AMPX 48V 20Ah Triangle E-Bike Lithium Battery Pack (40A BMS / High-Current)
$296.40 Original price was: $296.40.$239.87Current price is: $239.87.
Unlock maximum range and aggressive current stability. The AMPX 48V 20Ah Triangle Battery Pack is a high-density power core custom-engineered to mount directly within your bike’s center frame triangle. Housing premium Panasonic 21700 Class A cells and governed by a heavy-duty 40A continuous smart BMS protective plate, this 960Wh powerhouse effortlessly juices high-demand mid-drive and direct-drive rear hub motor setups from 100W up to 1600W without cutting out under load.
Maximum Energy Density for Central Frame Geometry
Standard downtube case batteries often fall short on total capacity or structural balance. The AMPX 48V 20Ah Triangle E-Bike Battery solves both issues by shifting the system’s weight directly to your bike’s center of gravity. Utilizing an optimal 13S4P block configuration packed with premium high-capacity 21700 cells, this triangle block offers double the energy capacity of conventional entry-level commuter packs, effectively eliminating range anxiety on long single-track trail runs or fast daily road commutes.
⚡ Technical Energy & Safety Metrics
| System Attribute | Factory Specification & Parameter Data |
| Nominal System Voltage | 48V (Fully charged peak output at 54.6V) |
| Rated Pack Capacity | 20Ah (20,000mAh) / Total Energy Profile: 960Wh |
| Internal Cell Sourcing | Premium Panasonic 21700 Class A High-Capacity Cells |
| Battery Layout Architecture | 13S4P Structural Configuration Array |
| Smart BMS Protection | 40A Continuous / 80A Peak Safety Managed Plate |
| Motor Drive Support | Optimized for 48V Motors ranging from 100W to 1600W |
| Structural Shielding | Impact-Resistant Casing + Tailored Weatherproof Triangle Bag |
| Operational Lifespan | 1,500+ Full Charging Cycles before initial degradation |
| Net Hardware Weight | Approx. 5.45 kg (12 lbs) |
Why the AMPX Triangle Battery Platform Redefines DIY Power
🚀 Heavy-Duty 40A Continuous Smart BMS
Don’t let your battery choke your high-torque controller. While generic commuter packs use weak 15A or 20A Battery Management Systems that shut down on steep inclines, this unit features a robust 40A continuous smart BMS. It effortlessly satisfies the current demands of heavy 750W, 1000W, and 1500W setups, while actively preventing over-charging, over-discharging, and short circuits.
⚖️ Perfect Frame Weight Balancing
Centralizing your e-bike’s hardware improves handling. By securing this dense lithium core within your frame’s main triangle using the included heavy-duty strapped mounting bag, you keep the front fork and rear dropouts free from clumsy weight bias. This results in crisper cornering, superior stability at high speeds, and zero awkward tail-whip lag on technical trails.
🔋 True Automotive-Grade Panasonic Core
Not all lithium cells are created equal. This pack is built using genuine Panasonic 21700 cells, ensuring uniform internal resistance and predictable discharge rates. This prevents premature voltage sag, giving you snappy throttle response even when your battery level drops below the 20% mark.
📦 Comprehensive Packing Checklist
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1x AMPX 48V 20Ah Triangle Lithium Battery Pack
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1x Custom-Fit Heavy-Duty Weatherproof Canvas Triangle Frame Bag
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1x Premium 54.6V 2A Smart Battery Charger (Auto Cut-Off Feature)
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1x Set of Pre-Wired High-Current Power Plugs (XT60/Anderson Adaptable)
🚫 Essential Installation & Usage Reminders
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📏 Chassis Clearance Verification: Due to its high-density form factor, please measure your internal frame spacing (12″ x 7.5″ x 11″) before ordering to ensure it fits comfortably within your bike’s main triangle without blocking rear suspension travel.
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🔌 First-Time Activation Protocol: Charge your new pack to a full 100% for at least 6–8 hours prior to your first ride. This allows the internal cells to balance perfectly across the BMS rail before your initial high-amperage throttle pull.
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