Manker E11 Switch(?) Problem?

10 posts / 0 new
Last post
meeshu
Offline
Last seen: 2 months 2 weeks ago
Joined: 06/19/2012 - 06:58
Posts: 84
Location: NZ
Manker E11 Switch(?) Problem?

Just received another Manker E11 light, a cool white (CW) version this time. Previously bought a neutral white (NW) version.

On using an AA Eneloop cell, the E11 CW light didn't switch on despite trying the power switch several times!?

Removed the cell and checked the base spring and associated base contact and also checked the bezel contact for any dirt etc. The bezel contact looked a bit "dirty"(?) so I cleaned it using a cotton bud, and while I was at it, I also cleaned the base contacts and the body from any residue/dirt.

There was very little "dirt" cleaned off. Tried to switch on the light again, but still wouldn't switch on!?

I thought I had a faulty light now!

Tried another newer Eneloop instead of the first Eneloop cell (which was older and had lower charge), and this time the light switched on! I thought the first cell voltage maybe too low to run the light, so I recharged it.

I was able switch on the light with the newer Eneloop cell, select different modes and also able to (re)program light mode outputs (a long winded procedure!).

Switched the light off and put it down (gently) on a table. Picked the light up a bit later on to check it out again, and once again the light didn't switch on!!?? I swapped the "newer" Eneloop cell for another newer Eneloop cell, and again the light didn't switch on! I also recharged the newer cell (although it didn't really need it).

I knocked the light (gently) to check for a loose connection, and also tried cleaning all contacts again using cotton buds. But the light still wouldn't switch on!

I wound up recharging the second newer Eneloop cell also, but it didn't really need it (it was near full charge).

Swapped (fully charged) Eneloop cells into the light and somewhere in the process the light now decided to switch on and work! And as of now the light seems to be running OK without any further issue.

I'm beginning to suspect the issue may be due to the power switch as I had some problem with my first E11 here also.

It appears that after "working" the power switch to "break it in", the light now seems to work.

As mentioned in my linked post, the Utorch UT01 and to a lesser extent the Lumintop EDC05 lights had/have more serious switch problems according to various posts in forums, but very few (if any) have had switch problems with the Manker E11.

I'm beginning to wonder if Manker are now using different switches (compared to earlier runs) within the E11 as earlier E11 lights had no switch issues(?)

Flashlights: JETBeam JET-E01R, Klarus Mi1c, 3 x Manker E11 (two faulty), 2 x iTP SA1, JetBeam JET μ (unused), JetBeam JET I MK (sold), Klarus Mi10 (unused) 

Chargers: Miboxer C2-6000, Miboxer C4-12, iSDT C4, OPUS BT-C3100, OPUS BT-C2000, LaCrosse BC-900, Voltcraft IPC-1, Tenergy TN268, plus a few smaller chargers

meeshu
Offline
Last seen: 2 months 2 weeks ago
Joined: 06/19/2012 - 06:58
Posts: 84
Location: NZ

Just received another E11 CW version, and this time the power switch works fine with no issues!

Maybe using different switches in some of the E11's? Or maybe there are quality control issues with the switches which affects some lights?

Flashlights: JETBeam JET-E01R, Klarus Mi1c, 3 x Manker E11 (two faulty), 2 x iTP SA1, JetBeam JET μ (unused), JetBeam JET I MK (sold), Klarus Mi10 (unused) 

Chargers: Miboxer C2-6000, Miboxer C4-12, iSDT C4, OPUS BT-C3100, OPUS BT-C2000, LaCrosse BC-900, Voltcraft IPC-1, Tenergy TN268, plus a few smaller chargers

MascaratumB
MascaratumB's picture
Offline
Last seen: 40 min 28 sec ago
Joined: 10/29/2016 - 12:12
Posts: 3915
Location: Portugal

I remember having some trouble using Ni-MH cells, a while ago! I can’t remember exactly how the light behaved. I just know that using Li-Ion cells never gave me trouble!
Also, check if the PCB /spring in the tail is correctly “glued”. Mine “unglued” once and it gave me some issues as well.

Other than this, I never had issues with the switch on the light (bought in November 2016, I guess)!

