11.1V 9000mAh 3S Cell 60C-120C LiPo Battery Pack w/Traxxas High Current Style Connector (Fits X-Maxx, Slash 4x4 & 2WD, XO-1, Rally) Vant Batteries offer an excellent value by providing factory direct pricing and quality that meets or exceeds that of other major battery manufacturers. Vant Batteries go through strict testing and quality control procedures in order to provide extremely accurate mAh, Voltage, and C ratings. Don't let their low cost fool you, these batteries outperform major manufacturers batteries!! WARRANTY: Vant Batteries are warranted to be free from defects upon delivery to the customer. They are warranted against failure for a period of 6 Months from the date of purchase. Misuse, abuse, or neglect by customer is not covered in this warranty. After the 6 Month warranty period, the Lifetime Replacement Plan takes effect. Under the Lifetime Replacement Plan, you can send in your battery to receive a replacement for 50% off the RETAIL price of the battery. COMPATIBLE WITH: Traxxas X-Maxx, Slash 4x4, Slash, Rally and other vehicles that have extended battery trays with a length of 155mm. Be sure that your Vehicle/ESC/Speed Controller accepts 11.1V batteries. (Extended Battery Strap may be required.) Please check with your Speed Control's manual to determine if it can accept 11.1V batteries. Use the size specifications below to determine if this battery will fit your application. This is the new 11.1V 9000mAh 60C-120C LiPo battery from Vant. It's designed specifically for Traxxas vehicles with longer battery trays such as the X-Maxx, Slash 4x4, and Slash. This is an OEM replacement battery for the Traxxas 2878 battery. It has the same Voltage and Same Size. But it offers a higher mAh rating for increased run-time. It also has a much higher C-Rating for more power output and motor response. NOTE: Most batteries are about 25mm in height. *Note that due to the ~43mm height of the battery, an extended battery strap may be needed for some vehicles. Please contact us or ask a question about this product if you need assistance in this area.