4400mAh-NV-BULLET
2 products
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Choose your pack quantity (1–2 packs) and connector type — no adapters needed, just plug in and race.

The DXF 2S 7.4V 4400mAh 140C Hardcase LiPo Battery with 5mm Bullet Ports is purpose-built for competition on-road RC touring cars and lightweight racing chassis. Engineered with high-drain graphene cell technology and an ultra-low profile NGP Shorty form factor (only 18.5mm thin), this race-proven battery delivers a blisteringly high 140C discharge punch, exceptionally low internal resistance, and rock-solid voltage sustain through high-speed corners and full-throttle straights.
Watch DXF Batteries in Action
Key Features
- 140C extreme discharge rate: Blistering acceleration, lightning-fast throttle response, and robust current delivery for competitive heats
- Ultra-low profile NGP Shorty design: 18.5mm thin hardcase lowers the vehicle center of gravity (CG) for superior cornering and chassis balance
- Gold-plated 5mm bullet ports: Direct-plug female bullet sockets ensure minimal resistance and maximum electrical conductivity
- Graphene cell technology: Enhanced thermal dissipation, ultra-low internal resistance, and durable cycle longevity under demanding race schedules
- Included 5mm bullet charging harness: Complete with flexible silicone power leads and selected connector (XT60, EC5, TRX, Deans/T-Plug, XT90, XT150, or Q8S) plus JST-XH balance lead
- Grade-A matched cells: Rigorously factory matched for cell voltage balance, low IR, and consistent lap-after-lap power
Specifications, Per Battery
- Brand: DXF POWER
- Series: DXF Graphene Competition Series
- Capacity: 4400mAh
- Voltage: 7.4V nominal (2S, 3.70V/cell nominal, 4.20V max charge per cell)
- Configuration: 2S1P
- Discharge Rate: 140C
- Form Factor: Impact-resistant hardcase with 5mm bullet terminals
- Dimensions: Approximately 93 × 48 × 18.5 mm
- Weight: Approximately 159g
- Terminal Ports: Dual 5mm gold bullet sockets + 2mm center balance socket
- Included Cable Harness: 5mm bullet connectors to chosen main plug (XT60, EC5, TRX, Deans/T-Plug, XT90, XT150, or Q8S) with JST-XH balance plug
- Applications: Spec-fit for 1/10 scale on-road RC touring cars, pan cars, drift cars, formula chassis, buggies, and lightweight racing builds
Package Includes
- DXF 2S 7.4V 4400mAh 140C hardcase LiPo battery, quantity chosen from 1–2 packs
- 5mm gold bullet to selected main connector charge/discharge wiring harness with balance lead
- User manual and safety guide
Choose Your Ideal Power Bundle
- 1 Pack – Start Strong: Single competition battery for race qualifiers, shakedown testing, or dedicated single-car setups
- 2 Pack – Double Your Runtime: Swap fresh packs instantly between qualifying heats and main events without track downtime
More packs mean longer operating sessions, fewer downtime interruptions, and dependable backup capacity.
180-Day Warranty & Customer Support
Every DXF battery is backed by a 180-day manufacturer warranty against defects in materials and workmanship. DXF customer support is readily available for guidance on connector compatibility, charging parameters, and battery maintenance.
Usage & Safety Guidelines
- Use a dedicated balance charger supporting standard 2S LiPo (4.20V/cell) balance charging.
- Always balance charge inside a fire-resistant LiPo safety bag and never leave charging batteries unattended.
- Do not overcharge past 4.20V per cell or discharge below 3.2V per cell.
- Store batteries at 3.80V–3.85V per cell in a cool, dry, ventilated location away from direct sunlight.
- Inspect the hardcase, 5mm bullet harness, and terminals before every race session.
- Never puncture, drop, crush, short-circuit, or expose the pack to extreme temperatures or water.
- Verify vehicle battery tray dimensions, polarity markings, and ESC voltage compatibility before operation.
Why Choose DXF?
- Advanced graphene chemistry delivering exceptional current density and flat discharge curves
- Massive 140C discharge capability engineered for track dominance
- Ultra-compact NGP profile providing optimal weight distribution and low CG
- Gold-plated bullet ports offering flexible, zero-adapter wiring to your electronics
- Strict quality inspection and rigorous factory testing
- Professional customer service and global warehouse logistics
Perfect For
Engineered for competitive 1/10 on-road RC touring car racers, club competitions, indoor carpet tracks, asphalt circuits, and custom RC builds requiring a high-discharge 2S 7.4V 140C hardcase shorty pack.
Dominate the track with DXF high-discharge power. Watch setups and performance tests on the DXF YouTube channel.


