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G&G cm16 srl battery issues

Sitting Duck said:
seems like G&G need to get their f*cking act together

stop trying to reinvent the wheel also

either the ETU isn't a wise replacement for old skool trigger

or their fets are $hite - again

What is the next excuse - people are using them too much with other brands of bb's

the new ETU's are designed to work only with their G&G bb's ffs

OK with the amount of stuff G&G shift you may get the odd lemon - but seems its getting too common now

Bloody shame - coz still want a FFR2 but didn't realise the trigger & fet will need swapping out :(
Click to expand...
Dont mean to say I told you so but.........
 
Their starter guns are OK...

It's when they try other crap they come unstuck

Their pbb box seems to be stopping or limiting what guns they go in. The new hog n predators seem to be STD box no pbb that may crack more than non pbb boxes

Their higher end guns are hmmm so-so

Even I wouldn't rush to spend £250+ on a G&G

They was also developing a new kind of tappet plate or bb loading system away from conventional tappet & cam on sector gear but not seen that implemented though to be fair not looked or own the new G&G's

I'll admit I had some reservations about their new technology when announced, but thought they had got it right now.

After all it couldn't be any worse - spoke too soon

The ETU unit is just a tarted up switch that I'm quite sure has cut off lever in. Now the problem is the simple switch is believe it or not quite hard to replicate for what it is.

It has a number of possible states that is hard to replicate even with a set/reset latch circuit, you would think a basic flip-flops type set/reset latching circuit with a couple of transistors would do it...

But there are a couple of states like semi stuck in dead zone that throw up possible qwirky scenarios that it don't work quite as expected....

I did look into an electronic circuit with NPN + PNP transistors myself but found this myself

Others have used logic gates and 555 timer chip but again the odd situation arises where some states don't quite work as expected needing more circuity

Or programmable chips like picaxe but they need voltage regulators as only 5v Max

So the ETU unit if it works is quite clever but it may be the issue

However given G&G's record with fet's plus the circuit reliability these 3 round switchable fet's may be the most likely cause as people say the led is blinking so ETU is working on maybe but fet is f*cked

Wish I had FFR2 - cane the bitch to fail

Then on a dud gun swap out the 3 rnd fet for a simple 3034 fet and it should just work

Cane it some more to see if ETU has to have more volts

But think this higher volts is bollox

Yes the ETU could be use a 5v regulator but as long as volts stay at say 6v+ then the 7805 regulator will put out the expected 5v

It is when input voltage drops to close to expected output voltage that the 5v starts going all weird.

Maybe they will replace the 3rd fet with just a basic fet like in the BOT 300, personally a F-storm fet or AirLabs would be best and be done with it. £10 fet that is hard to beat and at the moment G&G's innovation is looking pretty damn $hit tbh

Hope these owners get their guns sorted properly and soon

 
Ross49 said:
Had a similar problem with mine cm16 srxl using 7.4v lipo would shoot for a bit then stop completely, disconnect the bat re connect and it worked for a bit then repeat.

Took it back to store on Monday awaiting an out come.
Click to expand...
Any news on yours yet??

 
When I installed my mosfet, after a while I would get intermittent firing. Took the gearbox apart & found the signal wire I soldered on had come off so cleaned it a bit more & resoldered & been fine since

 
Seems like the ETU "might" be the problem....

Zero One have recently added this stuff on the ETU guns FFR & SR range....

G&G’s new ETU includes technology that will automatically stop the gun from operating if it detects the battery voltage is too low. Once you disconnect the battery it will likely still operate in guns without this technology, as those products will allow the battery to drain completely flat. This means when using a G&G gun with ETU, your battery must be fully charged or the automatic cut off feature will kick in. This feature is designed to protect your battery as well as the advanced control board inside. To avoid disappointment ensure your batteries are discharged and freshly charged before use. This is known as ‘cycling’ your batteries. This technique also improves battery performance by promoting battery life and memory.


This product requires a 9.6v battery to operate. Lower voltage batteries will not be recognised by the ETU....
Click to expand...
(still think this is bollox but there ya go....)

