- Out of stock
7.4V 660mAh 2S LiPo Battery, 40C, SCX24
• Specifications: 52 × 30 × 10mm / 2.07 × 1.17 × 0.39in; 26g / 0.91oz; 660mAh; 7.4V (2S LiPo); 40C burst / 20C continuous discharge; PH2.0 plug.
• Designed for AXIAL SCX24 Burst: This 2S 660mAh LiPo battery is the stock-capacity replacement for the SCX24 Burst, a 1/24-scale RC rock crawler. The 40C burst rating (~26A peak) and 20C continuous rating (~13A sustained) match the draw of the AXIAL SCX24's toy-grade ESC and motor, delivering consistent power through climbs, rock crawling, and full-throttle without voltage sag.
• Also Compatible With: Any 1/24-scale or smaller RC toy crawler or buggy that uses a 7.4V (2S) LiPo pack with a PH2.0 connector and a battery bay fitting 52 × 30 × 10mm. Not suitable for 1/18 or 1/10 scale vehicles — the dimensions and plug pitch do not match.
• 660mAh vs 1150mAh: This 660mAh pack (10mm thick) is the standard stock-capacity option for the SCX24 Burst. For longer run time, consider our 2S 1150mAh PH2.0 version (18mm thick), which fits the same battery bay.
⚠️ Before Ordering — Verify 2 Things:
• 1) Your RC car's battery bay fits 52 × 30 × 10mm (including PH2.0 plug clearance).
• 2) The battery plug is PH2.0 (two-pin, 2.0mm pitch). If either doesn't match, this pack will not fit without an adapter.
• Package: 2× 2S 660mAh 7.4V 40C LiPo batteries (PH2.0 plug), 1× USB charger cable, 1× retail carton, 1× user manual.
Frequently Asked Questions
Is this battery compatible with the SCX24 Burst?
Yes. This 2S 660mAh 7.4V LiPo battery with a PH2.0 plug is a direct stock-capacity replacement for the SCX24 Burst (1/24-scale RC rock crawler). The 7.4V voltage, PH2.0 plug, and 52 × 30 × 10mm dimensions all match the SCX24’s battery bay. No modification needed.
How is this 660mAh battery different from the 1150mAh PH2.0 version?
The two packs are identical in voltage (7.4V), C rating (40C burst / 20C continuous), plug type (PH2.0), and intended use (SCX24 Burst). The differences are capacity and thickness: this 660mAh pack is 10mm thick and weighs 26g, while the 1150mAh version is 18mm thick and weighs 52g. In practical terms, the 660mAh gives you roughly 3–8 minutes of mixed driving, while the 1150mAh gives roughly 5–15 minutes. Choose 660mAh if you want the original stock capacity and lighter weight. Choose 1150mAh if you want longer run time and your battery bay has the extra 8mm of space.
Can I use this battery in other RC cars?
Yes, if the vehicle uses a 7.4V (2S) LiPo battery with a PH2.0 connector and the battery bay fits 52 × 30 × 10mm. It works with other 1/24-scale toy crawlers and buggies. It is NOT suitable for 1/18 or 1/10 scale vehicles — the dimensions and plug pitch do not match.
What is a PH2.0 plug? How is it different from JST, XT30, or PH2.54?
PH2.0 is a two-pin connector with a 2.0mm pin pitch and a compact housing. It is NOT interchangeable with JST (wider housing, different pin spacing), PH2.54 (wider 2.54mm pitch), XT30 (larger two-pin with different shape), or any other plug type. Remove the stock battery from your car, measure the pin spacing, and confirm it reads 2.0mm before ordering.
What does 40C burst / 20C continuous mean for this battery?
40C burst means the pack can safely deliver approximately 26A for short durations (3–5 seconds) during aggressive climbs or full-throttle bursts. 20C continuous means it safely sustains approximately 13A during normal crawling and driving. For 1/24-scale toy-grade RC cars like the SCX24 Burst, this comfortably covers the draw of the stock ESC and motor.
How do I charge this battery?
This pack includes a USB charger cable. Plug one end into a USB power source (wall adapter, power bank, or PC USB port rated 5V / 1A minimum) and the other into the car’s charging port or directly into the battery’s PH2.0 plug. Full charge at 1C (~0.66A) takes approximately 60 minutes. Do not leave unattended while charging.
Can I charge this with a LiPo balance charger instead of the USB cable?
No. This is a 2S toy-grade LiPo pack with a PH2.0 plug, not a balance-lead LiPo battery. A standard 2S LiPo balance charger (with JST-XH or XT60 leads) will not fit the PH2.0 connector on this pack. Use the included USB charger cable.
How long does the battery last per charge during actual driving?
A 660mAh 2S pack at 20C continuous (~13A) will last roughly 3–8 minutes of mixed driving depending on terrain, motor load, and throttle usage. On flat ground with moderate throttle, expect the longer end; on continuous rock crawling, sand, or full-throttle on inclines, expect the shorter end. If the pack drains in under 2 minutes consistently, contact us for a warranty check.
How many charge cycles can I expect?
Under normal use with proper practices (avoid deep discharge below 6.0V, store at 40–60% charge), expect up to 200 cycles before noticeable capacity fade. For daily toy use, this translates to roughly 6–12 months of regular play. If your pack is still holding charge past 150 cycles, it is performing within spec.
Is it safe to leave the battery in the car when not in use?
For short periods (same day), yes. For overnight or longer storage, remove the battery from the car and store it at 40–60% charge in a cool, dry place away from direct sunlight. Do not store fully charged or fully drained for extended periods — both accelerate capacity fade.
What comes in the box?
2× 2S 660mAh 7.4V 40C LiPo batteries (PH2.0 plug), 1× USB charger cable, 1× retail carton, 1× user manual.