Quick Fit Check
The CNHL Innovation RC Extreme Series 120C 11.1V 3S 12500mAh LiPo Battery with QS8 Plug is a large-format 3S high-capacity battery designed for RC users who want maximum runtime, strong current delivery, and a connector system built for serious power handling. It is best suited to heavy-duty surface RC applications already designed around a 3S power system and large battery layout.
Before ordering, check four things first: your model should support 3S voltage, the battery area should fit this oversized pack’s dimensions, the power system should match a QS8 connector, and the chassis should be comfortable with a battery weighing about 888g. If those points line up, this battery can be a very strong option for users who want one of the biggest and longest-running 3S solutions in this class.
Product Specifications
| Capacity |
12500mAh |
| Voltage (S/cell) |
11.1V / 3S2P / 3 Cell |
| Discharge Rate (Continuous/Burst) |
120C / 240C |
| Output Connector |
QS8 Plug |
| Dimensions (L × W × H) |
168 × 45 × 56 mm |
| Weight |
Approx. 888g |
| Charge Rate |
5C Max |
| Balance Connector |
JST-XH-4P |
| Wire Gauge |
7 AWG |
| Stock Number |
12501203QS8 |
What Makes This 12500mAh 3S Battery Different
A 12500mAh 3S LiPo battery with QS8 is clearly not a normal replacement pack. It is designed for users who want one of the biggest 3S battery formats in this style, with very high capacity, strong current capability, and a connector system ready for more demanding builds than mid-size plug formats are meant for.
The most obvious difference is capacity. At 12500mAh on 3S, this battery is built for users who want maximum runtime, fewer battery changes, and a much larger energy reserve than a standard 3S pack can offer. The QS8 connector and 7 AWG wire reinforce that role by placing the battery firmly in a more serious power-system category.
The 120C discharge rate also matters here. On large or heavy 3S applications, a weaker battery can start to feel soft when the demand rises. This pack is intended for users who want 3S voltage with strong current delivery and a more forceful, stable feel under load.
Applications
This battery is best suited to high-capacity 3S surface RC applications, especially where maximum runtime, current support, and a large-format battery layout are already part of the intended build. It can make sense in modified trucks, heavier-duty street or speed-focused projects, endurance-style setups, and other RC applications where a normal 3S pack is simply too small for the job.
Because of its QS8 connector, greater case height, extra length, and much heavier weight, this battery should be viewed as a specialty 3S option rather than a general-purpose replacement battery. It fits most naturally in builds where battery size, balance, connector choice, and power demand have already been planned around a larger-format pack.
That is the real purpose of this product. It is not meant to be the most universal 3S battery in the lineup. It is designed for users who specifically want a bigger, longer-running, higher-current 3S solution.
Part of the CNHL Innovation RC Extreme Series
This battery is part of the CNHL Innovation RC Extreme Series, the most powerful battery platform CNHL has made to date. Built around speedrun-focused power delivery, heavy-duty wire, and QS8 hardware, this series is aimed at advanced RC users who need stronger current transfer and less compromise in extreme high-load setups.
It is not positioned as a general-purpose pack for casual use. The Innovation RC Extreme Series is better suited to serious speedrun cars, drag-style builds, and other demanding RC platforms where connector quality, solder integrity, and total system resistance all play a real role in performance.
Important Notice for High-Power Use
For proper power transfer, this battery should be used with appropriate high-current connector hardware such as QS8, 8mm bullets, or larger ESC-side connectors. All solder work must be solid, as every soldered connection matters in extreme current applications.
For maximum performance, experienced users may cycle the pack 2 to 3 times and warm it to around 105-110°F before hard running. This battery is intended for advanced use. Please use at your own risk.
Where This Battery Makes the Most Sense
This battery makes the most sense in RC setups that are intentionally built around larger 3S packs, especially where runtime, power consistency, and connector strength matter more than keeping the battery compact. Users looking at a battery in this class are typically choosing a very specific setup direction rather than a normal replacement battery.
