Quick Fit Check
The CNHL Ultra-Thin Racing Series LiHV 4000mAh 7.6V 2S 120C Shorty Hard Case LiPo Battery with EC3 Plug is a high-performance 2S shorty hardcase battery designed for drivers who want strong output, LiHV voltage, and a very low battery profile for chassis that are sensitive to pack height. Its biggest advantage is simple: at just 18.5mm tall, this is an unusually thin shorty hardcase pack.
Before ordering, check four things first: your vehicle should support 2S LiHV voltage, the battery tray should fit this pack’s dimensions, the setup should match an EC3 connector, and the chassis should suit a battery weighing about 171g. If those points line up, this battery is a very strong option for low-CG builds, stadium trucks, drift cars, and other 1/10 platforms that benefit from a slimmer shorty pack.
| Power System |
2S LiHV / 7.6V setup |
| Connector Match |
EC3 plug, often searched alongside IC3 setups |
| Battery Space |
Tray should support 96 × 47 × 18.5 mm |
| Height Advantage |
Ultra-thin 18.5mm shorty hardcase profile |
| Weight Range |
Chassis should handle approx. 171g battery weight |
Product Specifications
| Capacity |
4000mAh |
| Voltage (S/cell) |
7.6V / 2S LiHV |
| Discharge Rate (Continuous/Burst) |
120C / 240C |
| Output Connector |
EC3 Plug |
| Dimensions (L × W × H) |
96 × 47 × 18.5 mm |
| Weight |
Approx. 171g |
| Charge Rate |
5C Max |
| Balance Connector |
JST-XH |
| Wire Gauge |
12 AWG |
| Stock Number |
HC4001202HV |
What Makes This Shorty Pack Different
A 4000mAh 2S LiHV shorty hardcase is already a serious performance battery, but this one stands out for a more specific reason: it delivers that output in an unusually slim package. At only 18.5mm tall, it sits lower than many standard shorty packs and creates a clear advantage for chassis where battery height affects clearance, CG, or body fitment.
That matters because battery height often influences how a car feels on track. A lower pack can help a chassis feel flatter, more stable, and easier to place consistently through corners. On some builds, that is more meaningful than simply adding more capacity or a higher C number without considering pack shape.
The LiHV chemistry adds another advantage. Compared with a standard 7.4V pack, this battery charges to a higher voltage, which often gives a stronger early-run feel and more immediate throttle response. Combined with the 120C discharge rate, this makes it a serious performance pack for users who want a low-profile shorty that still feels strong under load.
Applications
This battery is best suited to 1/10 scale RC vehicles that use a 2S shorty hardcase layout and benefit from a lower battery profile. It makes the most sense in stadium trucks, drift cars, touring cars, and other low-CG builds where battery height and overall chassis balance play a big role in how the car drives.
Because it uses an EC3 plug, it is also relevant to users searching around EC3 battery and IC3 battery fitment on smaller surface RC platforms. As always, exact connector and tray fit should still be confirmed before purchase.
Why the Ultra-Thin 18.5mm Height Matters
The biggest difference with this pack is not just that it is shorty, LiHV, or 120C. It is that it keeps those specs in an unusually low-profile case. A battery at 18.5mm tall gives more flexibility on height-sensitive builds and can be especially attractive on platforms where even a few millimeters of extra battery thickness can change the setup.
That is why this battery can reasonably be understood as an ultra-thin shorty hardcase. It is built for users who care not just about electrical spec, but also about the physical shape of the battery and what that shape does to chassis behavior.
Compatible Platform References
This battery is especially relevant to 1/10 RC cars, stadium trucks, touring builds, drift cars, and custom low-CG projects that use a shorty hardcase layout. It is commonly considered for platforms from ARRMA, Losi, Team Associated, Axial, Tamiya, and HPI, provided the tray, voltage, and connector all match correctly.
It is also a strong match for scale lowriders such as the
Redcat Caprice Classic RC Lowrider,
where a compact shorty pack can provide dependable runtime while keeping the build practical and tidy.
An Upgrade Option for Tamiya Wild Willy 2 (WR-02)
For drivers who want longer runtime and a stronger punch from their Tamiya Wild Willy 2 (WR-02 chassis), this CNHL Racing Series LiHV 4000mAh 7.6V 2S 120C shorty pack can be a very interesting upgrade. The compact shorty case helps with fitment in tighter battery compartments compared with full-length hardcase packs, and the LiHV chemistry keeps the voltage more stable under load.
Because the original Wild Willy wiring uses a classic Tamiya-style connector, users may need an adapter or a connector upgrade to work with the EC3 plug on this pack. Many WR-02 owners choose to upgrade connectors at the same time for lower resistance and a cleaner high-performance setup.
See more WR-02-compatible options here:
Tamiya Wild Willy 2 / WR-02 Battery Collection.
Explore More Racing Hardcase Options
If you are comparing battery directions and looking for stronger discharge performance or other hardcase LiHV choices, you may also want to browse:
Product Photo
FAQ
What makes this battery different from a normal shorty pack?
Its biggest difference is the low-profile hardcase. At only 18.5mm tall, it is slimmer than many standard shorty packs, which makes it especially useful on low-CG and height-sensitive chassis.
What is the benefit of LiHV batteries?
LiHV batteries charge to a slightly higher voltage than standard LiPo batteries, which often improves early-run throttle response and overall punch.
Why does the 18.5mm height matter?
Because battery height can directly affect tray fitment, body clearance, and vehicle balance. A thinner shorty pack can make a real difference on platforms designed around low battery placement.
Is EC3 relevant for IC3 users?
Many buyers search EC3 and IC3 battery setups together because they are often associated with the same class of smaller high-performance RC power systems. Users should still confirm their exact connector setup before purchase.
Package Includes
1 × CNHL Racing Series LiHV 4000mAh 7.6V 2S 120C HV Shorty Hard Case LiPo Battery with EC3 Plug
Notice
- For RC batteries, correct fit depends on voltage, connector type, and physical battery dimensions.
- This is a LiHV battery. Stop charging when cell voltage reaches 4.35V per cell.
- Battery size may vary slightly due to manual measurement.
- Please check battery condition and voltage before first use.
- If the battery does not hold a full charge initially, cycle it several times using a balance charger.
- Always use a LiHV-capable balance charger and follow normal LiPo safety procedures during charging, storage, and transport.
Your country or region must match the correct shipping warehouse. Details below:
US Warehouse
Ships in 1–2 working days via USPS. Free shipping over $69; standard fees apply otherwise. Delivery: 3–7 working days.
US (LA) Warehouse
Ships in 2–3 working days. Standard domestic shipping fees apply.
EU Warehouse
Ships in 1–2 working days. Standard EU shipping fees. Delivery: 5–10 working days.
Global Warehouse
(Global & Global-CN2) Ships in 4–5 working days.
Delivery: 20–25 days, or 10–15 days from Global-CN2. Standard international shipping fees apply.
UK Warehouse
Ships in 1–2 working days via Yodel/Hermes/DPD.
Free shipping over $69; standard fees apply. Delivery: 3–7 working days.
AU Warehouse
Ships in 1–2 working days via AU Post.
Free shipping over $79; standard fees apply. Delivery: 3–7 working days.
CA Warehouse
Ships in 1–2 working days via Amazon UPS/FedEx/Canada Post.
Free shipping over $99; standard fees apply. Delivery: 3–7 working days.
