48V 10Ah Silverfish E-Bike Battery Li-ion with Key Lock and LED Indicator — Black Housing

Overview

The HNF Battery 48V 10Ah Silverfish is a rechargeable lithium-ion battery pack built for electric bicycle use across a wide range of Silverfish rail-mount compatible frame designs. Delivering 480Wh of usable energy at 48V nominal voltage, this pack provides sufficient capacity for 35 to 70 kilometers of assisted riding under typical urban commuting conditions, making it a practical choice for daily riders and light-duty e-bike platforms where a balance of capacity, weight, and cost is required.

The black housing combines a reinforced plastic outer shell with a secure rail-mount interface, key lock, and LED charge level indicator, providing riders with the essential features needed for secure daily operation without unnecessary complexity. The integrated BMS protects the cell assembly across all standard charge and discharge conditions, extending overall pack life and protecting connected motor controllers from voltage faults.

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Key Specifications

• Nominal Voltage: 48V (13S)
• Capacity: 10Ah
• Energy: 480Wh
• Cell Format: 18650 Li-ion
• Housing: Reinforced plastic, black
• Mount: Standard Silverfish rail mount
• Lock: Key lock with spare key
• Indicator: LED battery level display
• Charging Port: Separate DC barrel port
• BMS: Integrated multi-protection
• Certification: UN38.3, MSDS
• MOQ: 10 pcs
• OEM/ODM: Available

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Reliable 480Wh Capacity

The 48V 10Ah configuration is one of the most widely used specifications in the mid-range e-bike market, offering a practical balance between runtime and pack weight. At 480Wh total energy, this battery supports an estimated range of 35 to 70 kilometers per charge depending on rider weight, terrain, wind conditions, and the assist level selected. For urban commuters covering 20 to 30 kilometers per day, this pack delivers two or more days of riding between charges under moderate assist settings, reducing daily charging dependency and extending convenience for working riders.

The 48V nominal voltage is compatible with the majority of 48V mid-drive and hub-drive motor controllers used across the mainstream e-bike market, making this pack a direct fit for a broad range of both OEM-assembled and DIY e-bike builds.

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Intelligent BMS Protection

Each pack includes an integrated BMS providing overcharge protection at 4.2V per cell, over-discharge cutoff at 2.75V per cell, overcurrent and short-circuit protection, and passive cell balancing to maintain voltage consistency across all 13 series cell groups throughout the pack’s service life. The BMS ensures that the pack operates within safe electrochemical boundaries under all normal use conditions, protecting both the battery and the connected motor system from voltage-related faults.

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Secure Key Lock and LED Indicator

The key lock mechanism secures the battery to the frame rail, preventing unauthorized removal and accidental ejection during riding over rough terrain. Two keys are supplied as standard. The LED charge indicator on the top face of the housing allows riders to check remaining battery level at a glance without powering on the bike display, useful for quick pre-ride checks and mid-route range assessment.

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Silverfish Rail Mount Compatibility

The Silverfish form factor is one of the most widely adopted battery mounting standards in the global e-bike industry, used across hundreds of frame models from manufacturers in Europe, Asia, and North America. The HNF Battery 48V 10Ah Silverfish uses the standard rail profile and locking geometry, ensuring direct mechanical compatibility with frames designed for this mounting system. For OEM customers with proprietary frame designs, custom mounting bracket adaptations are available on request.

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OEM and Custom Options

HNF Battery supplies the 48V Silverfish range to e-bike brands, importers, and repair distributors on OEM terms. Available customization includes capacity options at 10Ah, 13Ah, and 15Ah, cell brand selection, custom label and logo printing on the housing, BMS protection threshold adjustments, cable length and connector type, and bulk packaging. Sample units are available for mechanical fitment and electrical compatibility testing prior to production orders.

Contact us at sales@hnfbattery.com or WhatsApp +86 134-8090-2696 for samples, pricing, or technical consultation.