Granite blx goes into limp mode after 50yrds. LVC doesn't kick in unless I hit full throttle. Batteries fully charged. I can turn it off and on and run it for another 10min. I've read that the savox servo could be draining it, but this is basically straight line run with fresh battery (3s reaction 5000mah)
Granite LVC at full throttle
- Thread starter Haymaker
- Start date
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what is ur connector on ur battery, are u using any adaptors, they cause restriction.
- Thread starter
- #3
I did use ec5 to xt60 adaptors. I even had one fail at the solder point. They ran fine for months on those adaptors flawlessly before that. Sadly the problem persists with just esc5 connections and no adaptors. Do lipos fail like nicad batteries when maximum load is applied? I haven't counted the cycles but I've used them regularly since January.
no if u don't have any adaptors then i don't know the cause. Im going to call horizon about mine and ask for explanation
This is what I was thinking, if it is an older pack. Battery just can't supply the amps at WOT, so the voltage drops, and LVC kicks in.
- Thread starter
- #7
So horizon responded quickly with a brand new esc. I bought a good quality 50c 5200, and swapped out a new motor. I picked up a venom cell tester. The limp mode kicks in at 3.8 Volts pretty much across the board. Same deal usually on a full throttle run. I'm going to swap the servo next.
It's just battery sag. When it happens wait 5 mins and it will be as good as new
- Thread starter
- #9
Thanks for the tip. Do I let it rest with the truck on,or turn it off?
Just unplug and let it sit for 2-5 mins. There should be less sag and u should be good to go. I have 2 blx185's. With them, I don't have any issues with sag. Try to get your hands on 1! ?
- Thread starter
- #11
So... I think I figured it out. I was able to get my granite in action. So basically it came down to maintenance. I was not charging my lipos properly. I assumed charging them with the balance plug in was concidered balance charging (dumb mistake). So with a couple cycles I was able to balance out the batteries (mostly). I attempted some individual cell balancing as well.
Then there was maintenance neglected on the vehicle. I opened every sealed bearing, cleaned and repacked. I also cleaned out my diffs and swapped the oil. Some of my bearings (rubber sealed from Jim's) were locked solid. So all this combined I believe drew too much power and killed improperly balanced lipos. I learned a lot and the diffs weren't as scary as I thought. Glad to have my truck back!
Then there was maintenance neglected on the vehicle. I opened every sealed bearing, cleaned and repacked. I also cleaned out my diffs and swapped the oil. Some of my bearings (rubber sealed from Jim's) were locked solid. So all this combined I believe drew too much power and killed improperly balanced lipos. I learned a lot and the diffs weren't as scary as I thought. Glad to have my truck back!
RackwitzG
Active Member
Hmm, doesn't sound promising for me. Probably the next thing that will break on mine after the servo. Enjoy your runs.
