HARD-NV-8400MAH-140C-OVERSEA
2 products

Welcome to the DXF Gold Series 4S 14.8V 8400mAh 140C Graphene Hardcase LiPo Battery Series. Engineered for hardcore RC racers, extreme bashers, and large-scale model drivers demanding massive runtime endurance, blistering acceleration, and rugged crash resistance, this collection delivers flagship 4S standard voltage power designed for high-power 1/8 and 1/10 scale monster trucks, buggies, truggies, short course trucks, stadium trucks, rock bouncers, and speed run machines.
All battery packs in this collection are pre-stocked in our local overseas fulfillment centers across the United States, United Kingdom, Canada, Japan, and the European Union, providing direct domestic dispatch with full tracking and rapid delivery in 3–7 business days.
⚡ Key Performance Features
- Colossal 8400mAh High Capacity: Delivers extreme driving runtime and marathon session endurance without frequent battery swaps or premature voltage drop.
- Blistering 140C Ultra-High Discharge: Provides instant linear throttle punch, explosive acceleration down long straights, and minimal voltage sag under heavy brushless motor amp draws.
- Gold Series Graphene Architecture: Premium nano-graphene composite cell matrix dramatically minimizes internal resistance (IR), optimizes heat dissipation, and prolongs cycle lifespan.
- Heavy-Duty 10AWG Silicone Wire: Premium ultra-soft 10AWG high-flex silicone leads maximize high-amperage current transfer while reducing resistance and thermal buildup.
- High-Current Connector Options: Factory fitted with genuine gold-plated XT90 or EC5 power connectors alongside standardized JST-XH balance leads.
- Rugged Protective Hardcase: Heavy-duty composite shell shields internal cells against severe chassis impacts, loose gravel, rollovers, and hard landings.
- Premium Grade-A Matched Cells: Strict cell sorting guarantees consistent internal resistance, uniform per-cell voltage, and dependable cycle longevity.
📊 Series Specifications
- Brand & Series: DXF POWER Gold Series
- Chemistry: Lithium Polymer (Standard Voltage 3.7V Nominal / 4.20V Max per Cell)
- Configuration: 4S1P (14.8V Nominal / 124.32Wh)
- Nominal Capacity: 8400mAh
- Discharge Rating: 140C continuous (280C burst)
- Form Factor: Impact-Resistant Protective Hardcase
- Dimensions: Approx. 138 × 46 × 50mm (5.43 × 1.81 × 1.97 in)
- Weight: Approx. 632g per pack
- Main Connectors: Genuine Gold-Plated XT90 / EC5
- Wire Gauge: Heavy-Duty 10AWG Ultra-Soft Silicone Wire
- Balance Connector: JST-XH standard balance port
- Multi-Pack Bundles: Available in 1-Pack, 2-Pack, up to 6-Pack options
🚚 Overseas Warehouse Fast Shipping
Orders are dispatched directly from our regional fulfillment centers closest to your shipping address:
- USA Warehouse: 3–5 Business Days via USPS / FedEx / UPS Ground
- UK Warehouse: 3–5 Business Days via Royal Mail Tracked / DPD
- EU Central Warehouse: 3–7 Business Days via DHL / DPD across 26 EU member states
- Canada & Japan Warehouses: 3–7 Business Days tracked domestic parcel service
🛡️ Warranty & Professional Support
- 180-Day Manufacturer Warranty: Every DXF battery pack is backed by our dedicated 180-day customer warranty and friendly technical support.
- Precision Cell Sorting: Strict cell matching ensures uniform voltage, capacity, and internal resistance across every pack for enhanced longevity and reliable cycle life.
⚠️ LiPo Care & Safety Guidelines
- Always use a certified LiPo balance charger set to 4S LiPo balance mode (4.20V/cell cutoff).
- Never leave charging batteries unattended, and always charge inside a fireproof LiPo safety bag.
- Do not discharge below 3.2V per cell under load to prevent permanent cell damage.
- Store batteries at 3.80V–3.85V per cell in a cool, dry place when not in use for more than 48 hours.
Explore official DXF battery race testing and technical guides on our YouTube Channel:
Visit DXF POWER Official YouTube Channel


