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06.01.2009, 10:04 PM
The spark is from charging the caps on the esc. I don't think the battery could prevent the spark unless it's REALLY poor..... but it's not something I have ever thought about before.
btw, have you tried running the 4s setup again???
Jammin CRT MM/Neu 1515 1700kv
Losi 8IGHT MM/Neu 1512 1900kv
Kyosho 777
T4 MM 5700
B4 LRP
XX4 MM 7700
old losi xxcr, MM4600 4s lipo 70mph+
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