That is why fitment matters so much here. With a battery this size, the key checks are not only voltage, but also tray length, battery height, total weight, and connector format. For the right setup, the extra capacity can be a major advantage. For the wrong setup, it is simply more battery than the chassis was intended to carry.
Large-Format 3S Fitment Direction
This battery may be relevant to powerful and larger-format RC surface builds, including certain speed-run, street, truck, and custom projects where the tray space and connector system have already been adapted for a pack in this class. It is the kind of battery that makes most sense in specialized high-demand applications rather than in standard stock battery compartments.
That is why a battery like this should always be matched by voltage, connector, dimensions, and vehicle balance, not by voltage alone. A large-capacity 3S QS8 battery is a very specific solution, and it performs best when the full setup has been built with that in mind.
Size and Weight Overview
Best Use Case
This product is best for RC users who already know they want a large-format 3S battery and are building around that requirement intentionally. That usually means prioritizing maximum runtime, high current capability, and a power system that can fully make use of the QS8 connector.
If the goal is simply to find a normal 3S replacement battery for a standard tray, smaller and more conventional options will usually make more sense. But if the setup is intentionally moving toward the biggest practical 3S direction in this connector class, this battery fills that role very clearly.
FAQ
What kind of setup is this battery best for?
It is best for larger or custom-fit 3S surface RC setups where maximum runtime, strong discharge capability, and a high-current QS8 connector are part of the intended power system.
What is the main advantage of this battery?
The main advantages are very high capacity, strong current delivery, and a more serious connector format. It is designed for users who want one of the biggest and longest-running 3S solutions in this class.
How is it different from the 10500mAh 3S version?
This version offers even more capacity, but it is also longer, thicker, and heavier. It is the more extreme option for users who want maximum runtime from a large-format 3S QS8 battery.
What should I confirm before buying?
Check voltage, connector type, battery dimensions, and total weight first. With a battery in this size class, physical fitment and overall vehicle balance are just as important as electrical compatibility.
Package Includes
1 × CNHL Innovation RC Series 120C 11.1V 3S 12500mAh LiPo Battery with QS8 Plug
Notice
- Please confirm voltage, connector type, battery tray size, and acceptable weight range before purchase.
- Manual measurement may result in slight size differences.
- Please stop charging immediately if the battery behaves abnormally during charging.
- Check the battery surface, connector, and cell voltage before first use.
- If a new battery does not seem to deliver full performance initially, use a proper balance charger and complete several normal charge and discharge cycles.
- Always follow standard LiPo safety procedures during charging, storage, and transport.
המדינה או האזור שלך צריכים להתאים למחסן המשלוח
מחסן US
למחסן בארה"ב, הזמנות בדרך כלל נשלחות תוך 1 עד 2 ימי עבודה. הזמנות נשלחות רק לארצות הברית באמצעות שירות USPS (משלוח חינם בהזמנות מעל 79$), זמן המשלוח הוא 3-7 ימי עבודה.
מחסן EU
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מחסן UK
למחסן UK, הזמנות בדרך כלל נשלחות תוך 1 עד 2 ימי עבודה. הזמנות נשלחות רק להממלכה המאוחדת באמצעות שירות Yodel/Hermes/DPD (משלוח חינם בהזמנות מעל $69), זמן המשלוח הוא 3-7 ימי עבודה.
יתכנו חיובי משלוח נוספים לאזורים מסוימים, כולל ההיילנדס והאיים, איי התעלה, צפון אירלנד, אי מאן, ואי וייט.
מחסן AU
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מחסן CA
למחסן CA, הזמנות בדרך כלל נשלחות תוך 1 עד 2 ימי עבודה. הזמנות נשלחות רק לקנדה באמצעות שירות Amazon UPS/FedEx/CA Post (משלוח חינם בהזמנות מעל $99). זמן המשלוח הוא 3-7 ימי עבודה.
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