New Convoy T2 - Remove mode memory?

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nick779
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New Convoy T2 - Remove mode memory?

I have a new Convoy T2 floating around somewhere in the US postal system and figured it couldn’t hurt to ask. Do anyone know if the mode memory on the latest version can be defeated by removing a component on the driver itself? Maybe an off time capacitor or something?

I believe this is the driver installed in the light:
https://www.aliexpress.com/item/4000967149302.html?spm=2114.12010612.814...

jasontheguitarist
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It seems like Convoy may be making a programmable AA/14500 driver for the T2 in the future. As far as removing memory from the existing driver I wish I knew, I would have bought one already but I prefer low to high no memory for small lights like that.

Chronovore
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I am also interested in this topic. Is there an easy way to disable memory mode?

Slim Pickens
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Find the capacitor used for mode memory. Use a pencil to draw a line on the capacitor ‘s top to connect the leads with a conductive line of graphite.
For more info search for “pencil trick.”

DTales
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You can also swap in a 17mm driver with whatever ui you prefer.

nick779
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Slim Pickens wrote:
Find the capacitor used for mode memory. Use a pencil to draw a line on the capacitor ‘s top to connect the leads with a conductive line of graphite. For more info search for “pencil trick.”

I was hoping for some assistance locating that, I’ll have to dig into it once I receive the light. It seems to have cleared customs and has been sitting at a distribution site for 3 weeks now.

DTales wrote:
You can also swap in a 17mm driver with whatever ui you prefer.

I keep forgetting this takes a 17mm driver…

Chronovore
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nick779 wrote:
Slim Pickens wrote:
Find the capacitor used for mode memory. Use a pencil to draw a line on the capacitor ‘s top to connect the leads with a conductive line of graphite. For more info search for “pencil trick.”

I was hoping for some assistance locating that, I’ll have to dig into it once I receive the light. It seems to have cleared customs and has been sitting at a distribution site for 3 weeks now.

Being an electronic novice, I’d also love some more detailed instructions or a picture with the specific spot circled. Mode memory really saps the enjoyment for me.

jasontheguitarist
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In the Convoy thread a few of us were trying to talk Simon into going through with his plan to offer the AA/14500 driver in the T2 with the programmable 12 group firmware. That would allow different mode groups and more importantly allow memory to be turned on and off. He thought the T2 wasn’t popular enough, but it seems like it’s catching on lately.

Chronovore
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jasontheguitarist wrote:
In the Convoy thread a few of us were trying to talk Simon into going through with his plan to offer the AA/14500 driver in the T2 with the programmable 12 group firmware. That would allow different mode groups and more importantly allow memory to be turned on and off. He thought the T2 wasn’t popular enough, but it seems like it’s catching on lately.

Let him know that I’d order a few. Getting Biscotti, high CRI, and some nice tint choices would be a real win for Eneloop users. I know a few people IRL who’d be interested too.

Unloco
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Chronovore wrote:
jasontheguitarist wrote:
In the Convoy thread a few of us were trying to talk Simon into going through with his plan to offer the AA/14500 driver in the T2 with the programmable 12 group firmware. That would allow different mode groups and more importantly allow memory to be turned on and off. He thought the T2 wasn’t popular enough, but it seems like it’s catching on lately.

Let him know that I’d order a few. Getting Biscotti, high CRI, and some nice tint choices would be a real win for Eneloop users. I know a few people IRL who’d be interested too.

+1

If it is AA compatible with Biscotti (or clone), it will be the flashlight of I choice to give as a gift to replace the discontinued SF10.

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I wish a few of the mode groups in Biscotti were a little different (specifically I’d like a 0.1%-1%-10%-100% group), but and I’m about to swap a Convoy 7135 Biscotti driver into my T2 anyway. That’ll get rid of Ni-MH support, but my other problem with the T2 is that none of the AA Ni-MH batteries I have actually fit, since the tube is maybe half a mm too narrow. Fix those two things, and it would be a chunky 14500 light but a decent one.

MascaratumB
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Makky-Kat wrote:
I wish a few of the mode groups in Biscotti were a little different (specifically I’d like a 0.1%-1%-10%-100% group), but and I’m about to swap a Convoy 7135 Biscotti driver into my T2 anyway. That’ll get rid of Ni-MH support, but my other problem with the T2 is that none of the AA Ni-MH batteries I have actually fit, since the tube is maybe half a mm too narrow. Fix those two things, and it would be a chunky 14500 light but a decent one.

I have a Biscotti driver on mine for a while and it works well! Unlike yours, I guess mine takes all the Ni-MH cells I have both in length and diameter. Maybe it was a different batch you got Oops
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nick779 wrote:
Slim Pickens wrote:
Find the capacitor used for mode memory. Use a pencil to draw a line on the capacitor ‘s top to connect the leads with a conductive line of graphite. For more info search for “pencil trick.”

I was hoping for some assistance locating that, I’ll have to dig into it once I receive the light. It seems to have cleared customs and has been sitting at a distribution site for 3 weeks now.

DTales wrote:
You can also swap in a 17mm driver with whatever ui you prefer.

I keep forgetting this takes a 17mm driver…

I don’t think the pencil trick works on all drivers, as it should depend how they set mode memory.

If it is based on a capacitor, I would expect it to be a capacitor that has a trace leading either directly to or through a resistor to a pin on the microcontroller. However, I can’t tell from the picture on Convoy’s store which of the tan capacitors it would be. I would speculate either the one on the back side that is between two small resistors, or one of the two on the top side that is between the red wire and the microcontroller.

https://www.aliexpress.com/item/4000967149302.html?spm=2114.12010612.814...