[REVIEWS] AMUTORCH: S3 / S3 vs 219c / AM30 / AX1 / VG10 /// SOFIRN: SF14 + SP10A / SP32A / SP10B /// NITEFOX: UT20 / ES10K / K3 /// ODEPRO: KL52 / B108 /// ACEBEAM: H20 / TK16 /// BLITZWOLF: BW-ET1 /// DQG: AA Slim Ti /// HC-LIGHTS: SS AAA /// XTAR: PB2 Charger /// OLIGHT: M2R Warrior /// WUBEN: TO10R / E05 / T70 / E10 /// ON THE ROAD: M1 / i3 / M3 Pro /// ROVYVON: A2 + A5R / E300S / A8 /// KLARUS: XT1C /// LUMINTOP: Tool AA V2.0 + Tool 25 /// LIVARNOLUX: 314791 /// SKILHUNT: M150

Tricks: 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 /// TIR Lenses: 1 / 2 /// Others: Biscotti 3 + 1*7135 / Triple TIR w/ XP-G2 ///// My Collection ///// My Review's Blog (PT)

GIVEAWAY: 1

wle
wle's picture
Offline
Last seen: 14 hours 5 min ago
Joined: 01/07/2015 - 13:49
Posts: 1254
Location: atlanta ga

i had a u11 and the switch fell apart after about a year of not too heavy use
pretty sure it’s different from e11 though
wle

meeshu
Offline
Last seen: 2 months 2 weeks ago
Joined: 06/19/2012 - 06:58
Posts: 84
Location: NZ

I hope these E11 switches don't fall apart!

So far the E11's with NiMH Eneloops I'm presently using seem to be working fine! Hope it stays that way as well!

Apart from very slight possible dirt or corrosion(?) on the second light positive button/contact, there are/were no (obvious) indications that the negative contact springs and/or the positive contact buttons were loose or damaged etc.

Maybe coincidence, but the first two E11's with the (slight) switch problems were from an earlier batch of lights (serial numbers ending in . . 110 and  . .115 respectively). The latest E11 with no switch problems (so far) ends with serial number  . . 153. However, the year and and week of manufacture of these lights are the same (week 30 of the year 2013)! Maybe the switches were changed during this period of manufacture? Or maybe just coincidence that some switches don't work properly initially (due to QC issues?)?

Flashlights: JETBeam JET-E01R, Klarus Mi1c, 3 x Manker E11 (two faulty), 2 x iTP SA1, JetBeam JET μ (unused), JetBeam JET I MK (sold), Klarus Mi10 (unused) 

Chargers: Miboxer C2-6000, Miboxer C4-12, iSDT C4, OPUS BT-C3100, OPUS BT-C2000, LaCrosse BC-900, Voltcraft IPC-1, Tenergy TN268, plus a few smaller chargers

meeshu
Offline
Last seen: 2 months 2 weeks ago
Joined: 06/19/2012 - 06:58
Posts: 84
Location: NZ

One of my three E11 lights has become faulty, with hardly any use at all!

It is difficult to switch it on; usually requires several button presses.

Comes on at low level brightness, and brightness levels can no longer be changed.

Can't switch the light off either! Have to unscrew base cap to break electrical connection!

 

Tried freshly charged cells.

Cleaned base and head end contacts using cotton tips.

 

Still the light doesn't work properly.

 

Suspect either the switch, or the driver, or maybe both are faulty?

 

What to do now?

Flashlights: JETBeam JET-E01R, Klarus Mi1c, 3 x Manker E11 (two faulty), 2 x iTP SA1, JetBeam JET μ (unused), JetBeam JET I MK (sold), Klarus Mi10 (unused) 

Chargers: Miboxer C2-6000, Miboxer C4-12, iSDT C4, OPUS BT-C3100, OPUS BT-C2000, LaCrosse BC-900, Voltcraft IPC-1, Tenergy TN268, plus a few smaller chargers

meeshu
Offline
Last seen: 2 months 2 weeks ago
Joined: 06/19/2012 - 06:58
Posts: 84
Location: NZ

No comments?

 

Anyway, the faulty E11 with suspected faulty switch has been put aside and is scheduled to be disassembled when (if) I get some tools more suited for working on this light.

Now a second E11 light is starting to play up! It will not always switch on after attempting to switch it on (in moonlight mode). However, it is suspected this issue may be due to low voltage of NiMH cells after not using the light for some time (couple of weeks or so). The light seems to work better after using fully charged NiMH cells. But another issue is that the switch does not always switch the light on in some occasions (even with a fully charged cell in it), it requires pressing the light button in a certain way to get the light to work.

My third E11 is the ONLY light which seems to work fine with no switch issues, even when the NiMH cells have been drained a bit.

 

So only one E11 out of three that I have is working properly!

 

This seems to indicate that these lights do not appear to be reliable, which is a shame, as I was going to get maybe one or two more E11's. Now I'm looking elsewhere for more reliable replacement lights with similar features and functions to that of the Manker E11's.

