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Question about Efest LUC BLU6

H4X0R46

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Hey guys, I can't remember if I've asked this forum this question before, so sorry if this is a double thread, I get around on many forums lol So to business, I have an Efest LUC BLU6 charger, I like it, works well enough. But I noticed that some bays just charge faster than others when at the SAME charge rate! Like, I'm charging 3 18650s right now, and they always come off the charger in the same order, they don't charge full at the same time either. Is this normal with a charger?


e103afbfd0cbe384cba139b85fe72707.jpg


To give you an idea. Bays 2,3, and 4 have a battery in em.
 

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Squonkamaniac
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Did all three batteries have the same voltage prior to charging?

If they had different voltages, then yes, it's normal.
 

H4X0R46

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Did all three batteries have the same voltage prior to charging?

If they had different voltages, then yes, it's normal.

That's another thing, when put in the charger to charge, they always show a .1 to .4 difference between the three. Yet certain bays STILL charge faster. It doesn't make much sense. Did this with 2 trios of 25Rs I've had. Are chargers supposed to stop the bays all at the same time?
 

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Squonkamaniac
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That's another thing, when put in the charger to charge, they always show a .1 to .4 difference between the three. Yet certain bays STILL charge faster. It doesn't make much sense. Did this with 2 trios of 25Rs I've had. Are chargers supposed to stop the bays all at the same time?
They stop charging the batteries which have a full charge and keep charging others without a full charge.
 

H4X0R46

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They stop charging the batteries which have a full charge and keep charging others without a full charge.

Yeah I know, but I'm saying if they're at the same voltage, are they supposed to finish at the same time? Is it out of the ordinary for a bay to charge faster when the voltages match and same charge rate is used?
 

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Squonkamaniac
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Yeah I know, but I'm saying if they're at the same voltage, are they supposed to finish at the same time? Is it out of the ordinary for a bay to charge faster when the voltages match and same charge rate is used?
No, not to my knowledge, but I'm not a charger expert...just going by what my chargers do.
 

H4X0R46

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Member For 4 Years
No, not to my knowledge, but I'm not a charger expert...just going by what my chargers do.

Alright, thanks for the input man! What charger do you have actually? I may just go buy a new one if more people chime in here and say it's busted.
 

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Squonkamaniac
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I have a coupe four bay nicore's. Haven't had any problems in almost three years.
 

IMFire3605

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The LUC Blu6 like most chargers monitor the charge of each battery independently. Every battery is not identical, even among the same batch and same model, micro-variances of internal resistance, one may more electrolyte than another. Some recharge faster than others, while others need a little more power to push past their internal resistance to charge them properly. What you are seeing is the charger control board doing this monitoring and adjusting of each independent battery slot in real-time is all, thus why a lot of people like the digital readout chargers or like the Blu6 which I have as well, that bluetooth app for it is great at the amount of info it displays, select a bay being charged and move to the second screen for that bay to see the charge curve that battery, a lot of info there.
 

H4X0R46

Bronze Contributor
Member For 4 Years
The LUC Blu6 like most chargers monitor the charge of each battery independently. Every battery is not identical, even among the same batch and same model, micro-variances of internal resistance, one may more electrolyte than another. Some recharge faster than others, while others need a little more power to push past their internal resistance to charge them properly. What you are seeing is the charger control board doing this monitoring and adjusting of each independent battery slot in real-time is all, thus why a lot of people like the digital readout chargers or like the Blu6 which I have as well, that bluetooth app for it is great at the amount of info it displays, select a bay being charged and move to the second screen for that bay to see the charge curve that battery, a lot of info there.
Great thanks for the info! You're a jack of all trades ya know that? Lol does your Blu 6 have certain bays that ALWAYS finish first like mine does? It says 0.5a mode, but one bay will still finish 20 mins before the others. The same bay every time.

Sent from my Nexus 6 using Tapatalk
 

IMFire3605

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I don't monitor it with such scrutiny. I guess I could test it, but I've got batteries of various models, mah, and cdr I don't pay attention to it because it can have 2 to 3 batteries charging minimum at one time of various mah capacities, I'd have to do it this weekend with all my 25R's discharged similarly and load all the bays to see what goes on. Also remember that the charger itself like the LUC V4 has a 4amp input maximum pull from the the wall outlet that total charge output is still 4amps across all bays. They do throttle and ramp individual bays due to this limitation as well.
 

H4X0R46

Bronze Contributor
Member For 4 Years
I don't monitor it with such scrutiny. I guess I could test it, but I've got batteries of various models, mah, and cdr I don't pay attention to it because it can have 2 to 3 batteries charging minimum at one time of various mah capacities, I'd have to do it this weekend with all my 25R's discharged similarly and load all the bays to see what goes on. Also remember that the charger itself like the LUC V4 has a 4amp input maximum pull from the the wall outlet that total charge output is still 4amps across all bays. They do throttle and ramp individual bays due to this limitation as well.
I may be the only person who does lol I have one set of 25Rs and that's it. Really need a couple more sets. Would a faster bay wear on the battery slightly more than the rest? I think even though the charger does this, it should be alright. My mod always reads their voltage out about the same, of course a little janky because wismec boards just are, but it should be fine hopefully.

Sent from my Nexus 6 using Tapatalk
 

hellcatrydr

Gold Contributor
Member For 4 Years
There're wayyy (1) too many threads on this charger, I get confoosed.

I have one and never cared for it.. I'd pif it in a heartbeat. It's yours if you can pick it up in L.A.
 

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