Now boring bit again.....

back to voltage regulators - simple 78xx series used to cheaply drop juice to req voltage
only problem is if input gets too close to output it can go weird....

Number Output(V) Min input(V)
7805 +5 7.3
7806 +6 8.3
7808 +8 10.5
7810 +10 12.5
7812 +12 14.6

blah blah blah.......

BUT what I don't get is that many ic's have a max voltage on 5v
so if used ic's eg: gates n stuff then they would of likely used 7805 with a min 7.3v input
remember most lipo's fresh of charge hit 8.3v to a max 8.4v
well ok to use on any ic circuit board in ETU unless they added other crap like a small resistor to take the voltage down further
which sounds daft or not really required - I mean yeah they could of used a 3 or 3.3v or 4.7v regulator
Though the actual mosfet might not trigger 101% with a 3v signal - not looked into the min switch on voltage of the mosfet

Yes the 3rd burst mosfet unit could be failing - which I still think is likely given their track record with mosfets in the past
Why do I say that - coz people are reporting the led on the fet is working/blinking
So the ETU could still be operating ok

All in all it sounds like a right f*ck up on G&G's R&D dept - again
A modern day aeg should easily be able to operate on lipo's - INCLUDING 7.4v lipo's !!!
Battery space is often restricted so much that the extra cell on 11.1v means battery options might be limited
plus not everybody wants/needs to run the higher juice 11.1v lipo's which are more bulkier/expensive etc....
LiFe 9.9v are limited in range/options and not stocked by many places plus don't think they offer the same grunt as LiPo's

Making people stay on 9.6v or 10.8v nimah's - REALLY FFS ???
ON A MODERN NEWLY DESIGNED RECEIVER 3RD BURST MOSFET GUN ???

C'mon G&G, lay off the drugs a bit and either just make the guns reliable with tried n tested old skool stuff in there
or stop trying to re-invent the wheel coz your modern square wheels you are coming up with are $hit

They are bringing out a AK105 type gun soon with ETU, now AK's depending on battery location
may have just the stick type under dust cover so that limits range of battery even more

Stop coming out with lame ar$e excuses that battery must be 9.6v or higher
Make YOUR guns and the dumb ar$e ETU or 3rd fet compatible with all sorts of batteries
That is where the fault lies - or at the very least how about you bundle in a battery with the gun
As your badly developed internals are the problem

I hope the owners get their guns sorted, hope G&G revise their poor design
or at least offer owners a discount on having to buy another f*cking battery coz your lame ar$e guns don't like 7.4v lipo's
(yeah I wouldn't hold ya breath on that one)

soz but its bollox - 7.4v can rip plenty and I don't like being told what I can or can't run with
BTC Spectre's n stuff can run on 7.4v to 14.8v - wtf can't G&G get their $hit together ????
 
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That really is disappointing if that is the case. I've just spent nearly £60 on batteries and reading that only one will actually work (and that will be for 1/2 a day if I'm careful).

I contacted several sellers of the SR and they all told me 7.4s were fine.

I'm still hoping out that mine has a fault as it did run for 1/2 a day on a 7.4. So if I need to change to another 7.4 for the afternoon that I can live with.

I just don't want to have to shell out for even more batteries or at the least try and exchange the ones I have (as it cost a fiver to send the bloody things back!)

My friend is testing all my batteries (1 brand new) and liasing with Zeroone where I bought it from so I should have some news next week.

Worse case scenario, I ask for it to be exchanged for a gun with out mosfet I guess? :(

 
Shouldn't bring out half ar$e designs imho

I think I read the ETU is just a drop in replacement for conventional trigger switch

so if the ETU is at fault then it should in theory be a simple case of putting in an ol' skool switch

However - the 3rnd burst can be toggled on/off by placing in semi and holding trigger for 10secs

Now I do not know if the ETU has a switch sensor for fire selector plate position

knowing its in semi with trigger held down 10secs after single shot fired....

