GT3B battery mod go to lipo

[m1009cucv]

here ya go:
Flysky FS-GT3B Battery Mod - Run Lipo instead of 8AA - YouTube

great idea. i use my gt3b for a few trucks. things seems to eat batteries. last a lot longer with a lipo of course.. hope this helps someone. ill be doing in a few hours

[Elmo]

How much drive time are you getting out of AA's? Are you using NiMH or alkaline? I am going to switch to lipo in mine shortly after it gets here and was going to use NiMH's until I can convert to use 3s lipo's in it.

[Meatwad]

I cringed when the guy chopped both wires at the same time from the lipo...

[gtxr]

Just make sure to do the VR mod for it and it will be fine!!

[m1009cucv]

not much time at all. i have 7 trucks on the one gt3b. gets used a lot. they are nimh 800. i want to go 3s too. i have a 7.4 1800 if it fits ill just use that.. whats a vr mod?

[Elmo]

Gonna need the 3s. The 2s you have is going to start out below the minimum voltage and only go downhill from there. The radio needs 12v or somewhere near it. Thinking about wiring in a low voltage alarm with mine to prevent the battery from over-discharging. I know that the radio has something built in to serve the same purpose, but I am too paranoid of lipo's to let anything happen, especially since the potential fire starter is in my hands!

[losikid]

Originally Posted by Meatwad

I cringed when the guy chopped both wires at the same time from the lipo...

x2... horrible solder job as well

[losikid]

Originally Posted by Elmo

Gonna need the 3s. The 2s you have is going to start out below the minimum voltage and only go downhill from there. The radio needs 12v or somewhere near it. Thinking about wiring in a low voltage alarm with mine to prevent the battery from over-discharging. I know that the radio has something built in to serve the same purpose, but I am too paranoid of lipo's to let anything happen, especially since the potential fire starter is in my hands!

with the new fimrware and the vr mod, you can run a 2s, the new vr has a min voltage of 6.5 volts

the new firmware also has a adjustable low power alar so you can set it to start beeping at any voltage

[losikid]

Originally Posted by m1009cucv

not much time at all. i have 7 trucks on the one gt3b. gets used a lot. they are nimh 800. i want to go 3s too. i have a 7.4 1800 if it fits ill just use that.. whats a vr mod?

Vr mod
FlySky GT3B Info and FAQ for hacks - OverkillRC

[Elmo]

Originally Posted by losikid

Vr mod
FlySky GT3B Info and FAQ for hacks - OverkillRC

Thanks for posting that up. If I can see to do it, I may go that route. 2s packs are even cheaper so its a win-win!

[gtxr]

I should ask? What firmware has the adjustable voltage cutoff?? And how do you adjust it? Thanks!!

[losikid]

Originally Posted by gtxr

I should ask? What firmware has the adjustable voltage cutoff?? And how do you adjust it? Thanks!!

Most of them...what firmware are you using?

Its adjustable in the global menu

[m1009cucv]

i will be doing the vr mod and buying my 3s later today

[m1009cucv]

how long do you think a 11.1 1000 lipo would last?

[gtxr]

Just running the 4.1 right now!. And might do the 6.0 soon.. But I will check in the Global settings then.. Thanks

[Meatwad]

Originally Posted by losikid

x2... horrible solder job as well

My soldering isn't any better so didn't wanna bring that part up haha

[ik632]

You need to edit the video to say not to cut the wires like that. You should always cut one wire, solder the connector, stick it in the plastic housing and then cut the second so you don't get arcing like that.

[losikid]

Originally Posted by ik632

You need to edit the video to say not to cut the wires like that. You should always cut one wire, solder the connector, stick it in the plastic housing and then cut the second so you don't get arcing like that.

Who are you referring too? I don't think any of us made that video

[m1009cucv]

i just got 2 7.4 1600 packs doing some trading. could i wire them together and power the radio? thanks

[losikid]

just use one