4S Lipo Battery, 14.8V Lipo Battery 6500mAh 60C Soft Case Compatible with Maxx X-Maxx RC Buggy Truggy Crawler Monster Truck Car Vehicle, Helicopter, Airplane (2Packs)

Description
Youme Power 4S 6500mAh 60C LiPo battery, 2-pack. Delivers 14.8V nominal,with 10AWG silicone wires.Available with three connector options—TRX, EC5, or Deans T(depending on your needs)—making it highly versatile.

Specifications

    Brand: Youme Power 
    Chemistry: Li-Polymer (soft case)
    Configuration: 4S (4 cells) 
    Nominal Voltage: 14.8V
    Max Voltage: 16.8V (4.2V/cell) 
    Min Voltage: 12.8V (3.2V/cell)
    Capacity: 6500mAh
    Discharge: 60C
    Charge Rate: 0.5C–1C (3.25A–6.5A)
    Balance Plug: JST-XH-5P 
    Discharge Plug: TRX / EC5 / Deans T
    Wire: 10AWG silicone 
    Dimensions: 155*50*38mm (±3mm)/ 6.10*1.97*1.50inch
    Weight per pack: 574g(±15g) / 1.27lb / 20.25oz
    Certifications: CE, ROHS, MSDS, UN38.3

What’s Included
2 × Youme 14.8V 6500mAh 60C 4S LiPo Battery (Soft Case)

Compatibility

•     Traxxas X-Maxx
•     Traxxas Maxx
•     Other 1/8 & 1/10 vehicles with battery tray fitting approx. 155×50×38mm. Verify dimensions and connector type.

FAQs

Q: What does “4S 14.8V 6500mAh 60C” mean?
A: 4 cells in series give 14.8V nominal. 6500mAh capacity. 60C means discharge rate.

Q: Will it fit my X-Maxx or Maxx?
A: Yes, direct fit. Dimensions are 155×50×38mm. For Traxxas ESCs, select the TRX connector option.

Q: Can I choose the discharge connector?
A: Yes. Options are TRX, EC5, or Deans T. Pick the one matching your ESC.

Q: What charger and charge current should I use?
A: Use a 4S-capable LiPo balance charger. Charge at 0.5C–1C (3.25A–6.5A). 1C (6.5A) is recommended for good balance of speed and lifespan.

Q: How long to charge?
A: At 1C (6.5A), a fully discharged pack takes ~1 hour. At 0.5C, ~2 hours.

Q: What voltage should I stop at?
A: Never go below 3.2V/cell under load. Set ESC low-voltage cutoff to 3.4–3.5V/cell for battery longevity.

Q: How do I store these batteries?
A: For storage over 48 hours, set to 3.8V/cell using a charger’s Storage mode. Keep in a fireproof LiPo bag, cool and dry.

Q: Why 10AWG silicone wire?
A: Lower resistance, cooler running, and flexible even under extreme loads, delivering more power to the motor.

Q: Can I run two packs in series or parallel?
A: Yes, but only with identical packs (same brand, capacity, C-rating, cycle count). Use appropriate harnesses and check ESC voltage limits.

Q: What if the battery swells or gets damaged?
A: Stop using immediately. Place it in a fireproof container and take to a battery recycling center. Do not puncture—fire hazard.