OUKITEL B2000E Smart Battery Expansion User Manual

June 16, 2024
OUKITEL

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Smart Battery Expansion
B2000E

OUKITEL B2000E Smart Battery Expansion

User Manual

B2000E Smart Battery Expansion

Dear customer,
Thank you for purchasing our product. Please read the following instructions carefully before first use and keep this user manual for future reference. Pay particular attention to the safety instructions. If you have any questions or comments about the device, please contact the customer line.
www.alza.co.uk/kontakt
+44 (0)203 514 4411
Importer Alza.cz a.s., Jankovcova 1522/53, Holešovice, 170 00 Praha 7, www.alza.cz

Specifications

Model B2000E
Battery Type LiFePO4
Capacity 2048Wh, 3.2V, 640000mAh (51.2V, 40000mAh)
Input AC (XT60)
Solar charging 12V – 48V / 10A,

(XT60) 200W Max
Car charging| 12V – 8
24V – 8.3A
Recharging with BP2000E / BP4000
Output| USB-A| 5V – 2.4A, 12W
USB-C|

5V – 3A / 9V – 3A / 12V – 3A / 15V –  3A/ 20V – 5A 100W PD

Cigarette lighter socket| 12V – 10A, 120W
XT90| 48V – 15A, 720W
MPPT Control System| Maximum power point tracking
Battery Life Cycles| 3500
Discharging Temperature| -10°C – 40°C (20°C – 30°C recommended)
Charging Temperature| 0°C – 40°C (20°C – 30°C recommended)
Dimensions| 47.5 x 29.6 x 24.15 cm
Weight| 18.6 kg

Packaging

OUKITEL B2000E Smart Battery Expansion - Packaging

Diagram

OUKITEL B2000E Smart Battery Expansion - Diagram

  1. LCD Display
  2. 12V – 10A, Cigarette lighter socker
  3. 48V – 15A, XT90 Output
  4. 5V – 2.4A, USB-A Output
  5. PD100W, USB-C Output
  6. DC Switch
  7. Main power switch
  8. 12V – 48V, 10A max, 200W max, XT60 Input
  9. First battery expansion port
  10. Second battery expansion port

Power Functions and Charging Instructions

Main Power Switch
To operate the device, press the power button for 3 seconds to turn it on, and press it again for 3 seconds to turn it off. Additionally, a short press on the switch controls the activation or deactivation of the LCD display. If there’s no activity for 30 minutes, the  LCD display will automatically turn off, and subsequently, the power will be switched off as well.

DC Switch

  1. Activation: Press and hold the main power switch for 3 seconds to power up the station. Use a short press on the DC button to toggle the DC / USB output ports on or off.
  2. Battery Check: Regularly check the remaining battery power. If the battery level drops below 10%, it’s advised to recharge the battery promptly.
  3. Power Output: Connect the device to the DC cigarette lighter socket with a 48V XT90 Output. Notably, it’s recommended to turn off the DC output switch when the port is not in use to conserve power.

XT60 Input Port Recharging
AC Wall Outlet Charging

  1. Plug the adapter into a wall outlet and connect the other side to the XT60 input port for automatic charging, even when the main power is off. During charging, the LCD screen will display the remaining power percentage, and the battery indicator will  blink. It will also provide details on XT60 input, input power, and the estimated time for a full charge.
    OUKITEL B2000E Smart Battery Expansion - AC Wall Outlet
Charging

Solar Panel Charging

  1. Place a compatible Solar Panel (not included) in direct sunlight and connect it (in series or parallel) with an open circuit voltage range of 12V – 48V for charging. The maximum input current for solar charging is 10A, with a max input power of 200W. If the  input power exceeds 200W, it will cap at 200W. However, charging is only possible within the 12V – 48V range. Ensure proper connection using an MC4 plug to the solar panel and XT60 to the input port for automatic charging, even when the power is off.  Similar to AC charging, the LCD screen will provide charging details such as remaining power, input power, and estimated full charge time.
    OUKITEL B2000E Smart Battery Expansion - Solar Panel
Charging

Car Charging

  1. Use the provided XT60-Car Charging Cable to connect the B2000E device to the car’s cigarette lighter port. During charging, the LCD screen will display details regarding power input and the estimated time for a full charge.

