OHRIJA charger razor scooter 73V 4A charger makes it suitable for 20S 64V Lifepo4 batteries

Warning

Please confirm the required parameters, input plug and output connector. If you cannot confirm, please do not buy or contact customer service for support. Thank you!
1. Do not use in high temperature, dark and humid environment
2. Keep it in a ventilated environment
3. Keep away from flammable and explosive items

Product parameters

Product model: HRH300
Product material: aluminum alloy shell
Output voltage: maximum 73V ±0.2v
Output current: maximum 4Amp ±0.2a
Product size: 135*90*50MM 0.9kg
Applicable battery type:20S 64V Lifepo4 battery
Working power: maximum 290W
Color: black, silver,red,blue,green optional
Input plug: US, EU.UK.AU (select the correct plug according to local standards)
Output connector:XT60 | XT90 | Crocodile Clip | Anderson 50A | Wire Nose | DC5.5*2.5 | XLR | 45A | IEC C13(select the correct connector according to the battery port)
Package: charger * 1, DC 1m output cable * 1, input cable 1m * 1, instruction manual * 1

Product Introduction

1.Efficient Charging
Adopting advanced switching power supply technology, the charging efficiency is as high as 85% or more, shortening the charging time and reducing energy consumption.
2.Constant voltage and constant current charging mode
The charger works in constant current (CC) mode until the battery voltage approaches the set value (73V), and then switches to constant voltage (CV) mode to ensure the safety of the charging process and avoid overcharging.
3.Intelligent temperature control 
The built-in temperature sensor can monitor the charger temperature in real time. When the temperature exceeds the safe range, it automatically reduces the charging current or suspends charging to prevent overheating.
4.Multiple protection functions
· Overvoltage protection: When the voltage exceeds the safe range, the charger automatically cuts off the power to prevent battery damage.
· Overcurrent protection: When the current exceeds the rated value, the output current is automatically limited to protect the battery and charger.
· Short circuit protection: The charger has a short circuit protection function to avoid dangers caused by short circuits.
· Reverse connection protection: When the positive and negative poles of the battery are reversed, the charger automatically stops working to avoid damage to the battery and charger.
5 LED indicator lights
The charger is equipped with LED indicator lights to display the current charging status:
· Red light: Charging.
· Green light: Charging completed or standby.
6.Voltage and current can be calibrated
· The adjustable resistor VR1 inside the charger can be calibrated between 60-73V
· The adjustable resistor VR2 can calibrate the current between 3 and 4 amps
· The charger needs a battery voltage of at least 36V to work
· The charger can directly output voltage and current for use as an adapter

Charger razor scooter Applicable devices

· This 73V 4A battery charger is designed for RV  and other Lifepo4 battery devices. The charger uses high-efficiency conversion technology to ensure · fast and safe battery charging and extend battery life.
The charger is only suitable for 20S 64V Lifepo4 batteries, rv battery chargers  and other 20S 64V Lifepo4 battery devices.charger razor scooter.

Charging time

· The 73V 4A Lifepo4 battery charger is designed for fast charging of 20S 64V Lifepo4 batteries and can charge 20S 64V Lifepo4 batteries at a rate of 4 amps.
· With a maximum voltage of 73V and a rated current of 4 Amp, it can fully charge a 28Ah Lifepo4 battery in about 7 hours and a 40Ah battery in about 10 hours. A 80Ah battery can be fully charged in 20 hours. For smaller batteries (<10Ah), we recommend using a 4A charger. All Lifepo4 batteries should be charged using a charger that is compatible with Lifepo4 batteries, such as this one. Using other types of chargers to charge the battery will reduce the performance and life of the battery.

Frequently asked questions

1. Not working
· Check if the AC input voltage is 110 or 220V
· Check if the input AC terminal is connected correctly and if the fuse is damaged
· Check if the output connector is connected correctly, if it matches, and if the fuse is damaged
· Check if the BMS system is protected
2. How loud is the noise
Since there is a fan inside the charger, the noise is about 40-60 db