In that case replacing the ETU with convention switch may screw up with 3rnd burst option

Or if the 3rd burst is all inside the fet and programmed on/off regardless of ETU or simple switch

Interesting to note to BOT 300 or 300 BOT has a normal fet and conventional switch in a classic CM receiver

so maybe the 3rnd burst is partly built into the ECU or at least relies on ETU unit to help toggle burst on/off

Yes it does seem the ETU range of guns have 3rnd burst - so it is all about that pile of electric junk trigger switch

This issue had get sorted out quick coz if the recently launched higher end £250+ Predator & Hog guns come with all this grief

then G&G may be getting a lot more pi$$ed customers

Bet ICS & Ares must be pi$$ing themselves at G&G's new developments

And tbh G&G should stop pi$$ing about bringing out half ar$ed designs and ideas until they got them bug free

seriously I love G&G starter guns but it when they try to innovate and rush out stuff they get their ar$es kicked

I wonder how far they got making all this bollox - looks impressive at first....


Go to 1:35 and read the instructions....

Don't use Batteries over 20c ???

ffs - make your bloody minds up G&G

old fets couldn't take 11.1v lipo's in Top Tech fetted guns

3rnd burst - must be 9.6v or over to work

MARS don't use lipo's over 20c ????

uhmm is there anything else - is ok to put little plastic balls in the magazine

or will that void the warranty - pah warranty, like it was highly engineered when it left factory

only Mars we need is

83.jpg


Soz - I'm being a bit harsh, normally the basic tried n tested stuff from them is pretty good - especially starter guns

Its when they try to punch above their weight they come unstuck trying to reinvent stuff - badly

I say badly coz they have made bad choices and invented crap stuff that just simply don't work reliably again n again

Alas G&G have still not got it quite right - shame coz they "look" lovely

 
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won't void warranty & won't be too crazy on the lame blue sticker

"Powerful Motor" its ferrite so you may get into 20rps but not much more than 22rps

especially with 20c lipo

Just absolute bollox that G&G make or force you to use 9.6v plus or gun won't function correctly

it is their modules or tech designers are at fault - ggggrrrrrrrrrrrrrr

stock basic guns may not be 11.1v lipo ready but these have mosfet so will be fine

(well doubt if AoE done but 2nd tooth probably removed, but still doubt if she will like insane rof out of box)

possible things that "might" void warranty....

replacing tamiya with deans - hmm maybe but could argue you only got dean lipo's ffs

checking motor connectors/swapping out motor etc....

(so don't strip threads or heads)

mind you if they put the things together correctly you wouldn't need to check all this stuff out so much

yes motor connectors could come undone....

but if they see you ballsed up the threads/heads you can imagine some ar$ey retailers getting all anal

obviously stuff like opening up gearbox is definate no no & no bloody way no

but certain stuff is just part of general ownership

as long as you don't go too far or muller it in process

 
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I'm now trying to swap the gun for a different model as there seems to be lots of complaints about this model and the mosfet/etu set up. I just don't feel confident in the gun now and would be worrying that the thing will just stop as soon as the battery's drop below a certain level.

Just hoping zeroone will exchange it.

 
MrPondlife said:
I'm now trying to swap the gun for a different model as there seems to be lots of complaints about this model and the mosfet/etu set up. I just don't feel confident in the gun now and would be worrying that the thing will just stop as soon as the battery's drop below a certain level.

Just hoping zeroone will exchange it.
Click to expand...
Try a different manufacturer not just a different gun.
 
