Receiver battery

Are you using Receiver Battery(6.6V LiFe) with your 1 cell ESC?

I am now using LRP SXX V2 with 3.7v 6000mAh 60c. I felt the car lost control suddenly after playing for 3 to 4 minutes. I don't whether the supply voltage from ESC to Receiver cannot be maintained or not.

Thanks !!

My Lrp esc Stock Spec also had the same problem before, causing lost control.... unstable throttle and steering response. That cost me two servos broken] I think the problem is the bec output is unstable. If you still using that esc, I suggest u play with a receiver batter, otherwise change to other brand like Hobbywing 1S esc, that is very reliable, good luck!

yokomo 發表於 2011-5-11 09:18

                               
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Are you using Receiver Battery(6.6V LiFe) with your 1 cell ESC?

I am now using LRP SXX V2 with 3. ...

I am using LRP 4.0T octa and ESC setting (1,3,0,0) and I do not any issue by far. Could you tell us your setting on SXX v2?

no problem so far with 1s Lipo (3.7v).  According to the spec. LRP SXX v2 can provide constant 6V to receiver with input from 3.0v to 7.4v. Make sure you select the correct setting (1,x,x,x) for 3.7v

I am using HW 1s w/LRP 3.5.  No problem so far.  you may wants to add a cap to the receiver to stablize the BEC's voltage.  it should help....

回復 billy54321 的帖子

Do you think 6.6v LiFe 200 mAh is sufficient for playing 3 to 4 rounds?

Thanks All !!

回復 pcm118 的帖子

Ching, Thanks for your suggestion.

Setting for 3.7v is being used. I don't know whether it is the problem of Battery or ESC.

Thanks All !!

yokomo ching,
i suggest charge your receiver batt. once after max. of two plays, better once per play, for safety!! your car is much more expensive than your battery !!

回復 billy54321 的帖子

C Hing,

Thank you very much for your suggestion. What mAh of Receiver Battery you are using?

I used 200 mah lipo  with LRP TC spec esc.  b4, but I change to Hobbywing 1s now.

回復 billy54321 的帖子

C Hing,

If the receiver battery is being using, do u use the 6V supply from ESC? or u use them at the same time. I tried to disconnet the black wire from ESC to Receiver. Only white & red wires were connected from ESC to Receiver. It works but I am not sure whether this arrangement is correct or not.

Thanks All !!

回復 yokomo 的帖子

Hi

I used a LiFe 220mah on my pan car with 1S and brush ESC / motor.
With the rx battery fully charged, I can play 3 x 8min run safely. Most of time I charge between 4th and 5th packs.
http://ernrc.blogspot.com/2010/03/xray-12link.html
Hope this helps.

Ernest

yokomo 發表於 2011-5-12 13:12

                               
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回復 billy54321 的帖子

C Hing,

If I remember correctly, you should disconnect the RED wire between ESC and Rx (only white and black wires are used).  This way, you will disable the BEC function of the ESC since you are using an external battery source to power servo and Rx.

Thanks, hardmankam C Hing.

Yup, I did that too for my brush ESC - remove the red wire from ESC to rx when connecting to the rx batt. It works fine so far. But never try this on brushless ESC.

回復 ernestf 的帖子

Can I remove the Black wire instead of the Red one?

Thanks All!!

回復 yokomo 的帖子

I have no idea, never try ... sorry

回復 ernestf 的帖子

Thanks, I will try & let u know.