YOSE POWER Review: E-Bike Batteries, Conversion Kits & Buying Guide

YOSE POWER specializes in electric bicycle batteries, replacement battery packs, DIY conversion kits, and e-bike accessories. Its products are designed for cyclists who want to replace an existing battery, upgrade their bike’s energy capacity, or convert a conventional bicycle into an electric-assisted bicycle.

The brand’s catalog covers several battery formats, front and rear hub motor kits, controllers, displays, pedal-assist sensors, and other components. This makes YOSE POWER particularly relevant to DIY e-bike builders and owners looking for replacement parts.

However, buying e-bike components requires careful compatibility checks. Battery voltage, connector type, mounting dimensions, controller specifications, wheel size, cassette or freewheel configuration, and brake compatibility can all affect whether a product will work with a particular bicycle.

This guide explores YOSE POWER’s product range and explains what buyers should consider before purchasing.

Editorial note: This article is based on publicly available product information and policies from YOSE POWER. CatchOffers has not independently tested the batteries or conversion kits.

What Is YOSE POWER?

YOSE POWER is an electric bicycle power equipment brand that says it began in 2011.

According to its official About page, the company initially focused on lithium battery and drive-system solutions before expanding into aftermarket conversion kits, replacement batteries, accessories, and complete electric bicycle products.

Its product range is designed for several types of customers:

• E-bike owners replacing an aging or incompatible battery.
• Cyclists upgrading battery capacity.
• DIY builders converting conventional bicycles into electric bikes.
• Owners looking for compatible displays, controllers, sensors, or other replacement components.
• Riders maintaining or repairing existing electric bicycle systems.

YOSE POWER also operates separate regional online stores. Its main yosepower.com website is identified as the European store, while separate websites serve customers in the United Kingdom, Netherlands, and United States.

This distinction matters because product availability, shipping, prices, and after-sales policies may differ between regional stores.

YOSE POWER Product Categories

The official website focuses primarily on three product groups: e-bike batteries, conversion kits, and accessories.

1. Electric Bike Replacement Batteries

Replacement batteries are one of YOSE POWER’s main product categories.

The catalog includes different battery shapes and mounting arrangements, including:

• Down-tube batteries.
• Hailong-style battery packs.
• Rear-rack batteries.
• Integrated replacement batteries.
• Model-specific battery packs for selected e-bike brands.
• Lithium-ion batteries with different capacities and discharge configurations.

Different bicycle manufacturers use different battery housings, mounts, connectors, and electronic communication systems. A replacement battery must match the requirements of the bicycle rather than simply having the same voltage.

Hailong Down-Tube Batteries

Hailong-style batteries are designed to mount along the bicycle’s down tube. Their bottle-style appearance can help integrate the battery into the bicycle frame.

One current YOSE POWER listing is a 36V Hailong1-2 battery available in 15.6Ah and 20Ah versions.

Its published specifications include:

The product listing specifies a 42V charging voltage and a 3A charging current. It also identifies a four-pin discharge port, which is different from other 36V Hailong battery configurations.

That connector detail is important. Two batteries can both be advertised as 36V Hailong models but still have different mounting rails, discharge connectors, and electrical characteristics.

Rear-Rack Batteries

Rear-rack batteries mount above or behind the rear wheel, usually using a compatible luggage rack or integrated battery holder.

These products may suit bicycles whose frames do not have enough space for a down-tube battery or whose original battery uses a rear-mounted design.

YOSE POWER lists replacement batteries for selected bicycle models and configurations, including products associated with brands such as Sparta, Batavus, Prophete, and other e-bike systems.

Compatibility must be checked against the exact model and battery reference number. A similar-looking battery is not necessarily an electrically compatible replacement.

Integrated and Brand-Compatible Replacement Batteries

Some modern electric bicycles use batteries integrated into the frame or designed around a specific electronic system.

YOSE POWER lists selected replacement products for named bicycle models and battery platforms, including some CAN-Bus configurations.

These products require additional care when choosing a replacement. The physical shape, electrical connector, battery management system, communication protocol, and mounting arrangement may all matter.

Do not assume that a battery can replace an original manufacturer’s pack merely because its voltage and advertised capacity appear similar.

2. DIY E-Bike Conversion Kits

YOSE POWER also offers conversion kits designed to turn a compatible conventional bicycle into an electric-assist bicycle.

A typical hub motor conversion kit may include:

• Front or rear hub motor wheel.
• Battery pack, depending on the package.
• Motor controller.
• LCD display.
• Pedal-assist sensor (PAS).
• Throttle, where included.
• Brake levers or brake sensors.
• Wiring harnesses.
• Installation accessories.

The website lists kits with and without batteries, giving buyers the flexibility to use a separately purchased compatible battery.

Front Hub Motor Kits

Front hub motors are installed in the front wheel.