An 11.1v lipo will be ok

comes off charge with max 4.2v x 3 cells = 12.6v max juice

each cell will run down to its rating of 3.7v

then once it hits around 3.3v volts you should change battery anyway

(lipo alarms kick in about 3.3v)

it seems that G&G designed it to work on 11.1v lipo

Nah - think they screwed up a bit in my mind

Suffice to say - people having grief should try to test it out on 11.1v

Personally I think this is a major balls up and if G&G had any f*cking sense they should of told buyers first

or chucked in a lipo battery to begin with - yeah don't hold your breath

but on higher end guns I really think they bloody should of chucked in a £10 11.1v lipo

coz they and/or their guns look right tossers with this stupid daft problem - so easily avoided

(cue Trigger saying yeah avoided by not buying G&G)

Edit - again

Wasn't the Scorpion Evo recommended to run on 11.1v lipo

don't know if that had fancy whilstle bursty pooh fire modes or what but sure somebody on here said it needs 11.1v really

Thing is 11.1v isn't that bad if gun has mosfet - just if gun is tweaked a bit you can get 11.1v performance on just 7.4v

plus batteries are cheaper/smaller which most guns you don't get much room to begin with

So in my mind G&G should of made it better, or tested it more

or if they knew it needed extra juice it should said - 11.1v lipo on box or chuck one in ffs

 
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Sitting Duck said:
Wasn't the Scorpion Evo recommended to run on 11.1v lipo

don't know if that had fancy whilstle bursty pooh fire modes or what but sure somebody on here said it needs 11.1v really
Click to expand...
Yes, they recommended an 11.1v for that. As you say if it's been fitted with a decent mosfet then it should be no issue but G&G need to make that clear in th eowners manual and all their presale literature. Especially after having their other mosfet fitted guns blow up on 11.1's.

I'm staring to think Trigger may have a point with G&G right now. They seem to be rushing to market with techy upgrades that aren't ready just so they're not seen to be lagging behind the competition!

 
Lozart said:
Yes, they recommended an 11.1v for that. As you say if it's been fitted with a decent mosfet then it should be no issue but G&G need to make that clear in th eowners manual and all their presale literature. Especially after having their other mosfet fitted guns blow up on 11.1's.

I'm staring to think Trigger may have a point with G&G right now. They seem to be rushing to market with techy upgrades that aren't ready just so they're not seen to be lagging behind the competition!
Click to expand...
For just once we might be in agreement - nearly

F*ck it - just bought a FFR 2 and will see wtf is up with this crap

(yes Trigger if its crap I'll have it)

 
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Difference is the scorpion evo still works on a 7.4v lipo. The recommendation was to get the best out of it.

Simple fact of the matter is you should be able to have a mosfet and an etu and still be able to turn your gun over on an 8.4v nimh.

Manufacturers need to sort out the existing issues before worrying about the bells and whistles.

Its about time someone brought out a v2/v3 gearbox that actually works properly.

You shouldn't need to correct aoe, just make the piston slightly longer.

You shouldn't need to shim gears. The gears should be on axles and the trigger unit should slot into place better. Imagine a gearbox where everything just slots into place perfectly and you can close the gearbox without playing finger twister.

The whole design is crap but instead of sorting it they just give you a mosfet and ask you to applaud.

Ics have made some strides but not enough.

Krytac did better but then replaced the 3k motor with a 2k motor for the UK market (wankers)

A few other manufacturers have done little bits in the same direction.

G&G just tried to wrap a turd in tinsel, the sort of tinsel that catches fire and burns your house down.

It would be nice to just buy an aeg that works properly and well because the mechanics are sound. All the gizmos shouldn't be needed.

 
ImTriggerHappy said:
G&G just tried to wrap a turd in tinsel, the sort of tinsel that catches fire and burns your house down.
Click to expand...
I do that anyway with my lipo's

I had my eye on one for a while, 10% + £12:50 ewallet means it is £135 delivered

gonna leave it stock, well fit a stubby stock on there, deans on there, bring it to Mall as a spare for you :)

go nutz with it on 7.4v 9.9v LiFe & have 11.1v block batteries and see how soon it goes tits up

if it craps out - deffo says Trigger

well I'll rip it apart and bodge - ergh I mean sort it properly with normal switch and Kong burst fet

Jeeeez - G&G sort your act out ffs

Bang goes my new years resolution of not buying any more guns....

But forget speculating what problem is

Got one - blow it up and see exactly wtf is up with it

(its a G&G says Trigger - oh shut up and lets see)

 
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