By kazimladimeji 
🔋 Electric Bike Conversion Kit with Battery – Which Should I Choose?
Upgrading your bike into an electric one is easier and more affordable than ever — but with so many electric bike conversion kits with battery options on Amazon, which one is right for you?
This guide compares five popular kits and battery setups from Voilamart, Bafang, Tongsheng, Hailong, and Yose Power, helping DIY-savvy cyclists find the best performance, value, and compatibility.
⚡️ Top Picks at a Glance
| Product | Type | Motor Power | Installation Difficulty | Best For | Buy Now |
|---|---|---|---|---|---|
| Voilamart Kit | Rear Hub | ~1000W | Moderate | Budget builds, commuters | 🔘 Buy on Amazon » |
| Bafang BBS02 | Mid-Drive | 750W | Moderate–Complex | Hills, speed, torque lovers | 🔘 Buy on Amazon » |
| Tongsheng TSDZ2B | Mid-Drive (Torque Sensor) | 250–500W | Complex | Natural feel, tech-savvy riders | 🔘 Buy on Amazon » |
| Hailong Battery (48V) | Downtube Battery | N/A | – | Most mid-drive kits | 🔋 Buy Battery on Amazon » |
| Yose Power Battery | Rear Rack Battery | N/A | – | Hub or mid-drive, flexible fit | 🔋 Buy Battery on Amazon » |
🔧 Installation & Compatibility
✅ Voilamart Rear Hub Motor Kit
🔌 Plug-and-Play Simplicity for DIY Users
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Installs by swapping out the rear wheel
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Basic crank sensor fits most bikes (can be fiddly on some)
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Great for flat terrain, daily commutes
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Lacks torque-sensing finesse but delivers raw power
👉 🔘 Buy the Voilamart Kit on Amazon »
💪 Bafang BBS02 Mid-Drive Kit (750W)
⚙️ Legendary Power + Gearbox Integration
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Replaces bottom bracket and crank
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Offers up to 160Nm torque — ideal for hills
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Works best with Hailong battery
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Long-lasting, weather-resistant, app configurable
👉 🔘 Buy the Bafang BBS02 Kit on Amazon »
👉 🔋 Get the Hailong Battery »
🧠 Tongsheng TSDZ2B Mid-Drive Kit
⚡ Smooth, Torque-Sensitive Ride
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Advanced torque sensor for more natural pedal assist
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Feels like riding a high-end e-bike
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Same install process as Bafang but with more finesse
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Good range and custom firmware options
👉 🔘 Buy the Tongsheng Kit on Amazon »
👉 🔋 Compatible Battery: Yose Power »
🔋 Battery Comparison
🔋 Hailong 48V Lithium Battery
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Popular downtube-mount battery
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High-capacity (10–20Ah options)
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Works perfectly with Bafang or Tongsheng kits
👉 🔋 Buy Hailong Battery on Amazon »
🔋 Yose Power Rear Rack Battery
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Rear rack-mounted for easier fit on step-through bikes
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Removable design for convenient charging
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A great match for hub motors or less technical builds
👉 🔋 Buy Yose Power Battery on Amazon »
🏁 Who Should Choose What?
| Rider Type | Best Kit Combo | Why |
|---|---|---|
| Beginner DIYer | Voilamart + Yose Power | Straightforward install, great price |
| Hill Climber / Tourer | Bafang BBS02 + Hailong | Mid-drive power, torque, durability |
| Tech-Savvy Cyclist | Tongsheng + Hailong/Yose | Natural ride feel, torque sensor |
| Budget Focused | Voilamart + Yose Power | Maximum value, minimal hassle |
✅ Final Thoughts
If you’re comfortable with tools and know your way around a bike, any of these kits can turn your ride into a powerful, pedal-assisted machine. Here’s the quick breakdown:
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Best all-rounder: Bafang BBS02 + Hailong
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Best budget build: Voilamart + Yose Power
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Best for ride feel: Tongsheng + Hailong
🛒 Ready to electrify your bike?
Click below to get your kit:
🔧 Beginner’s Wiring Diagram for Electric Bike Conversion Kits
To support readers who are confident with tools but new to e-bike conversions, we’ve included this Beginner’s Wiring Diagram below. It offers a visual guide to help you understand how the main components of a typical mid-drive or rear hub electric bike conversion kit connect together:
🧩 Key Elements Typically Found in a Conversion Kit:
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Battery: Often mounted to the downtube or rear rack. Connects to the controller and powers the motor.
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Controller: The central hub that regulates the power between the battery, motor, display, and throttle.
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Motor (Hub or Mid-Drive): Converts electric power into forward motion. Mid-drive units like the Bafang BBS02 or Tongsheng link through the drivetrain, while hub motors like Voilamart and Yose Power sit in the wheel.
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Throttle & Pedal Assist Sensor (PAS): These give you manual or automatic power boost while riding.
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Display (LCD/LED): Shows speed, assist level, battery level and other useful data.
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Brake Cut-off Sensors: Safety feature that cuts motor power when braking.
⚙️ Why This Diagram Helps:
Many Amazon conversion kits come with minimal documentation. This diagram gives you a simplified overview of how everything ties together so you’re not left guessing which wire goes where. Whether you’re installing a Voilamart rear hub kit or a Bafang mid-drive, this diagram can help you double-check your connections and plan your install layout.
Use this diagram as a quick-reference visual aid while installing your conversion kit. It’s ideal for DIYers who are comfortable around bikes and electrics but appreciate a little visual reassurance.