deep discharge

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cdragut
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Joined: 07/24/2008
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when can you tell you have performed a "deep discharge"?
it seems that zero range, zero bars is not enough if the scoot can still run (even if painfully slow)...

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AndY1
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Joined: 06/17/2008
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Re: deep discharge

I guess when you're on a flat terrain, with throttle fully opened and not moving at all anymore, then you've done a deep discharge.

Morrison
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Joined: 07/07/2008
Points: 151
Re: deep discharge

AndY1 wrote:

I guess when you're on a flat terrain, with throttle fully opened and not moving at all anymore, then you've done a deep discharge.

I have heard that is bad for batteries to go 100% to empty. Is that other types of battery chemistry? Is the NiMH battery fine with going 100% to empty?

AndY1
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Re: deep discharge

NiMH must not go below 1V/cell. I've read post from the users here, that the Vectrix' cut-off voltage is 108V, which is above the lowest voltage. In any case, Vectrix must have a protection logic to completely turn-off in case of 1V/cell in case that someone parks the bike and lets lights turned on.

moccasin
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Joined: 07/11/2008
Points: 494
Re: deep discharge

AndY1 wrote:

in case that someone parks the bike and lets lights turned on.

Wouldn't that be the easiest way to do a deep discharge? Just finish up a long day on a low battery then just leave the key on? Would that burn up the controller?

I'd much rather let the headlight run mine down in the driveway on a weekend, then charge it up Sunday night, than to have to push the thing up my hill.

Mik
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Joined: 12/11/2007
Points: 3739
Re: deep discharge

AndY1 wrote:

NiMH must not go below 1V/cell. I've read post from the users here, that the Vectrix' cut-off voltage is 108V, which is above the lowest voltage. In any case, Vectrix must (bolding by Mr. Mik) have a protection logic to completely turn-off in case of 1V/cell in case that someone parks the bike and lets lights turned on.

Should have, and hopefully does have...

But it is not certain if it has a low voltage cutoff for the DC/DC converter.

It could be very expensive to leave your lights on for too long...

Here is how I did it, it might be better or worse than the "leaving the lamp on" approach:

As I wrote earlier: All this should be done before delivery/hand-over to the buyer, but hey, it's about solutions for the Real World. Be careful.

Mr. Mik

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