Yoshino B4000+2*EXB1 Expansion Battery Kit - 4000W/7735Wh

Yoshino B4000+2*EXB1 Expansion Battery Kit - 4000W/7735Wh

Sale price$5,999.00 Regular price$8,897.00
Model: 7735Wh丨B4000+2*EXB1
2562Wh丨EXB1 5124Wh丨2*EXB1 5173Wh丨B4000+EXB1 7735Wh丨B4000+2*EXB1

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  • INCREASE CAPACITY – With an additional 2562Wh; this expansion battery will keep your B4000 SST running for even longer. With a full ETL certification, safety features include over voltage, over current, overcharging, over-discharging, thermal, and short circuit protection. The SST battery is rated for 4,000 cycles to 80% (11 years of everyday use).
  • ADVANCED SOLID-STATE TECHNOLOGY—Solid-state technology (SST) is the evolution of lithium batteries, which provide safer, more compact, and lighter power output than their conventional lithium-ion or LiFePO4 counterparts. The new solid-state battery provides safer and more compact power for off-grid and recreation use.

  • FLEXIBLE POWER STORAGE – 48V DC output is available for use when running the expansion battery independently, an adapter is included.
  • AWARD-WINNING COMPACT DESIGN – A single solid-state cell holds up to double the capacity of a LiFePO4 battery cell. This maximizes power efficiency in a smaller, lighter, compact unit. Why lug heavy equipment, with Yoshino you don't have to.

  • MORE POWER WITH INFINITY LINK- Infinity Link allows the ability to connect additional 2,562Wh batteries together to increase capacity. With integrated Infinity Link technology, you can link up to 15 expansion batteries, allowing the ability to match just about any capacity needs of up to 41kWh.

  • INDEPENDENT SOLAR INPUT - The EXB1 can accept up to 1200W solar input for additional charging options when off-grid, camping, or in emergencies.

  • FAST RECHARGING - The EXB1 can be recharged to 80% in 90 minutes by connecting with B4000 (1800W Max AC Charging) or in 105 minutes using 1200W solar charging.

  • SMART AC CHARGING MANAGEMENT - AC charging will be prioritized when EXB1 is connected to the B4000 SST and using solar charging simultaneously, to ensure a stable maximum charging power of 1800W and reduce the load on the power grid.

  • WHAT'S INCLUDED - (1) EXB1 Expansion Battery, (1) Expansion Cable, (1) Solar Charging Cable MC4 to XT60, (1) Cigarette Car Charging Cable, (1) 48V DC Out Adaptor, (1) User Manual.
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The World's First Li-NCM Solid-State Technology
The World's First Li-NCM Solid-State Technology
Yoshino EXB1 Solid-State Expansion Battery for B4000
Industry-Leading Solid-State Technology
Powered by advanced Li-NCM solid-state batteries, Yoshino's batteries offer an energy density of up to 280Wh/kg—twice that of LiFePO4 batteries—delivering stable, reliable power in a more compact and lightweight form.
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Compact Design

1200W Solar Charging

Independently

Scalable Power

Outstanding

Performance

Multiple

Charging Options

Smart

Power Management

Long-Lasting Li-NCM

Solid-State Battery
More Compact and Portable Than Ever
30% Smaller

Experience unparalleled convenience with the industry’s first Li-NCM solid-state battery technology. Featuring ultra-high energy density of up to 280Wh/kg, the Yoshino EXB1 Expansion Battery packs an impressive 2562Wh of capacity into a volume that’s 30% smaller than other batteries.

Ultimate Flexibility

This compact, lightweight powerhouse fits seamlessly into any space—be it your bedroom, living room, RV, or cabin—offering you the ultimate flexibility and portability.

Scalable Backup Power for the Unexpected

With integrated Infinity Link technology. It ensures a reliable 24/7 power supply for home backup, giving you the confidence and peace of mind to handle any emergency power outages.

Needs of UP TO

41kWh

Connect of UP TO

15EXB1

Outstanding Performance in Extreme Conditions

The EXB1 Expansion Battery starts up in seconds, even in extremely cold environments as low as -4℉, without the need for preheating like traditional gas generators. Say goodbye to long wait times—instant power is within reach. It delivers 18% more power than other stations between 5℉ and 23℉, making it the ideal choice for winter living. Remaining stable and secure even at 302℉, it offers reliable protection you can trust.
Long-Lasting Power That Keeps Up With You

Supporting 1C charge and discharge, the battery offers over 4,000 cycles at 90% DOD, ensuring unmatched performance and durability. It provides extended battery life for 10 years of use, even when running at full power, effortlessly powering high-wattage appliances.