They may appeal to DIY builders who want to retain the existing rear drivetrain and use a relatively straightforward wheel replacement.

Before purchasing, check the front fork’s dropout width, axle compatibility, wheel size, brake setup, and the fork manufacturer’s limitations.

Rear Hub Motor Kits

Rear hub motors replace the rear wheel and can be configured for different drivetrain arrangements.

YOSE POWER lists rear kits for several wheel sizes, including 26-inch, 27.5-inch, 28-inch, and 700C configurations.

Some kits are designed for cassette drivetrains, while others use freewheel configurations.

This distinction is critical. A cassette and a freewheel are different bicycle components, and a rear motor wheel designed for one system should not automatically be assumed compatible with the other.

Buyers should check the number of drivetrain speeds, cassette or freewheel type, axle dimensions, dropout spacing, and brake compatibility.

Example: 36V 350W Rear Cassette Conversion Kit

One specific product currently listed by YOSE POWER is a 36V 350W rear hub motor kit for a 26-inch bicycle.

Its advertised features include:

The package list includes the motor wheel, battery, charger, controller, LCD display, PAS sensor, thumb throttle, wiring, and mechanical brake levers.

These figures apply to this particular kit, not every YOSE POWER conversion product.

The advertised riding range is an estimate and depends on rider weight, terrain, assist level, tire pressure, wind, temperature, battery condition, and other riding conditions.

3. E-Bike Accessories and Replacement Components

YOSE POWER sells accessories intended to support maintenance, repairs, and upgrades.

Its catalog includes components such as:

• LCD displays.
• Motor controllers.
• Pedal-assist sensors.
• Brake sensors.
• Brake levers.
• Battery mounting brackets.
• Wiring harnesses and connectors.
• Replacement electronic components.

Examples include the Dashi C500 display, Lishui controllers, left-side pedal sensors, and sensors designed for Hollowtech II crank systems.

Some accessories are intended only for particular YOSE POWER kits or specific bicycle configurations.

For example, a standard pedal-assist sensor may not fit a Hollowtech II or Octalink bottom-bracket arrangement. A separate compatible sensor may be necessary.

Similarly, mechanical brake levers supplied with a conversion kit may not be suitable for bicycles using hydraulic brakes. Those setups may require compatible electronic brake sensors instead.

The safest approach is to identify the original component and its connector before ordering a replacement.

How to Choose the Right YOSE POWER Battery

Choosing an e-bike battery is not simply a matter of finding the largest capacity available.

Buyers should check several electrical and physical specifications.

Voltage

Battery voltage must match the requirements of the motor controller and bicycle electrical system.

A 36V battery should generally be used with a compatible 36V system. Installing a battery with a different nominal voltage can cause malfunction or damage when the system is not designed for it.

Capacity: Amp-Hours and Watt-Hours

Battery capacity is commonly displayed in amp-hours (Ah) and watt-hours (Wh).

Watt-hours provide a more useful way to compare the amount of stored energy:

Wh = Voltage (V) × Capacity (Ah)

For example:

• 36V × 13Ah = 468Wh.
• 36V × 15.6Ah = 561.6Wh in a simple nominal-voltage calculation.
• 36V × 20Ah = 720Wh in a simple nominal-voltage calculation.

Always use the manufacturer’s stated energy rating when available, because product listings may use specific nominal voltage and rated capacity conventions.

A larger Wh rating generally indicates more stored energy, but it does not guarantee a particular riding range.

Discharge Current

The battery’s discharge-current rating must be sufficient for the controller and motor’s electrical requirements.

A battery may have adequate capacity but still be unsuitable if its maximum current is below the controller’s demand.

Check the battery’s continuous discharge rating, maximum discharge rating, and the controller’s current requirements before purchasing.

Battery Mount and Dimensions

A replacement battery must physically fit the bicycle.

Compare:

• Overall length, width, and height.
• Mounting rail dimensions.
• Lock and key positions.
• Battery holder position.
• Available frame clearance.
• Connector location.

Do not rely on product photographs alone. Check the dimension drawings and mounting information.

Connector and Communication Compatibility

The discharge connector must match the bicycle’s wiring or be connected using an approved compatible adapter.

Also check whether the battery requires communication with the original controller or bicycle display.

Some systems use additional electronic protocols, so matching the voltage and connector alone may not be enough.

Charger Compatibility

A lithium-ion battery must be charged using the correct charger voltage and compatible charging connector.

For example, the YOSE POWER 36V Hailong battery listing specifies a 42V charging voltage.

Never select a charger based only on the battery’s nominal voltage or physical connector. Confirm the manufacturer’s required charging specifications.

How to Choose a YOSE POWER Conversion Kit

A conversion kit must fit both the bicycle frame and the existing drivetrain.

Before ordering, review the following points.

1. Wheel Size

Conversion kits are supplied for different wheel diameters.

