OHRIJA 54.6V Smart eBike Battery Charger – 2A, 3A, 4A & 5A

Fast, Smart Charging for 48V Lithium-Ion Batteries

Keep your 48V eBike, electric scooter, or compatible lithium-ion battery system ready to ride with the OHRIJA HRH300 54.6V Smart Fast Charger.

Designed specifically for standard 13S 48V lithium-ion battery packs, this charger delivers a regulated 54.6V DC output and is available in 2A, 3A, 4A, and 5A configurations.

The compact HRH300 combines CC/CV charging technology, multiple protection systems, and a rugged aluminum-style housing in a lightweight package measuring approximately 135 × 90 × 50 mm.

🔋 Why 54.6V for a 48V Battery?

A standard 48V lithium-ion eBike battery is typically a 13S battery pack.

Its voltage is approximately:

48V nominal → 54.6V fully charged

That's why a standard 48V lithium-ion battery normally requires a 54.6V charger.

Important: Always verify the required charging voltage printed on your battery or original charger before ordering.

🚀 Key Features

• 54.6V DC regulated output

• Designed for compatible 48V / 13S lithium-ion batteries

• Available in 2A, 3A, 4A and 5A

• CC/CV charging technology

• Built-in short-circuit protection

• Over-voltage protection

• Over-current protection

• Over-temperature protection

• Compact 135 × 90 × 50 mm design

• Approximately 0.7 kg / 1.54 lb

• CE, FCC and RoHS certifications listed by the supplier

• Suitable for compatible eBikes, scooters and lithium battery systems

⚡ Choose Your Charging Current

The HRH300 is available with several output-current options.

*Calculated as output voltage × output current. Actual power may vary with operating conditions.

Note: The supplied listing describes the 5A version as “500W,” but 54.6V × 5A equals approximately 273W. For accuracy, this page uses the electrical calculation rather than the supplier's 500W claim.

🔌 54.6V Charger Compatibility

The OHRIJA HRH300 54.6V charger is intended for compatible:

• 48V eBikes

• 48V electric scooters

• 48V 13S lithium-ion batteries

• 48V replacement battery packs

• Compatible outdoor lithium-ion power systems

• Custom 13S lithium-ion battery configurations

Before Ordering, Verify:

Battery: 48V nominal
Series configuration: 13S
Full-charge voltage: 54.6V
Chemistry: Lithium-ion / compatible LiPo
Charging current: Supported by battery and BMS
Connector: Correct plug and polarity

🧠 CC/CV Smart Charging

The HRH300 uses a Constant Current / Constant Voltage (CC/CV) charging profile.

During the primary charging stage, the charger supplies the configured current. As the battery approaches its target voltage, the charger transitions toward constant-voltage operation and the charging current tapers.

This is the standard charging approach used for many lithium-ion battery systems.

Important: The charger should not be assumed to perform individual-cell balancing unless the manufacturer specifically confirms that functionality. Cell balancing is normally handled by the battery's BMS.

🛡️ Built-In Protection

The HRH300 incorporates multiple protection functions designed to protect the charger and connected system.

Short-Circuit Protection – SCP

Helps protect the charger if the output terminals become shorted.

Over-Voltage Protection – OVP

Helps prevent the charger from exceeding its configured output-voltage limit.

Over-Current Protection – OCP

Helps limit output current to the selected charging-current range.

Over-Temperature Protection – OTP

Helps protect the internal electronics if operating temperatures become excessive.

🧱 Compact & Portable Design

The HRH300 is designed to provide substantial charging capability without the size and weight of many larger power supplies.

Approximate dimensions:
135 × 90 × 50 mm

Approximate weight:
0.7 kg / 1.54 lb

Its compact design makes it suitable for:

• Home charging

• Garage workshops

• E-bike maintenance

• Mobile charging kits

• Travel and outdoor riding

Always operate the charger on a hard, stable, non-flammable surface and keep ventilation openings unobstructed.

📊 Technical Specifications

🔌 How to Use the Charger

Step 1 – Check Your Battery

Confirm that your battery is a compatible 48V lithium-ion / 13S pack requiring a 54.6V charger.

