Plug-in Power Boost
Can I make my car faster by using a different battery?
Yes, absolutely—that’s the oldest speed-boosting trick in the book. What we’re really talking about is using a battery with more voltage, and the way to we get more voltage is by adding cells. Most ready-to-run cars include a NIMH packs with 6 cells. Each cell delivers 1.2 volts, and the 6 cells together provide 7.2 volts. Let’s say you’re getting 30mph using that 6-cell NIMH battery. Moving up to a 7-cell battery boosts voltage to 8.4 volts, and you can expect speed to bump up to about 35mph. If your car can hold an 8-cell battery with 9.6 volts, that should get you close to 40mph. If we’re talking Lipo batteries, fewer cells are needed for similar voltages. If a 2-cell (“2S”), 7.4-volt Lipo battery gets you 30mph, a 3-cell (“3S”) pack will bump voltage to
11.1 volts and should deliver 40mph (actual speeds in the real world will vary, of course). But there’s a catch to all this: You need to make sure your car’s speed control is rated for the higher-voltage battery you plan to use. So check those specs!
You can’t count cells as easily with Lipo packs, but all the info is on the label. Traxxas makes it extra easy to identify 2-cell and 3-cell packs. Traxxas 2S packs are blue, while packs with 3 or more cells are red.
The clear wrap on this Maxamps pack makes it easy to see the 7 individual NIMH cells.