Originally Posted by collector1231
It is a large 1/8 truggy, 2S is not an option. I also wouldn't trust those cheaper Hobbyking and Hobbypartz batteries as well.
I don't know about any other battery Hobbypartz carries, but Gens Ace Lipos are my favorite. Best quality you can get for the money. Don't waste your money on the expensive Max Amps brand, or any brand that charges anything near $100 for a 2S lipo. I've got 5000mah 50C Gens Ace packs that are four years old and still almost like new. They were under $50ea.
I wonder about those HobbyStar packs at RC Juice. They do not state whether their packs are 2S1P or 2S2P. That makes a big difference. 2S1P means there are two 1S Lipo cells in parallel. 2S2P means there are two 1S cells that make up one cell, and there are two of those, meaning there are really FOUR cells in the pack. That's two extra internal connections. Extra internal connections mean extra internal resistance, which is not a good thing. In addition, if ANY ONE of those cells are not matched well to the others, or if one cell is just weaker, or the cells are of poor quality, the pack will heat up, puff, and just not last. I bought a couple 7200mah SMC 2S2P packs that, initially, were awesome. 25-30min run time, superior punch. But in less than a year
, the run times significantly decreased (like, by ten minutes), the packs got REALLY hot, and puffed. They were soon performing worse
than my 4-5 year old Gens Ace packs. They got the salt bath, and were tossed.
Most 5000mah packs are 2S1P. Stick with those. Most packs that are OVER 5000mah are 2S2P. And most decent packs SPECIFY on the label what they are, so if the pack doesn't state ON THE LABEL what it is, don't buy it.
Oh, and the 2S vs 4S thing....a lot of guys who run 1/8 scale that use 4S to 6S packs usually run two 2S packs or two 3S packs. This is done using a SERIES CABLE that connects the two packs in series and then to the ESC connector. Two 2S packs in series is the same as one 4S with respect to the voltage. See this video
Fluids. Start with 30wt silicone shock oil for the shocks. Grease doesn't really give you consistent performance in your diffs. I'd suggest an 8000wt diff fluid for the center diff, and 5000wt for the front and rears diffs as a starting point.