Nitecore EA45S Review. Lots of Pics.

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teacher
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arow55 wrote:
What do these results indicate so far?

Just the parasitic drain with the light on “Lock Out” and zero light use.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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arow55
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teacher wrote:
arow55 wrote:
What do these results indicate so far?

Just the parasitic drain with the light on “Lock Out” and zero light use.

What I was asking is do the numbers tell you anything yet? The drain can’t be too bad, right?
teacher
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My bad ‘arow55’………. Wink
Looks like in six weeks of being on “Lock Out” with absolutely zero use, the average loss per battery is 0.08525v.
That seems like a pretty minuscual loss to me.
We will see what happens with more time though…. but I am thinking it will be nothing drastic. Wink

  • Light Nitecore / EA45S
  • Batteries / Eneloop ‘PRO XX’ AA _ (HR-3UWX min 2400mAh / 11-05-EE) _ Batteries fully charged, rested over 24 hrs. then installed.

Date..9-19-2016……10-3-2016……11-1-2016
Time..08:00…………16:10………….11:35………..

  1. … 1.387v………..1.326v………..1.304v
  2. … 1.388v………..1.328v………..1.305v
  3. … 1.391v………..1.326v………..1.303v
  4. … 1.391v………..1.327v………..1.304v

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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lightx
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Thanks for reporting the parasitic drain. Mine still on the way.

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UPDATED / 11-14-2016

teacher wrote:
Funny y’all should bring up “parasitic drain during lockout” concerning this light. I got curious about that too after reading about that little Nitecore key chain light thing.
I just started testing one of my EA45S’s back on 19 September 2016.
Here are the results so far.
  • Light Nitecore / EA45S
  • Batteries / Eneloop ‘PRO XX’ AA _ (HR-3UWX min 2400mAh / 11-05-EE) _ Batteries fully charged, rested over 24 hrs. then installed.

Date..9-19-16…10-3-16…..11-1-16….11-14-16
Time..08:00……16:10……..11:35……12:20…………

  1. 1.387v…..1.326v……1.304v……1.298v
  2. 1.388v…..1.328v……1.305v……1.298v
  3. 1.391v…..1.326v……1.303v……1.297v
  4. 1.391v…..1.327v……1.304v……1.298v

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

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WojtekimbieR
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You can calculate the mAh drop from the voltage drop by knowing the discharge curve, no? Then parasitic drain in mA is easy

Just for a moment... Okay I may stay a little longer

teacher
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Probably, but I have no clue how to do it……. Wink

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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MarioP
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Received mine on the weekend. It turned on one day and does not turn on anymore. Tried numerous batteries and no-go.

Anyone encounter issues with their EA45S?

Mario
Ottawa

teacher
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MarioP, I have had no issues with the latest EA45S’s I have bought. But that being said, in the last few days the first one I bought, about a year ago IIRRC; developed a problem.

It comes ‘On’ in ‘Low’ when the ‘Off/On switch’ is pressed. But when the ‘Mode switch’ is pressed it turns ‘Off ‘. Sad Question
I assume something has gone wrong with the switch, but that is just a guess.

I have the reflector out, all the solder joints & wires I can see appear OK. I am now trying to figure out how to get the switch, boards, LED, & the rest of the “innards” out (without destroying them) to check what I can’t see.

This is the first Nitecore of many I have ever had any problem with at all.

So, when I get the “innards” out and check them maybe I’ll know more.

As far as your’s goes, sorry; I have no idea my friend. Sad Good luck though.

IF I find out what is wrong with mine I’ll report back. Maybe that might help you.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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MarioP
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Please keep me informed. I too assume something in the switch went bad….but I am not knowledgeable (or brave) enough to take it apart.

Mario

mikeyx
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MarioP wrote:
Please keep me informed. I too assume something in the switch went bad….but I am not knowledgeable (or brave) enough to take it apart.

Mario

It might be in lockout mode. Try pressing both switches at the same time.

Mike

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That is a good point ‘mikeyx’! Thumbs Up

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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MarioP
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mikeyx wrote:
MarioP wrote:
Please keep me informed. I too assume something in the switch went bad….but I am not knowledgeable (or brave) enough to take it apart.

Mario

It might be in lockout mode. Try pressing both switches at the same time.

Mike

Thanks Mike. Already tried it, but it may be stuck in lock out. I can’t get anything, no battery indicator…nothing.

Any other secret switch combination?

Mario

arow55
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Try cleaning battery contact points. Has worked for me on other lights.

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MarioP wrote:
mikeyx wrote:
MarioP wrote:
Please keep me informed. I too assume something in the switch went bad….but I am not knowledgeable (or brave) enough to take it apart.

Mario

It might be in lockout mode. Try pressing both switches at the same time.

Mike

Thanks Mike. Already tried it, but it may be stuck in lock out. I can’t get anything, no battery indicator…nothing.

Any other secret switch combination?

Mario


Taking the batteries out and then putting them back in (or just taking the tail cap off and then back on) should clear any lockout mode. Let it sit for a while without cells to make sure any caps drain down, then try it again. Good Luck.

You don't really need a parachute to skydive. But you DO need one if you want to skydive twice!

MarioP
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tried everything…not only does it not work, batteries are completely drained within 24 hrs…..

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MarioP wrote:
tried everything…not only does it not work, batteries are completely drained within 24 hrs…..
That ain’t good………. Facepalm
Keep us posted on the outcome ‘MarioP’, good luck. Thumbs Up

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

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UPDATED / 11-23-2016

teacher wrote:
Funny y’all should bring up “parasitic drain during lockout” concerning this light. I got curious about that too after reading about that little Nitecore key chain light thing.
I just started testing one of my EA45S’s back on 19 September 2016.
Here are the results so far.
  • Light Nitecore / EA45S
  • Batteries / Eneloop ‘PRO XX’ AA _ (HR-3UWX min 2400mAh / 11-05-EE) _ Batteries fully charged, rested over 24 hrs. then installed.

