Got this in a trade, basically for about $50. Don't know anything about nitro. What exact model is this? What exactly do I need to update the radio system? What is this
NEW TRAXXAS T-MAXX 3.3 EZ START 7.2v 1800MAH POWER CELL BATTERY & CHARGER REVO | eBay
Traxxas T-Maxx Classic RTR Monster Truck (Black) w/TQ 2.4GHz Radio, EZ Start Battery & DC Charger - JJ Customs, LLC.
4-Cell Battery Holder | Traxxas
EVO-4 Type II Battery Box for Traxxas T-Maxx 3.3 (4907, 4908, 4909, 4910 v3 v4) for R/C or RC - Team Integy