| 本帖最後由 hk_sdu 於 2009-7-16 19:06 編輯 
 i have a lipo cut off, KWS selling at $35. Full battery with 3 green light on, then 2 light on, if it is lower than 3.7V. The red light is on and with beep beep sound (power source will not cut off), u will not hear if the car is far. But i found it useless ....
 
 Better buy $50 one with voltage display and just stop to play at around 3.8 volt if u want to treat your lipo better.
 
 Or use lipo cut off from your ESC build in
 
 some expert c-hing, just play for 5 mins and stop, of course they know the battery will stay on or above 3.8v.
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