Hi All,
Sent an email to the seller, i get this back from them:
"
Hi
This item has been used in many heng long tanks without any problem. I suspect your 4700 mah battery has caused the problem. It is recommended to use with heng long 1700mah battery.
You can send it back for refund if you do not like it, per our return policy
Regards"
Failed to answer my question. Looks to me an easy way out for the seller. And of course arrogant. Didn't expect that at all.
Originally Posted by
maxu52
Take a look at this thread and see if you think the Leo will perform similarly to the 99A. I got two of these motors for $7, including shipping. They're marked as 360SH motors, but I'm not sure if they're real Mabuchi motors or if they're the -2885 I was looking for when I found these. The tank in the video is running on stock HL gear (RX-18) but I haven't tried some of the punishing stuff like climbing steep grades.
http://www.rcuniverse.com/forum/rc-t...uad-video.html
Originally Posted by
CHIEFSONN
nexusys have you checked this video posted by maxu 52
360 Hi-torque Motors in Modern Tanks (A Squad Video) you haven't mentioned it and for the $7.00 & that includes shipping sounds like the cheep way to go and get the tank running. instead of burning the rx 18 in this one out or spending money for a transmitter to use the clark board, that you still don't know if it can handle these motors either
Yep, i just watched them, (was at work yesterday, so no go for youtube videos). That looks good, just what i was expecting to have. I got all the speed, but not when spinning, and climbing.....
Originally Posted by
heavyaslead
Sounds like stall current problem with motors drawing too much current for the ESC's.
Need to compare the motor data sheet with the stock motors and 'find' a motor with better torque/RPM that does not let stall current go through he roof!
This is the problem, i couldnt obtain this information from the seller.. see above response from them...
Originally Posted by
heavyaslead
5 times the torque usually means increased current draw (especially for one motor as in turning) and thus a bigger ESC is needed. The battery is good for all types of ESC's so don't worry on that.
This is what im considering.. an ESC that can handle this... any suggestion?
Originally Posted by
Imex-Erik
Yea I saw those "5x the torque!" motors and knew something like this would happen. An easy way to find out if you are pulling too much amps is to get a 5A auto fuse and hook it up between your motor and your motherboard. If you blow the 5A fuse you are pulling too much power. 5A is about max it can handle if I remember correctly.
That will be an experiment.... good suggestion, but i think we all drawn to mainboard is the culprit..... maybe...
I have found Lipo's are the battery to use in situations like this. The issue is more the battery then the ESC. If you use a lipo this issue will stop or fry your ESC if the motors are truly drawing that much amperage.
IN all the cases where I had tanks shutting down from to much amp draw( Brownout) the Lipo cured it every time, and to date all my RX18's are still fine.
Also what gauge wire are you using to supply the ESC from the battery.
Hey YHR, can you confirm this? i would consider to get LIPO instead...
I dont use any other wire apart from stock supplied stuff...
Originally Posted by
kizwan
Probably because the gears on rc car is much simpler, light weight chassis & almost zero chance to stall. I've never experience brown-out issue before though, in rc stuff. If I did, I would fallback to NiCD battery because it was design for heavy duty job. I mean cordless power drill also use NiCD battery.
@nexusys, you said "new high torque gears". Can you post a picture of that gears? It's not the HL Ultimate Edition II gb, is it?
Hey Kizwan, this is it... no brand or whatsover..
Thanks all for keep the topic rolling....!