Step 2 – Connect the Charger

Connect the charger's DC output connector to the battery's charging port.

Step 3 – Connect AC Power

Connect the AC power cord to a suitable wall outlet.

Step 4 – Monitor Charging

Allow the charger to complete the charging process. Keep the charger uncovered and properly ventilated during operation.

Step 5 – Disconnect When Finished

When charging is complete, disconnect the charger according to the battery and charger's operating instructions.

Always follow the instructions supplied with your battery and charger.

⚠️ Important Battery Compatibility Warning

This charger is intended for compatible lithium-ion battery systems.

Do not use it with a battery simply because the battery is labeled “48V.”

Verify the battery's chemistry and charging voltage first.

Do not use this charger with:

• LiFePO4 batteries unless specifically approved

• Lead-acid batteries

• Ni-MH batteries

• Other battery chemistries requiring different charging voltages

Using the wrong charger can damage the battery or electrical system and may create a fire or safety hazard.

❓ Frequently Asked Questions

What charger do I need for a 48V eBike battery?

A standard 48V lithium-ion battery normally requires a 54.6V charger.

Is 54.6V too high for a 48V battery?

No. A standard 48V lithium-ion battery is typically rated at 48V nominal and reaches approximately 54.6V when fully charged.

What is the difference between 2A, 3A, 4A and 5A?

The amperage determines the maximum charging current. Higher current can reduce charging time, but the battery and BMS must be designed to accept that charging rate.

Can I use the 5A version on any 48V battery?

Not necessarily. Confirm that your battery's manufacturer or BMS supports a 5A charging current before using the 5A model.

Can I use this charger on a 52V battery?

No. A standard 52V lithium-ion battery typically requires a 58.8V charger, not 54.6V.

Can I use this charger on a 36V battery?

No. A standard 36V lithium-ion battery typically requires a 42V charger.

Can I use this charger on a 60V battery?

No. A standard 60V lithium-ion battery typically requires a 67.2V charger.

Does the charger balance the cells?

The supplied product information describes a multi-stage charging process, but individual cell balancing should not be assumed unless specifically confirmed by the manufacturer. Cell balancing is generally managed by the battery's BMS.

📦 What's Included

• 1 × OHRIJA HRH300 54.6V Smart Fast Charger

• 1 × AC Power Cable

• User instruction documentation

🛒 Choose Your 54.6V Charger

Select the charging current that matches your battery's requirements:

2A • 3A • 4A • 5A

Before ordering, verify:

48V Battery • 54.6V Required Output • Compatible Amperage • Correct Connector • Correct Polarity

Not sure which charger you need? Check your battery label for the required voltage and charger specifications before ordering.

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- 100% new, high-quality, super protection.

- Connectors: DC5.5-21mm* Three-pin XLR 18MM*GX16 12MM and RCA 8MM

- Charging indicator: red when charging, green when full

- Security protection: OVP/OCP/ overload protection/short circuit protection

- Color: Black

- Plug EU/US/AU/UK(Please select the plug in your country, we will ship according to the plug you choose,)

 

Charger use and maintenance:

 

1. When charging, connect the plug to the battery first, and then connect the AC. When full, cut off the AC and unplug the battery. If you unplug the battery first when charging, especially when the charging current is large (red light), it is easy to damage the charger.

 

2. When the LED indicator turns green, please continue charging for 2-3 hours.

 

3. Please do not use up the battery power and then charge it. Otherwise, the battery cannot be protected or may even be damaged.

 

(4) Long-term shallow discharge of the battery, about 3 months or so, for a deep discharge, is the so-called re-lighting, which is conducive to activating the battery's deep long-term immobile substances. Glow-in-the-dark refers to the ride controller battery undervoltage protection action.

 

5. Please use the charger in a dry place.

 

6. Do not always connect to the power supply when you are not using the charger.

 

7. Please confirm your battery, as it is used to charge lithium batteries. Do not use the charger on the LiFePO4 battery; otherwise, the charger will become very hot