4000 Cycles,

10 Years, 5X Battery Life

Yoshino's solid-state batteries are ternary-based, which not only maintain high energy density but also significantly enhance cycle life compared to traditional ternary lithium batteries.

4000 Cycles

Yoshino Li-NCM Solid-State Battery

800 Cycles

Traditional NCM Battery

Smart Discharging Modes with BMS

Supporting 1C charge and discharge, the battery offers over 4,000 cycles at 90% DOD, ensuring unmatched performance and durability. It provides extended battery life for 10 years of use, even when running at full power, effortlessly powering high-wattage appliances.
Smart Mode

Equipped with an intelligent BMS system, the least charged battery is prioritized for charging, ensuring balanced power across all units.

Direct Mode

When you plan to go out, you can switch to the Direct Mode so that you can fill up your B4000 SST first.

Charge Your Way

Multiple Options Available

Charge up your EXB1 by connecting it to the B4000 SST power station, through car charging or solar panels as needed. When connected to the B4000 SST, the EXB1 can charge to 80% in just 90 minutes with 1800W AC charging, or in 105 minutes with 1200W solar charging.
AC Charging
Solar Charging
Car Charging

Fast-charges to 80% in just 90 minutes with 1800W AC charging. The EXB1 maintains long battery life—no compromise between speed and longevity.

Charge the EXB1 to 80% in just 105 minutes with 1200W of solar input. Its independent MPPT technology ensures up to 98% charging efficiency.

The EXB1 supports 120W car charging, allowing you to recharge while driving—ideal for road trips and on-the-go use.

Silent Power for Your Home: No Noise, No Worries
Silent Power for Your Home:No Noise, No Worries
Experience silent, uninterrupted power with the B4000 + Expansion Battery Kit. Unlike traditional generators, it operates noiselessly, making it the perfect solution for nighttime use in your home. Enjoy peace of mind knowing your power needs are met without any disturbing noise, allowing you to sleep soundly while staying powered.
Versatile for Any Scenarios

Power almost all your devices, to meet your power needs. Whether you're on an RV or yacht trip, a B4000 SST paired with an EXB1 battery can power your devices on the go. At home or in a cabin, combining a B4000 SST with two EXB1 batteries offers the perfect backup power solution.

Specifications

    • Net Weight

      44.5Ibs / 20.2kg

    • Dimensions

      21.4x10.2x9.4in / 543x260x240mm

    • Capacity

      2562Wh; 47.45V, 54Ah

    • Charging Temperature

      32 to 131 ℉ / 0 to 55℃

    • Working Humidity

      Maximum 90%

    • Discharge Temperature

      -0.4 to 140℉ / -18 to 60℃

    • Cycle Life

      4000 Cycles to 80% Capacity（1C, 90%DOD)

    • Battery Type

      Solid-State Li-NCM

    • Shelf Life

      Recharge to 80% Every 3-6 Months

    • Warranty

      5 Years

    • Car Input

      12VDC/10A, 120W Max

    • Solar Input

      12-60VDC/20A Max, 1200W Max

    • Net Weight

      44.5Ibs / 20.2kg

    • Dimensions

      21.4x10.2x9.4in / 543x260x240mm

    • Capacity

      2562Wh; 47.45V, 54Ah

    • Charging Temperature

      32 to 131 ℉ / 0 to 55℃

    • Working Humidity

      Maximum 90%

    • Discharge Temperature

      -0.4 to 140℉ / -18 to 60℃

    • Cycle Life

      4000 Cycles to 80% Capacity（1C, 90%DOD)

    • Battery Type

      Solid-State Li-NCM

    • Shelf Life

      Recharge to 80% Every 3-6 Months

    • Warranty

      5 Years

    • Car Input

      12VDC/10A, 120W Max

    • Solar Input

      12-60VDC/20A Max, 1200W Max
What's in the Box

1. EXB1 Expansion Battery
2. Expansion Cable(3.3ft/1.0m)
3. Cigarette Car Charging Cable
4. Solar Charging Cable MC4 to XT60
5. 48V DC Out(CVOUT) Adaptor
6. User Manual

FAQ