Common listings include 20-inch, 24-inch, 26-inch, 27.5-inch, 28-inch, and 700C options.

A wheel that does not match the bicycle’s required size can affect tire clearance, bicycle geometry, and handling.

2. Front or Rear Motor

Choose the motor position based on the bicycle’s design and intended use.

Front and rear hub motors have different installation requirements and affect bicycle handling differently.

The correct choice depends on fork compatibility, frame dimensions, drivetrain layout, and brake configuration.

3. Cassette or Freewheel

For rear hub motors, verify whether the motor wheel supports a cassette or a threaded freewheel.

These are not interchangeable components.

Also check whether the kit supports the bicycle’s existing number of speeds.

4. Dropout Width and Axle Compatibility

The hub motor must fit the bicycle’s fork or rear dropout spacing.

A conversion kit may require a specific installation width. The 26-inch YOSE POWER example listed earlier specifies 138mm.

Measure the bicycle rather than assuming that a motor designed for a standard-looking wheel will fit.

5. Brake Type

Check whether the kit is designed for:

• V-brakes.
• Mechanical disc brakes.
• Hydraulic disc brakes.

Brake levers and electronic motor cut-off sensors may differ between these systems.

A kit designed for mechanical brake levers may require separate compatible sensors for hydraulic brakes.

6. Pedal-Assist Sensor Compatibility

The pedal-assist sensor must match the bicycle’s bottom-bracket and crank configuration.

YOSE POWER lists different PAS solutions for different arrangements, including sensors designed for Hollowtech II systems.

Check the available clearance and sensor installation instructions before ordering.

Important: Check Local E-Bike Regulations Before Installing a Conversion Kit

An electric bicycle conversion kit is not automatically road-legal simply because it can be installed on a conventional bicycle.

Rules differ between countries and may depend on motor power, assisted speed, throttle operation, and whether the system requires pedaling.

For example, Germany generally treats a pedelec as a bicycle when it meets specific conditions:

• Maximum continuous rated motor power of 250W.
• Assistance operates with pedal movement.
• Motor assistance is progressively reduced as speed increases.
• Motor assistance cuts off before the bicycle reaches 25km/h.

A walk or starting assistance function up to 6km/h is also permitted under the relevant conditions.

The YOSE POWER 36V 350W kit discussed earlier is listed with a maximum speed of 30–32km/h and includes a thumb throttle.

That configuration should not be assumed to qualify as an ordinary bicycle-class pedelec under German rules. A different vehicle classification, approval, insurance, or other requirements may apply depending on the actual configuration and jurisdiction.

Customers in Germany and other European countries should verify the relevant road-use requirements before purchasing and installing a kit.

Official references:

• German Federal Environment Agency – Pedelec and E-Bike Regulations
• EU Regulation 168/2013

Battery Safety and Maintenance

Lithium-ion batteries require careful handling and correct charging practices.

When using a YOSE POWER battery, customers should follow the instructions supplied with the exact product.

Important precautions include:

Use a compatible charger: Match the charger voltage, current, and connector to the battery specifications.

Avoid physical damage: Do not use a battery with a swollen enclosure, damaged wiring, damaged connector, or signs of water intrusion.

Do not modify battery electronics: Avoid opening the battery pack, changing the BMS, bypassing protection circuits, or performing unapproved wiring modifications.

Store carefully: Follow the manufacturer’s storage and temperature instructions, especially when the bicycle will not be used for extended periods.

Inspect before riding: Check battery mounting, electrical connections, cables, and locking mechanisms.

Recycle responsibly: Used lithium batteries should not be discarded with ordinary household waste. Use the appropriate local battery recycling service.

YOSE POWER’s warranty page also advises charging an unused battery at least once a month during extended periods without use. Follow the exact battery manual for the applicable storage and maintenance procedure.

YOSE POWER Shipping Policy

The website at YOSEPOWER.com currently defaults to Germany and displays prices in euros. Its published shipping policy focuses on European destinations.

The policy states:

• Free shipping is available across European regions.
• Battery and motor conversion kits are shipped from Germany.
• Orders are generally dispatched on the next day after payment, excluding weekends.
• Estimated delivery within Germany is 2–4 working days.
• Estimated delivery to other European countries is 4–8 working days.
• Remote areas may require additional time.

Complete e-bikes have additional destination restrictions: the policy states they can be shipped only to mainland Germany or France, excluding remote areas and islands.

These estimates are not a guarantee for every order. Buyers should verify the delivery destination and product availability at checkout.

YOSE POWER also lists separate websites for the United Kingdom, Netherlands, and United States. The European shipping terms should not automatically be applied to those stores.

Customers outside the listed European delivery area, including buyers in Vietnam, should contact YOSE POWER to confirm whether the exact product can be shipped to their address.

