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
- Best stock-tray drop-in: EcoPower Trail 2S 450mAh 30C. Around $25.
- Best dollar-per-mAh: CNHL MiniStar 900mAh 2S 30C, around $11 each in a 2-pack.
- Best brand for cell quality: Gens Ace Adventure series.
- Best for brushless / high-output: Helios RC 2S 600mAh 45C.
- 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.
- 30C or higher discharge rating. The stock ESC pulls up to 10A; 30C on a 350mAh pack is right at the limit, so always buy 30C+.
- Physical size: stock tray fits packs up to roughly 56×30×14mm. Bigger needs an aftermarket tray.
Stock-tray-fit packs (no chassis mods)
- Spektrum SPMX3502S30 (stock). 350mAh 30C. The pack your truck shipped with. Around $20 to $25. Buy two more, you're done.
- Dynamite DYNB0012. 350mAh 30C. Rebadged Spektrum. Identical, sometimes cheaper.
- Venom Power VNR15206. 430mAh 30C. Drop-in stock fit, +25% capacity. Around $22.
- 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)
- Helios RC 2S 600mAh 45C. Around $28. Tighter fit, sometimes needs a slight tray bump. 45C is overkill for stock but ideal under brushless.
- CNHL MiniStar 900mAh 2S 30C. Around $22 for a 2-pack ($11 each). Fits the stock tray on Jeep, C10, Bronco, and Deadbolt bodies. Roughly double the runtime of stock. My personal pick for cost-effective trail packs.
- 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.
- Yeah Racing aluminum tray. Similar concept, slightly wider.
- 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. 3S is a comp path that requires aftermarket ESC, brushless motor, hardened gears, and often metal axles. Stay on 2S until those are done.
How many packs to buy
Two minimum. Three or four if you have the budget. Run time on upgraded packs is 20 to 45 minutes per session depending on how you drive. Having a rotation 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 (CNHL via ChinaHobbyLine, EcoPower via AMain, Gens Ace via their site).
- Avoid no-name Amazon 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.