Originally Posted by charliebill
I purchased a Terremoto and i really like this truck! I haven't had any issues at all. The biggest problem im working on is the Diffs are not tuned at all and yes all the power goes to the front. I just had a question that for some reason i cant find the answer to... I'm relatively new to the lipo world and this truck... If someone could help that would be great. The stock batteries are 7.4 2c lipo batteries. In the specs it says you are able to use 3s and 4s batteries. With the 80amp ESC, does it still need to be 7.4V? If so can someone tell me where to find them lol. I cant! I love the truck but i am in the process of tuning the Diffs and i want to upgrade the batteries but dont want to destroy the truck. THANKS!
The stock ESC's battery plug wires the 2 batteries in series....so your two 2s 7.4v lipos total 14.8v at the ESC. (4s)
You can run a single 3s 11.1v lipo pack by making a jumper to go on the other plug.
Or you can runs a single 4s the same way...tho a 4s lipo is not likely to fit in the stock battery holders.
The best bet is to buy a pair of 2s 7.4v lipos. I think the stock packs are 20c, 3600mah. "C" is the discharge amount. MAH is the capacity (and thus runtime)
Hobbypartz.com has some good lipos are good prices. I like their skylipo and gens ace brand packs. Look for packs that are 7.4v, 30c, 5000mah. Such a pack will add some runtime and a tad bit more power as well.
Note: lipos come in 2 main forms, soft case and hard case. Your stock packs are hardcase. As the name implies, the case is hard which protects the cells inside incase of a nasty crash or the packs flying out of the truck cause you forgot to secure them. Most common 5000mah hardcased packs are only a tad thicker than your stock packs and should fit.
Note to the way in which the wires exit the pack. some have the wires out of the end, others on the side. I believe your stock packs they com out the side/top. So it would be best to buy packs that have that same style of wiring.
Most of the packs on hobbypartz already have the same type of battery plug your truck uses, so you should be all set there.
Hopefully that answers your question.
Glad to hear you like the truck. I used to be a redcat dealer and generally like what they bring to the table in terms of affordable entry level rigs. Get some 300,000 diff oil and put that in the center diff...that should likely cure the symptom of all the power going to the front wheels.