Originally Posted by CREWMAN
I am interested in buying a lipo receiver pack for my mtx4r. Whats everyones opinion. Do they last longer on a charge. I have a lipo charger so thats not an issue. What one do you guys recomend or do you not recomend them at all. I know its a novalty thing but they are lighter.
I have run lipo batteries for 3 years. I have a regulator/cut-off to protect the battery. In my opinion, there are 2 main advantages to lipos = 1) they are much lighter so you can add weight (if you have to) where you want it to enhance the handling of the car and 2) the servo speed is very fast right up to the instant that the low voltage cut off shuts off the system. I don't think that they last any longer because 1400mah is 1400mah regardless of if it is nicad or lipo. If there is a difference in time I don't think it is significant.
Be warned that these batteries can be dangerous. I have had to replace the batteries 2x due to damage caused by low voltage situations caused by a longer than normal storage period between race weekends. I suggest that you should charge your pack to about 1/2 capacity or more before storing the car between race weekends.
When my lipo packs went bad I did not realize that I had a problem until the charger shut off well before it should have when I attempted to recharge the car. It was at this point I removed the battery pack and found it PUFFED up and was HOT! I have heard horror stories of lipo fires created by batteries damaged by charging or physical damage.
Because of this I also started removing the battery pack from the car after a race weekend and storing it in plain view where I could see them during recharge.