Well, first of all, what to get and what do I mean upgrade pack?
I mean what do you need to make your Ken Block RC car capable of 50+ Mph?!
You need to buy one more (6 cell) battery ( Traxxas Power Series for 1/16 cars, 7,2 Volt NiMH – TRX-2925), and a series connector (TRX-3063).
It doubles your voltage, so increases your speed. Important when you do this, you need to change to the bigger pinion (which is included in the original pack), otherwise you might fry your ESC, in 5 minutes…
If you get the parallel connector that will double your running time/mileage which won’t give you more speed, only run time. (Runtime is said to be around 20 mins with the standard single pack..)
So where can you get it?
Get it from Traxxas from the ‘BuyTraxxas’ website. Just enter the part number into the search box, the number only: 2925 or 3063 , and you can buy them online right away. Click here to go to the ‘BuyTraxxas’ website. (When I last checked it, the battery was out of stock, and was priced $24.50 . Unbelievable, everyone wants the fastest Ken Block gymkhana car )
To get it from Ebay.com put this in the search box: “traxxas 3063″ or “traxxas 2925″. When I checked there were plenty of them for sale, and I really don’t understand how, but they seem to be cheaper on Ebay than on the Traxxas website. Click here to check the battery on Ebay costing from $15.99 to $18.99
Click here to buy from Amazon. Battery price: $17.99 Series connector price: $6.07
(Whatever parts u wanna buy for your RC model car, keep in mind it might be worth to check the prices on more than one website.)
What if you want a Lithium-Polimer pack, which one? Well, I’ve found this in some youtube comments:
question: “Mike, which lipos did you get for the car. Just got my Fiesta yesterday and am keen to get some lipo action. Cheers, Matt”
answer: “Thunder Power 1350mAh 3s 11.V Pro Power 30C/60C burst – they fit and work great – seem to be very rugged for a soft pack – we use them in the 1/16 e revo and slash for bashing!”
I think there might be a few other solutions too, I don’t know all the versions tho
Traxxas says that the car is fully LiPo compatible with low-voltage detection for 2s and 3s packs, and rated for 6-12 NiMH cells.
More comments to this subject: “low voltage cutoff, is used to protect lipo battery voltage from dropping too low and damaging the pack. The mini VXL system has LVC for two cell and three cell lipos, but not four cell (which would be dual two cell packs running in series). Therefore, you must be cautious driving with the insane power of dual two cell lipos as the packs could be damaged… and the ESC gets hot during 4s driving. Check the Rally home page on the Traxxas site for ESC specs.”