BLUETTI B300S Expansion Battery User Manual

: June 17, 2024
: Bluetti

Table of Contents

BLUETTI B300S Expansion Battery
Before You Begin
Safety Instructions
Maintenance
What’s In The Box
Product Overview
Specifications
Operation
Charging
Appendix
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BLUETTI B300S Expansion Battery

BLUETTI-B300S-Expansion-Battery-PRODUCT

Thank You!

Thank you for making BLUETTI a part of your family.
From the very beginning, BLUETTI has tried to stay true to a sustainable future through green energy storage solutions for both indoor and outdoor use while delivering an exceptional eco-friendly experience for our homes and our world.
That’s why BLUETTI has a presence in 70+ countries and is trusted by millions of customers across the globe.

Before You Begin

The information contained herein is subject to change without notice.
For the latest version, please visit https://www.bluettipower.eu/pages/manuals.
The user manual contains instructions and notes on the operation and use of this unit.
BLUETTI recommends that you use genuine accessories from BLUETTI.
BLUETTI shall not be responsible for any damage or expense that might result from the use of parts other than genuine parts from BLUETTI.
For your safety and benefit, please read carefully before using it and keep it handy for future reference.

Safety Instructions

General Safety

BLUETTI products are developed to be safe and reliable.
Please read this guide for important safety information about your device.
The guide is intended to help you be more comfortable and productive while using this device.
Failure to follow these guidelines for proper setup, use, and care for your device may cause damage to this unit and injury to yourself or others.

SAVE THESE INSTRUCTIONS!

Always operate or store the unit by a specified temperature range.
DO NOT expose the unit to fire, liquids, sweat, dirt, or other contaminants, as that may cause the battery to explode or leak flammable liquid or gas.
DO NOT place the unit on an unstable or tilted surface.
Make sure the place where you are using the unit is well-ventilated and spacious.
Keep away from children and pets.
DO NOT modify, attempt to insert foreign objects into the battery, or immerse or expose it to water or other liquids. Batteries may explode if damaged.
Battery fluid is corrosive and may be toxic. If a battery leaks, keep the leaked fluid from touching your skin, eyes, clothes, or other surfaces. Immediately flush the affected areas with water, or seek medical help.
DO NOT ignore those warning signs on components or products made by manufacturers.
DO NOT dismantle, cut, crush, puncture, or otherwise damage the unit in any way.
DO NOT insert foreign objects into the fan, vents, ports, or other openings.
NEVER use a damaged battery or component. Improper use or misuse of damaged batteries may cause damage to your device or injury to yourself as a result of battery fluid leakage, fire, overheating, or explosion.
Use approved batteries and accessories ONLY. Improper use or use of unapproved or incompatible batteries or components may result in a risk of fire, explosion, or other hazards, and may invalidate any approval or warranty.
Turn off the unit IMMEDIATELY in case of malfunction.
Use dry powder fire extinguisher in case of fire.
DO NOT attempt to modify, or replace the internal battery or any other component of the unit by anyone other than qualified personnel.
If necessary, take it to an authorized service center as incorrect reassembly may result in a risk of fire or electric shock. SAVE THESE INSTRUCTIONS!

Maintenance

When not using the unit for extended periods, power off the unit and disconnect the AC adapter from the outlet.
Charge the unit to 80% SOC every 3-6 months for long-term storage.
Clean the unit with a dry cloth gently and carefully.

Handling and Storage

Use mechanical assistance as needed (e.g. trolleys and adjustable height workbenches).
DO NOT stack anything on top of the unit either in storage or in use.
Recommended storage temperature: -4-104°F/-20-40°C,

What’s In The Box

Standard Packaging

$BLUETTI-B300S-Expansion-Battery-FIG-1 $1$$

The below accessories are not included in standard packaging and can be purchased separately at https://www.bluettipower.eu/.

$BLUETTI-B300S-Expansion-Battery-FIG-1 $2$$

P150D Battery Expansion Cable: 31.5in/80cm.
DC Input Cable: 27.6in/70cm. MC4 to XT90.
AC Adapter: 118in/300cm.
Car Charging Cable: 59in/150cm. Cigarette lighter port to MC4.
Lead-acid Battery Charging Cable!: 20in/50cm. Clamp to MC4.
DO50S Charging Enhancer Kit: DOSOS: 47in/120cm.
PV Charging Cable: 27.6in/70cm. MC4 to DC7909
Car Charging Cable: 20in/50cm. Cigarette lighter port to DC7909.
Lead-acid Battery Charging Cable?: 20in/50cm. Clamp to DC7909.
USB-C to USB-C Cable: 79in/200cm.
Cigarette Lighter-F to DC5521 Cable (12V): 28in/72cm.
AC Adapter (No cable included) + MC4 to DC7909 Cable: 47in/120cm; 5.5in/14cm.