Since this takes a 17mm driver, it occurred to me it is possible to swap in the 17mm SST-40 driver, do a spring bypass, and with a high drain 14500, have a remarkably high output light for the size: 5A even with a high CRI LH351D should be over 1000 lumens.

djozz
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I have a T2 with a swapped driver and it does put out a lot of light, but the real attraction of the T2 for me is NiMh compatibility. So if Simon improves his boost driver for the T2, option for no memory is my main wish, I prefer that to anybof the lineair drivers.

buck91
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I’ve held off on the T2 specifically because of the mode memory. If Simon ditched that I bet he’d sell a lot more of these.

Cythras
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iamlucky13 wrote:
nick779 wrote:
Slim Pickens wrote:
Find the capacitor used for mode memory. Use a pencil to draw a line on the capacitor ‘s top to connect the leads with a conductive line of graphite. For more info search for “pencil trick.”

I was hoping for some assistance locating that, I’ll have to dig into it once I receive the light. It seems to have cleared customs and has been sitting at a distribution site for 3 weeks now.

DTales wrote:
You can also swap in a 17mm driver with whatever ui you prefer.

I keep forgetting this takes a 17mm driver…

I don’t think the pencil trick works on all drivers, as it should depend how they set mode memory.

If it is based on a capacitor, I would expect it to be a capacitor that has a trace leading either directly to or through a resistor to a pin on the microcontroller. However, I can’t tell from the picture on Convoy’s store which of the tan capacitors it would be. I would speculate either the one on the back side that is between two small resistors, or one of the two on the top side that is between the red wire and the microcontroller.

https://www.aliexpress.com/item/4000967149302.html?spm=2114.12010612.814...

Since this takes a 17mm driver, it occurred to me it is possible to swap in the 17mm SST-40 driver, do a spring bypass, and with a high drain 14500, have a remarkably high output light for the size: 5A even with a high CRI LH351D should be over 1000 lumens.

I bought one of the early ones with the blinky driver, and swapped in a 17DDM FET+1 driver into it with a CRI90 3000k XP-L 2 HD. It’s…. silly. I’m actually on my second LED, cause I fried the first one purple pushing the thermal limit Big Smile

Chronovore
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Makky-Kat wrote:
I wish a few of the mode groups in Biscotti were a little different (specifically I'd like a 0.1%-1%-10%-100% group), but and I'm about to swap a Convoy 7135 Biscotti driver into my T2 anyway. That'll get rid of Ni-MH support, but my other problem with the T2 is that none of the AA Ni-MH batteries I have actually fit, since the tube is maybe half a mm too narrow. Fix those two things, and it would be a chunky 14500 light but a decent one.

 

Sorry to hear about the NiMH issues. In addition to the nice balance of size, power, and run-times with AA, using Eneloops is a major draw for me.

 

Yeah, Biscotti isn't perfect. The twelve groups don't cover every want. It's just that they cover a whole lot of wants while simultaneously avoiding major deal-breakers. For me, group ten (1% - 10% - 35% - 100%) with no memory is close enough for everyday use. While I rarely deviate from this group, I like that I can change to a group with moonlight for camping or very long periods without access to electricity. I find tremendous value in both having all of those choices and being able to segregate just a few for a nice, simple, day-to-day mode order.

 

Given that I can get this freedom on reasonably priced tail-clickies with lots of emitter options has really helped Convoy to become my go-to for flashlight shopping. I like Sofirn but mostly for the AAA lights. Electronic switches and Anduril aren't my thing, except for maybe the rare circumstance in which I want candle flicker on an off-timer.

NeutralFan
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I bought the T2 driver in put it into a modified flashlight. I just use a Li-ion battery in it and the output is impressive!

It’s great that it can take both AA and 14500 batteries, but like others, I don’t like the memory mode. It seems that if given a choice to program memory mode or not, no memory mode would be the better. But maybe that’s not possible with the driver?

These would be the capacitors to do the pencil trick on.

I’d rather use my flashlight around the house than turn on the lights.

drewski
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I’ve had a T2 in 3500K sitting in my cart for months now. I’ve held off because of mode memory. I’ve kept it in my cart as a reminder to buy in case it’s offered without memory.

buck91
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NeutralFan wrote:
I bought the T2 driver in put it into a modified flashlight. I just use a Li-ion battery in it and the output is impressive!

It’s great that it can take both AA and 14500 batteries, but like others, I don’t like the memory mode. It seems that if given a choice to program memory mode or not, no memory mode would be the better. But maybe that’s not possible with the driver?

These would be the capacitors to do the pencil trick on.

!{width:50%}https://live.staticflickr.com/65535/51136555223_dfa0cf4086_b.jpg!

Has anybody tested this yet? My driver is currently soldered in a p60 pill and I don’t really feel like trying to wick all that solder out if its not going to work.

NeutralFan
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I just tried, but no luck unfortunately. Bummer!

I’d rather use my flashlight around the house than turn on the lights.

aan
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I ordered 17mm biscotti version.. I believe it have memory off function. but 5A will be too much for 10W led ☹️

lfb
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aan wrote:
I ordered 17mm biscotti version.. I believe it have memory off function. but 5A will be too much for 10W led ☹️

Just select Mode group 8 (max. 2.5A). What LED yours T2 is using?
aan
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lfb wrote:
aan wrote:
I ordered 17mm biscotti version.. I believe it have memory off function. but 5A will be too much for 10W led ☹️
Just select Mode group 8 (max. 2.5A). What LED yours T2 is using?

Actually i have S2+ xt-e 3000k and S21A CSLPM1

Going to upgrade the S2+ with CULNM1 with that 17mm biscotti.

Yess.. i did mode 7 on my S21A Wink