Best 8S Battery Setup for Traxxas X Maxx & XRT Ultimate (2025 Editions)
If you're serious about unleashing your 2025 XRT or X Maxx Ultimate, forget oversized 8S bricks—a matched pair of 4S LiPos is the setup that just works. It’s what experienced drivers rely on when they want real 8S muscle without the fitment headaches. CNHL’s 4S LiPo batteries are built for the heavy 1/5 scale trucks like the XMaxx and XRT Ultimate. They hold voltage under throttle, punch hard when you need it, and don’t quit early.
Top CNHL 4S LiPo Battery Picks for 8S Builds
- CNHL Racing Series 9500mAh 14.8V 4S 90C (EC5) – This is the one serious bashers pick when they want both runtime and brute-force delivery. Two of these deliver unmatched 8S capacity.
- CNHL Racing Series 6200mAh 14.8V 4S 90C (EC5) – Mid-range option balancing weight, power, and flight time for all-around use.
- CNHL Racing Series 5200mAh 14.8V 4S 90C (EC5) – Lightweight and budget-friendly for casual driving or compact setups.
- CNHL G+Plus 6000mAh 14.8V 4S 70C (XT90) – A reliable choice with XT90 compatibility and solid punch-to-weight ratio.
Why the CNHL 9500mAh 4S Is the Best Choice for 8S Bashing
The CNHL 9500mAh 4S 90C is engineered for demanding setups like the X Maxx Ultimate and XRT Ultimate. Throttle wide open? No problem. This pack stays locked in, pushing full voltage without hesitation, even when your truck’s taking hits left and right and keeps your X Maxx flying without that sluggish power dip you get from weaker cells. Its EC5 plug ensures clean, low-resistance connections to the VXL-8s ESC.
Most drivers who run hard know the trick—pairing two CNHL 4S packs in series gives you a solid 8S setup that lasts well past the 30-minute mark. Furthermore, compared with low-capacity battery packs, they operate at a lower temperature. This battery pack lets your 2025 editions of the X Maxx Ultimate and XRT Ultimate tear through their full power band and can enjoy the "monster".
Frequently Asked Questions (FAQ)
Can I use a single 8S battery instead of two 4S packs?
Technically? Sure. Practically? Not so much. Most 8S batteries won’t even make it into the tray—and if they do, your rig’s gonna feel nose-heavy and awkward. Most single-pack 8S batteries are too large or heavy to fit comfortably in the X Maxx / XRT battery trays. Traxxas designed these trucks to use two 4S batteries in series for optimal fit, balance, and compatibility.
What's the difference between EC5 and XT90 plugs?
EC5 and XT90 both handle serious amps—but if you're running stock Traxxas gear, EC5 drops right in. XT90 gives more flexibility if you’ve got other gear in the mix. CNHL provides options for both—choose based on your ESC plug or adapter availability.
Can I mix different 4S batteries together?
No. Always use two identical 4S batteries (same capacity, brand, discharge rate, and age) when creating an 8S series. Mixing packs can cause imbalance, overheating, and damage to your ESC or battery.
Where can I learn more about CNHL batteries for XRT / X Maxx?
Check out our detailed guide: Best 8S LiPo for Traxxas XRT & X Maxx Ultimate