3v/cell it’s fine.
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Does bypassing affects anything to do with cell balancing ?
Say BMSes that are doing leakage of current to balance groups, do they get affected by this in any way ?
Bypassing discharge through the bms shouldn’t affect the balancing function in any way
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your BMS primarily balances while charging anyway, as long as your esc can turn off there’s zero downside to bypass.
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Maybe except over discharge … ?
your esc or vesc should have a minimum voltage cut-off to prevent that, and as I said as long as you can turn the esc off the pack won’t discharge outside of actual usage.
a loopkey is the ultimate shut-off, completely preventing discharge.
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