YOSE POWER Returns and Refunds

YOSE POWER publishes a 30-day return policy for eligible products.

Its refund policy states that a returned product generally must:

• Have been purchased within the previous 30 days.
• Be unused and undamaged.
• Remain in its original packaging.
• Include proof of purchase.
• Be accompanied by the required return authorization information.

The policy also states that sale items cannot be returned for a refund.

Return Shipping Costs

For returns caused by a change of mind, ordering the wrong product, or no longer needing the item, customers are generally responsible for return shipping costs.

The refund policy also states that customers bear the risk of loss or damage during return transportation.

For products received damaged, incorrect, or defective, customers should contact YOSE POWER immediately for instructions.

The FAQ mentions that a free return label may be provided according to the service policy, while the general refund policy places return shipping costs on customers in ordinary return cases.

Therefore, buyers should obtain written confirmation of the return procedure and shipping responsibility before sending an item back.

YOSE POWER Warranty

YOSE POWER’s general warranty page states that its e-bike batteries, conversion kits, and accessories receive a limited warranty of 12–18 months, depending on the product and purchase date.

Examples from individual product listings include:

The exact coverage should be verified on the product page and applicable warranty terms.

The warranty page also includes several important conditions:

• The warranty applies to the original purchaser.
• Purchases must be made through official YOSE POWER channels.
• The customer should inspect the product immediately after delivery.
• Defects or delivery issues should be reported promptly, with photos or videos where requested.
• The customer is responsible for shipping costs under the stated warranty procedure.
• Damage caused by unauthorized modifications, improper use, crashes, external factors, or non-original accessories may be excluded.

One clarification is particularly important: the homepage advertises 10-year after-sales parts support, but this should not be interpreted as a 10-year product warranty. The published warranty policy states a general limited coverage period of 12–18 months.

Customers should retain invoices, purchase records, and product documentation in case they need after-sales support.

What Do Customers Say About YOSE POWER?

Public customer feedback provides additional context about the shopping and product experience.

Recent Trustpilot review summaries frequently mention:

Positive experiences

• Fast delivery.
• Conversion kits that customers find straightforward to install.
• Useful installation instructions and included tools.
• Good value for selected battery and motor kit purchases.
• Satisfactory performance in individual cycling applications.

Reported concerns

• Some customers describe slow or unhelpful email support.
• Some report faulty components or issues with replacement parts.
• A few reviewers mention battery performance concerns.
• Packaging damage or delivery-related issues appear in some individual experiences.

These reviews describe individual customer experiences and should not be treated as a guarantee of product performance.

For buyers planning a conversion, the quality of after-sales technical support can be particularly important because compatibility and installation questions may arise after delivery.

You can review current feedback on Trustpilot’s YOSE POWER page.

Advantages and Limitations of YOSE POWER

Potential Advantages

A focused e-bike component catalog: YOSE POWER specializes in batteries, conversion kits, and related accessories rather than offering a broad range of unrelated consumer products.

Multiple battery formats: The catalog includes down-tube, rear-rack, and selected replacement batteries for specific e-bike models.

DIY conversion options: Front and rear hub motor kits provide opportunities to convert compatible conventional bicycles.

Battery and kit choices: Some conversion kits are sold with batteries, while others allow buyers to source compatible batteries separately.

Technical product information: Individual product pages provide details such as voltage, capacity, wheel size, dropout width, connector type, and included components.

Installation resources: The company provides installation videos and technical guides for many products.

Points to Consider

Compatibility is model-specific: Similar voltage or appearance does not guarantee that a battery, connector, or motor kit will fit.

Installation requires technical knowledge: Hub motor conversion involves bicycle mechanics and electrical installation.

Legal road-use requirements vary: Higher-powered kits or throttle-equipped systems may not qualify as ordinary pedelecs in some countries.

Warranty periods are limited: General coverage is 12–18 months, not 10 years.

Return costs require attention: Customers may have to pay shipping for non-quality returns, and sale items are excluded under the published refund policy.

Regional shipping differs: The main website focuses on Europe, with separate regional storefronts for other markets.

Is YOSE POWER Worth Considering?

YOSE POWER is worth considering for cyclists who want replacement e-bike batteries, DIY conversion kits, or compatible accessories.

Its product range is particularly relevant to technically confident buyers who want to maintain an existing electric bicycle or convert a suitable conventional bicycle.

The most important advantage is the range of battery formats and conversion components available. Buyers can compare different battery capacities, mounting styles, hub motor configurations, and accessory options.

However, this is not a product category where choosing the cheapest or highest-capacity option should be the primary consideration.

Check the electrical specifications, physical dimensions, connector type, motor compatibility, bicycle frame measurements, brake system, and local road regulations before purchasing.

For customers who need technical assistance, confirm the relevant regional support and warranty terms before placing an order.

Official Website: https://yosepower.com/

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