Note: All measurements are for reference only. Package details are subject to change without prior notice.

Works with DO50S DC charging enhancer and connects to the adapter input port.
Connects B300S directly with the lead-acid battery.

Product Overview

Diagram

$BLUETTI-B300S-Expansion-Battery-FIG-1 $3$$

Power Indicator*
Cigarette Lighter Port
USB-C PD3.0
DC Power Button
18W USB-A Port
Power Button
Battery Expansion Port
PV Input
Adapter Input

These lights represent the power level, one light for 20%. When it drops to 20%, please recharge the B300S for an extended lifespan.

Specifications

B300S

Cigarette Lighter Port *7

Operation

Powering On/Off

Startup/Shutdown: Press the power button to start up or shut down this unit.

Operation| Greenlight(on the button)| Power Indicator Light
---|---|---

Startup

|

ON

|

ON

Shutdown| OFF| OFF

DC Output: Press the DC power button to start up or shut down.
Note: Unplug to turn off the unit. Connect to the power source and it turns on automatically.

BLUETTI APP

Download the BLUETTI App from Google Play or App Store.
The remaining battery capacity can be viewed from the App when connected with AC500.
The firmware can also be over-the-air (OTA) upgraded. For more details, please refer to the BLUETTI App.

Note: Keep your phone no more than 5m/16.4ft away from the unit during the update.

Charging

AC Charging: Simply plug the B300S into a standard wall outlet and start charging. $BLUETTI-B300S-Expansion-Battery-FIG-1 $5$$

PV Charging

Connect the solar panels (in series or parallel) to B300S with the DC input cable.

Note: Please make sure your solar panels comply with:
OCV: 12-60V Vmp”: 12-60V Input Power: 500W Max
Eg: Connect two BLUETTI PV200 solar panels in series to charge the unit.
BLUETTI PV200: Voc=26.1V Vmp=20.5V Current=9.7A Max.
Total: Voc=26.1×2=52.2V Vmp=20.5×2=41V Current=9.7A Max. $BLUETTI-B300S-Expansion-Battery-FIG-1 $6$$
OCV: Open circuit voltage, also for voc. The maximum voltage that the solar panel can produce with no load on it.
Vmp: Voltage at maximum power. The voltage is available when the panel is operating at its peak performance output.

Car Charging

Connect the B300S to the vehicle plug-in cigarette lighter port via the DC input cable and car charging cable. $BLUETTI-B300S-Expansion-Battery-FIG-1 $7$$

Dual Charging

The B300S also supports charging from adapter and solar panels at the same time. $BLUETTI-B300S-Expansion-Battery-FIG-1 $8$$

Capacity Expansion

Connect the B300S with the BLUETTI AC500 power station by P150D battery expansion cable.
a: Enable/disable the battery expansion function.
b: Lock/unlock the connection. $BLUETTI-B300S-Expansion-Battery-FIG-1 $10$$ $BLUETTI-B300S-Expansion-Battery-FIG-1 $11$$

B300S Capacity Expansion Tutorial

Note: Press the power button either on AC500 or B300S to turn on the AC500 + B300S combo.

When AC500 is connected to the grid or solar panels, the combo turns on automatically.
If there’s only one B300S connected, the combo delivers a maximum output of 4500W.
To get 5000W AC output, connect at least one expansion battery to each expansion port.

Appendix

FAQS (Frequently Asked Questions)

Q: Can it charge and discharge at the same time?
- A: Yes. It supports pass-through charging. B300S comes with the premium LiFePO4 battery and proprietary Battery Management System(BMS) to ensure that it can charge and discharge at the same time.
Q: Can I use third-party solar panels to charge this unit?
- A: Yes, you can. As long as the specs of solar panels you’re using fall in below range:
- OCV: 12-60V
- Vmp: 12-60V
- Input Power: 500W Max.
- With the same power connector (MC4) DO NOT mix different types of solar panels.
Q: How to upgrade the firmware of B300S?
- A: Connect it to the AC500 or other compatible power station, pair the system with the BLUETTI App, and you can over-the-air (OTA) upgrade the firmware including ARM, DSP, HMI, and BMS.
Q: How to store the B300S expansion battery for a long time?
- A: Charge it to 80% SOC every 3-6 months for long-term storage.