Flashlights: JETBeam JET-E01R, Klarus Mi1c, 3 x Manker E11 (two faulty), 2 x iTP SA1, JetBeam JET μ (unused), JetBeam JET I MK (sold), Klarus Mi10 (unused) 

Chargers: Miboxer C2-6000, Miboxer C4-12, iSDT C4, OPUS BT-C3100, OPUS BT-C2000, LaCrosse BC-900, Voltcraft IPC-1, Tenergy TN268, plus a few smaller chargers

MascaratumB
MascaratumB's picture
Offline
Last seen: 40 min 28 sec ago
Joined: 10/29/2016 - 12:12
Posts: 3915
Location: Portugal

That seems to be a problem when assembling switch, maybe! Bad connections/soldering, who knows?
The switch never gave me problems but different cells acted differently…

meeshu wrote:
Now I’m looking elsewhere for more reliable replacement lights with similar features and functions to that of the Manker E11’s.

About this, Lumintop EDC05 and Utorch 01 are te most comparable lights, but both had batches with problems, with switches and other stuff, if I remember well.

Klarus Mi7, Sofirn SP10A/B (old or new versions) are suggestions, in case you need. Olight S1A is another, and you also have Fenix lights! For side switches, this is…

And, the much appreciated Wuben E05, probably one of the best around lately! The UI differs more from the E11, but is a neat little light !

[REVIEWS] AMUTORCH: S3 / S3 vs 219c / AM30 / AX1 / VG10 /// SOFIRN: SF14 + SP10A / SP32A / SP10B /// NITEFOX: UT20 / ES10K / K3 /// ODEPRO: KL52 / B108 /// ACEBEAM: H20 / TK16 /// BLITZWOLF: BW-ET1 /// DQG: AA Slim Ti /// HC-LIGHTS: SS AAA /// XTAR: PB2 Charger /// OLIGHT: M2R Warrior /// WUBEN: TO10R / E05 / T70 / E10 /// ON THE ROAD: M1 / i3 / M3 Pro /// ROVYVON: A2 + A5R / E300S / A8 /// KLARUS: XT1C /// LUMINTOP: Tool AA V2.0 + Tool 25 /// LIVARNOLUX: 314791 /// SKILHUNT: M150

Tricks: 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 /// TIR Lenses: 1 / 2 /// Others: Biscotti 3 + 1*7135 / Triple TIR w/ XP-G2 ///// My Collection ///// My Review's Blog (PT)

GIVEAWAY: 1

wle
wle's picture
Offline
Last seen: 14 hours 5 min ago
Joined: 01/07/2015 - 13:49
Posts: 1254
Location: atlanta ga

I had a U11 fail. It has a very bad button design, which can fail many ways.Not sure if it is the same but it is a spring steel disk , sort of glued to the back of the rubber button cover.

If it comes off, the switch will not work and there is no real way to be sure it goes back right, it is very flimsy.

And for other reasons the switch cannot be removed and replaced easily.

This light looks like a Utorch s10 i think, i also failed that one, again the switch.

wle

meeshu
Offline
Last seen: 2 months 2 weeks ago
Joined: 06/19/2012 - 06:58
Posts: 84
Location: NZ

Thanks for the comments!

It seems there are switch related problems for (some models of) Utorch, Manker, and Lumintop lights, based on comments in this forum and elsewhere.

Overall the Utorch UT01 light seems to have more switch issues compared to the Lumintop EDC05 and to the Manker E11. Apparently the E11 is supposed to have the least amount of switch problems. But unfortunately two of the three E11's I have seem to have switch problems. This is not good!

I'll maybe disassemble the really bad E11 I have and see if I can fix it(?)

The Utorch UT01 was considered to be purchased, but given the relatively bad reputation of switch problems for this model, I decided against getting this light as there was a high risk of getting one with a faulty switch.

I bought the Manker E11 lights instead as there were supposedly less chances of getting a light with switch problems. As it turns out I appear to have two faulty (switch related) E11's! Bad luck!?

I ordered a Lumintop EDC05 months ago from GB, but they still haven't shipped it, despite GB showing that shipment would be from a few days after order placement!? On querying the delay in shipment GB say that the light was not currently available and I should wait (or maybe buy another light instead).

If not currently available then why show the light available for sale and shipment of the light to be just a few days after ordering?

I've just cancelled the EDC05 order.

I'm looking at alternative lights to replace these E11's, based on comments here and elsewhere.

Flashlights: JETBeam JET-E01R, Klarus Mi1c, 3 x Manker E11 (two faulty), 2 x iTP SA1, JetBeam JET μ (unused), JetBeam JET I MK (sold), Klarus Mi10 (unused) 

Chargers: Miboxer C2-6000, Miboxer C4-12, iSDT C4, OPUS BT-C3100, OPUS BT-C2000, LaCrosse BC-900, Voltcraft IPC-1, Tenergy TN268, plus a few smaller chargers