wats-on
04-18-2008, 07:39 AM
Hi, i have recently bought a Parkzone Spitfire and after my first flight decided to upgrade to a better battery to get me some extra power. I thought it was slightly lacking on a standard battery and ive heard people raving how good lipo batterys are.
So ive popped down to my local model store and asked about an upgrade, the battery the guy gave me was a Thunder Power3 Cell 2100 mAh "Pro Lite" 11.1V LiPoly, and of course a balance charger for it.
Once i got home I neatly soldered the correct connector on, and set the reciever for a 3 cell lipo. I fully charged the battery and gave it a test (not flying), all seemed fine. So I dissconected the bat, and left it for the next bit of good weather to fly.
Anyway the next evening some relatives popped in, i was showing the Spit to them, I decided to connect the battery and let the see how powerful the thing was when you put her on full throttle. So ive turned on the TX and gone to conect the lipo, as ive started the put the connector together I heard the usual twitch of the servos but then... I started to smell burning and the prop started to turn, I looked at the reciever and it was glowing and smoking!! so I dissconected straight away. After taking the wings off and removing the RX I could see the internal components were conpletely burnt out!!.
Does anyone know why this might have happened? I notice there is a bridge on 2 of the pins for the batt on the reciever, however the parkzone instruction manual says that this is set to variable and it is not wise to remove it! so i didnt. However i did get told by a fellow flyer that you should do something with this, remove it, or change it!?Any ideas?
Thanks for any help guys, ive just bought a new reciever and dont want it going up in smoke as soon as i plug it in, at nearly £40 a time that will prove rather costly! lol.
Steve.
So ive popped down to my local model store and asked about an upgrade, the battery the guy gave me was a Thunder Power3 Cell 2100 mAh "Pro Lite" 11.1V LiPoly, and of course a balance charger for it.
Once i got home I neatly soldered the correct connector on, and set the reciever for a 3 cell lipo. I fully charged the battery and gave it a test (not flying), all seemed fine. So I dissconected the bat, and left it for the next bit of good weather to fly.
Anyway the next evening some relatives popped in, i was showing the Spit to them, I decided to connect the battery and let the see how powerful the thing was when you put her on full throttle. So ive turned on the TX and gone to conect the lipo, as ive started the put the connector together I heard the usual twitch of the servos but then... I started to smell burning and the prop started to turn, I looked at the reciever and it was glowing and smoking!! so I dissconected straight away. After taking the wings off and removing the RX I could see the internal components were conpletely burnt out!!.
Does anyone know why this might have happened? I notice there is a bridge on 2 of the pins for the batt on the reciever, however the parkzone instruction manual says that this is set to variable and it is not wise to remove it! so i didnt. However i did get told by a fellow flyer that you should do something with this, remove it, or change it!?Any ideas?
Thanks for any help guys, ive just bought a new reciever and dont want it going up in smoke as soon as i plug it in, at nearly £40 a time that will prove rather costly! lol.
Steve.