This capacitor module (/cap pack) is for “upgrading” your car ESC. With this cap pack, the start-up acceleration of your vehicle will be greatly improved. Besides, the great ripple current endurance significantly reduces the generated interference due to the rapid ON/OFF of the ESC power tube.
NPC: Non-Polarity Capacitors SMT-MLCC
NPC for XR10 PRO G2 ESC Modified & Stock Racing
NPC for XR10 PRO G2 ESC Stock Racing
Specifications Stock or Modified Power Capacitor
Why are there multiple power caps, aren't bigger power capacitors always better? For some racers, size and weight is crucial component of their racing program. In that regard, there are "smaller" lighter weight Stock style power cap modules that offer an improvement over the standard capacitors, without the added size and weight of the full size modified power cap modules. These can be used in the popular "stock" or "Spec" class racing. If size and weight are not a concern, the larger "Modified" power cap modules are the way to go. If you have size, fit, or weight topics that are of major concern, the "Stock" power cap modules are the way to go.