SCX24 battery shopping is simpler than it looks. The stock truck is a 2S platform. Any 2S pack with a JST-PH 2.0 plug and a JST-XH balance lead will work. The question is capacity, brand, and physical fit. Here's what I actually buy. For chemistry, charging, and safety, see the battery and charger guide.
The quick verdict
- What I run: Tattu 300mAh 2S 75C. Around $7 on Amazon, 15.5g, and more current than any SCX24 setup needs.
- Premium pick: Tiny Terrains 200mAh 2S. Around $13. The smallest, lightest pack here, best on light builds.
- Best stock-tray drop-in for more run time: EcoPower Trail 2S 450mAh 30C. Around $25.
- Best brand for cell quality: Gens Ace Adventure series.
- Stock replacement (if you want exact-fit aesthetics): Spektrum SPMX3502S30.
What every SCX24 pack needs
- 2S (two cells, 7.4V nominal). The stock ESC is 2S only.
- JST-PH 2.0 discharge plug. The small white 2-pin connector with 2mm pitch.
- JST-XH balance lead. Standard 3-pin balance plug.
- Enough current. Capacity times C rating is roughly what a pack can deliver continuously. The Tattu (300mAh at 75C) is around 22A, plenty of headroom for anything. A lower C pack like the Tiny Terrains (20C, around 4A) is best on light builds where weight matters most. The heavier the rig and the harder you push it, the more headroom you want.
- Physical size: stock tray fits packs up to roughly 56×30×14mm. Bigger needs an aftermarket tray.
Stock-tray-fit packs (no chassis mods)
- Tattu 300mAh 2S 75C. My pack. 2S LiPo, JST-PHR plug, 44×15×12mm, around $7.
- Tiny Terrains 200mAh 2S. 7.4V, 20C, 40×17×9mm, around $13. Made for the SCX24 and SCX30.
- Spektrum SPMX3502S30 (stock). 350mAh 30C. The pack your truck shipped with. Around $20 to $25. Buy two more, you're done.
- EcoPower Trail ECP-4015. 450mAh 30C. The mainstream upgrade. Around $25. Around 29g, fits stock tray, well-respected cells.
- Gens Ace Adventure GEA354002SJS. 400mAh 35C. Quality Gens Ace cells, stock-tray fit. Around $22.
Bigger packs (most need an aftermarket tray)
- Gens Ace Adventure 1100mAh 2S 35C. Around $32. Requires an aftermarket battery tray (RCAWD aluminum or 3D-printed). Big runtime jump.
- INJORA / VICMILE 800mAh 2S. Around $12 to $18. Budget Amazon options. Check reviews carefully; quality varies batch to batch.
Battery tray options for bigger packs
- RCAWD aluminum tray (SCX2452). Drop-in alloy tray, fits packs up to around 70mm long. Around $15.
- 3D-printed LCG tray. Dozens of free designs on Printables. If you have a printer, $5 of filament does it.
Charging gear (covered in detail elsewhere)
The stock USB charger should be replaced. I run a Tenergy TB6-B with a PH 2.0 adapter cable. ISDT Q6 Nano and HOTA D6 Pro are the other community standards. Full coverage in the battery and charger guide.
Don't do 3S on a stock truck
The stock SCX24 ESC is 2S only. 3S will fry it. Stay on 2S unless you're sure your ESC and motor can handle 3S. That usually means an aftermarket ESC, a brushless motor, hardened gears, and often metal axles.
How many packs to buy
Two minimum. Three or four if you have the budget. Small, light packs like the ones I run trade run time for weight, so a rotation matters even more. It means more crawl time and less waiting at the charger. Cheaper to buy three packs upfront than to lose a session because your one pack is dead.
Sourcing tips
- Buy from real hobby retailers (AMain, Horizon, RPP, Tower) or directly from the manufacturer (Tiny Terrains direct, EcoPower via AMain, Gens Ace via their site).
- On Amazon, stick to established brands like Tattu and avoid no-name sellers with thousands of reviews on a single SKU. Counterfeit LiPos exist and they catch fire faster than real ones.
- Buy fresh stock. Packs sitting on a warehouse shelf for two years aren't great.
- Don't store packs at full charge for more than a few days. Storage voltage (3.8V/cell) is what keeps them healthy long-term.
Where battery upgrades sit in the overall plan: Stage 4 in the staged upgrade path, but often worth doing earlier alongside the charger.