EMP Battery Solutions | Custom, Rebuild, and OEM Packs

EMP Battery Solutions – Custom, Rebuild, and OEM Packs

At E-Bike Marketplace (EMP), we provide complete lithium-ion battery solutions for riders, fleets, and OEM partners. Whether you want to extend the life of an existing pack, build a high-performance custom solution, or purchase a factory-style battery case, our engineers can deliver exactly what you need.

1. E-Bike Battery Rebuilds

Currie I-Zip E-bike Battery Cell Replacement Service - EbikeMarketplace

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When your old e-bike battery no longer holds a charge, you don’t always need to replace it. EMP offers professional rebuild services that restore your original case and connectors while upgrading the internal components.

Our Rebuild Process:

Evaluation and Diagnostics – We open your battery, check the case, connectors, BMS (Battery Management System), and wiring.
New Cells Installed – We replace the worn cells with fresh, name-brand cells such as Samsung, LG, Panasonic, or Molicel. Customers can choose equal capacity or upgraded capacity for longer range.
New BMS (if required) – If your old BMS is damaged or outdated, we install a modern, properly rated BMS to ensure safety and performance.
Reassembly & Testing – The case is reassembled and the battery is fully tested under load to ensure reliability.

Advantages of a Rebuild:

Retain your original case and connections (fits perfectly in your bike)
Less expensive than purchasing a new battery
Option to upgrade for longer range or higher performance
More sustainable than discarding your old pack

2. Custom Naked Packs

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For customers who need a high-power, made-to-order pack, EMP builds custom shrink-wrapped “naked” batteries. These are ideal for e-bike conversions, scooters, motorcycles, and even solar storage systems.

Our Naked Pack Process:

Consultation & Design – You provide your voltage, capacity, discharge requirements, and available space.
Cell Selection – We use premium cells such as Samsung 50S, LG MJ1, or Molicel P42A/P50B depending on your performance needs.
Assembly – Our engineers configure the pack in series/parallel as required, install copper or nickel busbars, add a suitable BMS, and wrap the pack for durability.
Testing & Verification – Every pack undergoes quality testing and discharge checks before leaving our facility.

Advantages of Naked Packs:

Flexible fit for unique installations where OEM cases won’t work
High-discharge builds available for 100A–500A applications
Perfect for riders who need custom range or performance tuning
Lightweight compared to encased options

3. OEM White Label Battery Cases

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EMP also supplies batteries built into OEM-style enclosures, ideal for riders who want a polished, professional finish or businesses looking to sell white-label products. We offer a wide range of case styles including downtube, rear rack, and integrated designs.

Our OEM Case Process:

Case Selection – Choose from popular designs such as Hailong, Reention Polly, Dolphin, and other industry-standard enclosures.
Cell Configuration – We install new lithium-ion cells inside your chosen case, with capacity options to suit your range and power requirements.
BMS & Safety Integration – All packs include properly rated BMS units to protect against overcharge, over-discharge, and short circuits.
Maintenance & Service – EMP can also service and re-cell existing OEM batteries, giving customers an option to refresh instead of replace.

Advantages of OEM Cases:

Professional, factory-style appearance
Drop-in compatibility with most e-bike frames
Excellent choice for fleets and white-label resellers
Reliable performance with EMP’s premium cells

Why Choose EMP?

Over a decade of experience building and rebuilding lithium-ion batteries
Only high-quality, name-brand cells are used (Samsung, LG, Panasonic, Molicel)
Custom solutions for individual riders and large fleets
Ongoing service and support for every battery we build

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