Custom Hailong Battery Cases & Epoxy Boards for Complete Battery Solutions

Packaging & Baseboard Design for E-Bike Hailong Battery Packs

E-bike frame-style Hailong batteries are one of the most popular standard formats for aftermarket electric bicycle upgrades. While many builders focus only on internal cell selection, the enclosure structure and internal baseboard layout directly impact battery durability, heat management and assembly consistency. The Hailong battery case series, epoxy boards and battery monitor modules create a standardized full-pack solution for mass production and custom e-bike battery builds, simplifying integration while improving protection and structural integrity.

Generic plastic battery cases often suffer from thin walls, poor weather resistance and inconsistent internal dimensions, causing EVA foam padding to shift, wiring to chafe, and batteries to fail prematurely. Purpose-built Hailong battery case series are precision molded to match standard frame mounting geometry, while providing improved impact resistance, dust protection and weather sealing for daily urban and commuter cycling use.

Hailong Battery Case Series: Standard Form Factor & Internal Layout

Hailong battery case series are designed as the classic downtube e-bike battery housing, available in common cell configurations (13S, 14S, etc.) to fit mainstream frame models. The rigid outer shell protects internal cells, EVA foam cushioning, Mylar insulation, nickel busbars and wiring from physical impact, road debris and rain penetration. Internal rib structures help fix epoxy baseboards and BMS boards, preventing internal component movement during rough rides and vibration.

These cases support easy opening for maintenance and cell replacement, while including built-in cable routing channels to reduce wire pinching risks. The form factor allows direct plug-and-play replacement for original factory Hailong batteries, greatly simplifying e-bike repair and upgrade workflows. Custom color options and locking structures are also available for brand differentiation and anti-theft requirements for shared e-bike fleets.

Epoxy Boards: Rigid Insulation Baseboards for BMS & Cell Layout

Epoxy boards act as rigid electrical insulation substrates and mounting platforms for BMS circuit boards, balance wiring, terminal posts and cell arrays inside battery packs. Unlike simple plastic sheets, epoxy boards have excellent thermal resistance, dielectric insulation strength and structural rigidity, resisting bending, heat degradation and moisture absorption inside sealed battery cases.

Precision pre-drilled epoxy boards standardize BMS placement and wiring paths, speeding up assembly and eliminating messy hand-wiring layouts. They prevent unintended conductive contact between BMS traces, nickel busbars and the main battery casing, adding an extra layer of safety insulation. The stable base structure reduces mechanical stress on BMS solder joints and spot-welded nickel connections, lowering hidden failure rates during long-term vibration cycling.

Battery Monitor & Full System Integration

Integrated battery monitor modules attach directly to the battery pack, providing real-time voltage, temperature, SOC (state of charge) data, and over-limit alerts. The monitor works alongside the BMS to enable accurate cell balancing, extend overall battery life, and warn users of abnormal temperature or voltage drift before permanent damage occurs. Paired with Hailong cases, epoxy baseboards, and our full range of insulation paper, Mylar film, EVA foam, tapes and nickel accessories, a complete turnkey Hailong battery build becomes repeatable and scalable for OEM orders.

From raw battery auxiliary materials to finished enclosed battery assemblies, a holistic battery design approach ensures consistent quality, safety and performance. The Hailong battery ecosystem enables reliable e-bike power systems for daily commuting, long-distance cycling, and shared mobility applications worldwide.