Why the Right Battery Matters for RC Crawlers
Trail crawling isn’t about top speed—it’s about torque, runtime, and control. A reliable crawler LiPo battery holds voltage steady at low throttle, letting your TRX-4 or SCX10 clear obstacles with confidence and your SCX24 run longer between swaps.
Recommended Specs for Popular RC Crawlers
RC Crawler Battery Ranges at a Glance
- SCX24 Micro Crawlers: 2S 350–1500mAh • 30–70C • JST-PH / micro-Losi plugs
- 1/10 Scale (TRX-4, SCX10 II/III): 2S 4000–6600mAh • 30–120C • EC3 / XT60 / Deans plugs
- High-Torque Builds: 3S 4000–8000mAh • 70–130C for extra punch (electronics must support 3S)
Pro tips: Most crawlers benefit from lower C-rated packs for smooth power delivery, but higher C gives reserve torque when climbing. For trail days, prioritize capacity (mAh) for runtime over outright burst power.
Popular RC Models That Use These Batteries
These crawler packs are proven with Traxxas TRX-4, Axial SCX10, SCX24, Redcat Gen8, and similar rigs. Double-check your tray size and connector type before purchase to avoid fit issues.
Build Tips from Crawler Drivers
- Go for runtime: Crawling is endurance—bigger mAh means more trail time before swapping packs.
- Voltage choice: 2S packs keep it scale-accurate and smooth. 3S crawler batteries add wheel speed and torque if your ESC and motor can handle it.
- Connector care: Keep EC3, XT60, or Deans solder joints solid—poor connections kill torque delivery on climbs.
FAQ: RC Crawler Batteries
Q: Should I use 2S or 3S for my TRX-4?
For scale driving and long trail sessions, 2S crawler LiPos are the go-to. If you want extra wheel speed and torque for harder climbs, a 3S crawler battery gives the edge—just monitor temps.
Q: What’s the best battery for SCX24?
Most SCX24 owners run 2S 350–900mAh packs with JST-PH plugs. They fit the tight tray and balance runtime with weight.
Q: How much capacity do I need for SCX10 or TRX-4?
4000–6000mAh 2S LiPos are the sweet spot—long trail sessions without adding too much weight. If you’re going for marathon runs, step up to 6000mAh+.
Looking for more RC car battery options beyond crawlers? Visit our full CNHL RC Car Batteries collection.