OUKITEL B2000E Smart Battery Expansion - Car Charging

BP2000E / BP4000+B2000E Smart Expansion Battery

  1. For expanded charging options, connect the B2000E expansion battery with BP2000E / BP4000, then connect them to a wall outlet. The maximum input power for charging the B2000E / BP4000 and B2000E battery is 1800W. Use the parallel cable to  connect the Battery Expansion Port of BP2000E / BP4000 to the Battery Expansion Port 1 of B2000E, then connect the Battery Expansion Port 2 of B2000E to the Battery Expansion Port 1 of another B2000E. The LCD display will showcase the remaining  power and charging status during this process.

LCD Display

OUKITEL B2000E Smart Battery Expansion - LCD Display

  1. Remaining time for charge / discharge

  2. High temperature warning

  3. Low temperature warning

  4. Power percentage indicator

  5. XT60 input status

  6. Cumulative input power

  7. Total output power consumption

  8. 48V XT90 output status

  9. Cigarette lighter (12V) output indicator

  10. Battery expansion symbol

  11. Silent mode activation

  12. Overload safeguard

  13. USB-A output status

  14. USB-C output status

  15. Voltage protection mechanism

  16. Current protection feature

  17. Short circuit safety

  18. Battery pack protection status

  19. When the LCD screen displays it indicates correct connection between BP2000E and B2000E.

  20. If the B2000E is linked with the BP2000E and the LCD screen shows , it confirms a proper BP2000E + B2000E connection, allowing for mutual recharging and discharging capabilities.

Note:

  • If the remaining power is below 5% when connecting the BP2000E with B2000E, paralleling is not feasible due to significant battery voltage differences. However, activating the input power source allows successful activation and recharging of both the  BP2000E and B2000E.
  • Typically, after connecting the BP2000E and B2000E, the higher battery device will autonomously charge the lower battery. Yet, if one device is below 5%, the system identifies a substantial voltage gap, impeding a successful connection.
  • In such cases, activating the input power source enables successful activation and recharging of both the BP2000E and B2000E.

Enhancing Power Expansion with BP2000E / BP4000E

  1. Multi-Battery Expansion: The BP2000E / BP4000 accommodates connection with up to 7 expansion batteries, amplifying the total capacity to 16384Wh.
  2. Unified Power Activation: Upon connecting the BP2000E / BP4000 with the B2000E, a long press on either unit’s main power button will simultaneously power ON both devices.
  3. Quick Power Toggle: A short press of the main power button turns off the LCD screen and prompts the indicator to blink.

Guidelines for Connection

  1. Prior to connecting the B2000E expansion battery, ensure both the BP2000E / BP4000 and B2000E are powered off.
  2. Verify the display of the parallel power icon on both the BP2000E/BP4000E and B2000E screens after connecting the B2000E expansion battery before use.
  3. Before connecting or disconnecting the B2000E expansion battery, first turn off the B2000E.
  4. Avoid direct contact between hands and the wire’s metal terminal; use a dry cloth for handling.
  5. Ensure secure connections between the parallel wires and ports to prevent terminal heat, potential device functionality issues, or fire hazards.
  6. When charging the BP2000E / BP4000 + B2000E, connect the BP2000E / BP4000 to the wall outlet/solar panel for charging. Disconnect the B2000E before rejoining it to the BP2000E / BP4000 if it was separately linked to the AC adapter/solar/car  charger.
    OUKITEL B2000E Smart Battery Expansion - car charger

BP2000E / BP4000+B2000E Expansion Battery Pack

  • Input Limitation: When utilized in this configuration, the B2000E expansion batterysolely expands capacity and ceases charging even when connected to the AC adapter or solar/car charging board.
  • Output Restriction: The 12V / 48V / USB output ports on the B2000E expansion battery remain inactive in this setup.

OUKITEL B2000E Smart Battery Expansion - Battery Pack
1

BP2000E / BP4000 Expansion Battery Pack

  • The B2000E expansion battery A functions normally for both input and output.
    However, input and output for B2000E expansion batteries B and C are halted in this configuration, serving solely for capacity expansion.