Date..9-19-16..10-3-16..11-1-16…11-14-16..11-23-16
Time..08:00…..16:10….11:35……12:20…….04:25…….

  1. 1.387v….1.326v…1.304v….1.298v…..1.295v
  2. 1.388v….1.328v…1.305v….1.298v…..1.296v
  3. 1.391v….1.326v…1.303v….1.297v…..1.294v
  4. 1.391v….1.327v…1.304v….1.298v…..1.295v

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

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adirondackdestroyer
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I’m not 100% sure what the results mean, but are those results considered good or bad after two months? I have this light as my nightstand light, so I wan’t to be sure it’s gonna go when I need to use it. Granted I charge the batteries up every few weeks just to be safe.

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adirondackdestroyer wrote:
I’m not 100% sure what the results mean, but are those results considered good or bad after two months? I have this light as my nightstand light, so I wan’t to be sure it’s gonna go when I need to use it. Granted I charge the batteries up every few weeks just to be safe.
A more knowledgeable person may disagree, but I would consider this good. Thumbs Up

In 65 days of being in “Lock Out” with no (zero) use, the four batteries lost an average of 0.09425v each. (less than 1/10 volt.)
That comes out to 0.00145v per day.

Seems pretty good to me. Thumbs Up
Wink

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

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MorePower
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Voltage loss in NiMH cells is going to occur over time, even for low self discharge cells, so your measurements don’t really say much about how much the light is draining them.

To really see how bad any parasitic drain may be, you could get two sets of 4 cells, test them all for capacity, recharge them, then put 1 set in the light and leave 1 set out of the light. After a period of time, test both sets for remaining capacity and see how much of a difference there is between them. They’d both should have the same amount of self discharge, so any difference in capacity could be attributed to the light.

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MorePower wrote:
Voltage loss in NiMH cells is going to occur over time, even for low self discharge cells, so your measurements don’t really say much about how much the light is draining them.

To really see how bad any parasitic drain may be, you could get two sets of 4 cells, test them all for capacity, recharge them, then put 1 set in the light and leave 1 set out of the light. After a period of time, test both sets for remaining capacity and see how much of a difference there is between them. They’d both should have the same amount of self discharge, so any difference in capacity could be attributed to the light.

I agree, that is a great idea & I may do it some day… if someone else doesn’t do it first.
Right now I am just interested in seeing how long it will go and the light still be usable if needed. And I know there are many variables in that, how long to be used, mode etc., etc.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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UPDATED / 12-10-2016

teacher wrote:
Funny y’all should bring up “parasitic drain during lockout” concerning this light. I got curious about that too after reading about that little Nitecore key chain light thing.
I just started testing one of my EA45S’s back on 19 September 2016.
Here are the results so far.
  • Light Nitecore / EA45S
  • Batteries / Eneloop ‘PRO XX’ AA _ (HR-3UWX min 2400mAh / 11-05-EE) _ Batteries fully charged, rested over 24 hrs. then installed.

Date..9-19-16..10-3-16..11-1-16…11-14-16..11-23-16..12-10-16…..Ending voltage when light went into:
Time..08:00…..16:10….11:35……12:20…….04:25…..15:05………..“Low Voltage Lock Out”

  1. 1.387v….1.326v…1.304v….1.298v…..1.295v…..1.290v……………….1.145
  2. 1.388v….1.328v…1.305v….1.298v…..1.296v…..1.291v……………….1.152
  3. 1.391v….1.326v…1.303v….1.297v…..1.294v…..1.289v……………….1.144
  4. 1.391v….1.327v…1.304v….1.298v…..1.295v…..1.290v……………….1.157

OK, the last “Lock Out” voltage listed was measured yesterday 12-10-2016….. 83 days after starting.

I then turned the light on Turbo and it ran for 73 minutes before going into what I call “Low Voltage Lock Out”. (It will only work in the lowest mode)

Please note, when the light got to hot in Turbo mode it would drop down to High mode. When it cooled a few minutes I would put it back in Turbo mode.

Thus ends this highly unscientific “test”. Wink

But as far as I am concerned the parasitic drain when this light is in Lock Out is nothing to worry about. It can sit around for a long time in LockOut and still have plenty of juice to run it when you need it.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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arow55
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Thanks. Doesn’t seem to be any problem with my example either.

pirate joe 22
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I love the form. I love my EC4S with XHP-50. I think this EA45S is one of the best lights made. Much easier to carry than a mini soup can.
Getting this much lumens and throw with AA batteries makes this a must have survival / prep light.
You can recharge AA nimh with a solar setup.

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Your welcome ‘arow55’, glad yours is the same. Thumbs Up
———————————
I’m with you about the EA45S ‘pirate joe 22’.

I use Eneloops in mine & could not be more pleased with that combination.

Of course any AA will work, but I have had such good luck with Eneloops; they are the only thing I use. I have some that were made 10 years ago that are still going strong. That is very difficult to beat in my book. Smile

PS / I think if I had to choose only one light, the EA45S would be it.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

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Colosus01
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Anyone able to confirm that this light is discontinued?

According to this it is

https://www.massdrop.com/buy/nitecore-ea45s/talk

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Well, GearBest has a deal for it at about 36$ so I think it will be or is already discontinued.

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teacher
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Interesting, that may very well be why they are blowing them out at that price. Thumbs Up
Fortunately for me I got a lifetime supply when they started the blowout. Wink

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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Colosus01
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Just an update that gearbest have advised that nitecore have stopped making the EA45S.

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