OUKITEL B2000E Smart Battery Expansion - Battery Pack
2

Troubleshooting

Error Problem Solution
The internal temperature of the device is high. Let the device sit and

cool before restarting.
Recommended temperature 20°C – 30°C
| The internal temperature of the device is low.| Use the device in a normal temperature environment.
Recommended temperature 20°C – 30°C
| Voltage protection.
Overvoltage has occurred at the internal battery or  PV input.| Disconnect the input terminal, check that the voltage  on the input terminal is within the allowable  range, and then reconnect.
| Current protection. A BMS charge/discharge overcurrent has occurred.| Disconnect the input terminal and turn off the power, then reconnect it. Disconnect the output  terminal, and turn on the power, then reconnect it.
| Short circuit protection. A BMS failure has occurred.| Please contact customer service at
support@oukitelpower.com
| Battery pack protection. A battery pack failure or BMS communication error has Occurred| Please contact customer service at support@oukitelpower.com
| An error has occurred in the output| Check the load of the connected device. Check the connection with the output terminal.

Frequently Asked Questions

1. What causes the noise when in use?

The noise may emanate from the fan or relay during startup or operation.

2. Is it normal for the charging cable to heat up during use?

Yes, it's normal. Our charging cable adheres to national safety standards and has undergone certification.

3. How can I check the remaining discharge time?

Refer to the LCD screen for the remaining discharge time, displayed upon turning on the device.

4. How can I confirm if the product is charging?

During charging, the product screen will indicate the input wattage, accompanied by a blinking power percentage indicator.

5. How should I clean the product?

Gently wipe the product using a dry, soft, clean cloth, or tissue.

6. What's the recommended storage method?

Switch off the product and store it in a dry environment, avoiding proximity to water. For long-term storage, it's advisable to use the product every three months. Use up the remaining power, recharge to your desired percentage (e.g., 50%), and store it accordingly.

Maintenance Guidelines

  1. It is advised to use or store this product within an environment ranging from 20°C to 30°C. Keep it away from water, heat sources, and metallic objects.
  2. For safety precautions, avoid storing this product in environments exceeding 45°C or dropping below -10°C for extended periods.
  3. When not in use for an extended duration, charge the product to 60%. Prolonged storage with a significantly depleted battery may cause irreparable damage and reduce the product’s lifespan.

Warranty Conditions

A new product purchased in the Alza.cz sales network is guaranteed for 2 years. If you need repair or other services during the warranty period, contact the product seller directly, you must provide the original proof of purchase with the date of purchase.

The following are considered to be a conflict with the warranty conditions, for which the claimed claim may not be recognized:

  • Using the product for any purpose other than that for which the product is intended or failing to follow the instructions for maintenance, operation, and service of the product.
  • Damage to the product by a natural disaster, the intervention of an unauthorized person or mechanically through the fault of the buyer (e.g., during transport, cleaning by inappropriate means, etc.).
  • Natural wear and aging of consumables or components during use (such as batteries, etc.).
  • Exposure to adverse external influences, such as sunlight and other radiation or electromagnetic fields, fluid intrusion, object intrusion, mains overvoltage, electrostatic discharge voltage (including lightning), faulty supply or input voltage and inappropriate polarity of this voltage, chemical processes such as used power supplies, etc.
  • If anyone has made modifications, modifications, alterations to the design or adaptation to change or extend the functions of the product compared to the purchased design or use of non-original components.

EU Declaration of Conformity

This equipment is in compliance with the essential requirements and other relevant provisions of Directive 2014/35/EU, 2014/30/EU and Directive 2011/65/EU amended (EU) 2015/863.

WEEE

This product must not be disposed of as normal household waste in accordance with the EU Directive on Waste Electrical and Electronic Equipment (WEEE – 2012/19 / EU).
Instead, it shall be returned to the place of purchase or handed over to a public collection point for the recyclable waste. By ensuring this product is disposed of correctly, you will help prevent potential negative consequences for the environment and human  health, which could otherwise be caused by inappropriate waste handling of this product. Contact your local authority or the nearest collection point for further details. Improper disposal of this type of waste may result in fines in accordance with national  regulations.

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References

Read User Manual Online (PDF format)

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