2048Wh LiFePO4 expansion battery with 3,500+ cycles, 200W solar input, MPPT, pure sine wave inverter, and versatile USB, DC, and car outputs.
360° SAFETY
Automotive-grade battery management system with sub-100µs fault response — protecting your LiFePO4 home battery, your property, and your family around the clock
PRODUCT DETAILS
Complete product details — specifications, images, FAQ, and downloadable resources for this VoltCrave power solution
As energy demands increase, a portable power station may not always provide enough battery capacity for extended backup, outdoor activities, or off-grid applications. An expansion battery provides a practical way to increase stored energy without replacing the existing power station.
The B2000 is a 2048Wh expansion battery designed to add substantial energy storage capacity to compatible portable power systems. With a 51.2V 40Ah LiFePO4 battery and more than 3500 life cycles to 80% of original capacity, it provides a durable solution for customers who need additional energy for home backup, camping, RV travel, and off-grid applications.
Developed by VoltCrave Power, this expansion battery is designed for distributors, wholesalers, retailers, and energy solution providers looking for scalable portable energy storage products for different markets.
The B2000 provides 2048Wh of energy storage with a 51.2V 40Ah LiFePO4 battery.
The additional capacity allows users to extend the runtime of compatible portable power systems and store more electricity for later use.
This makes the expansion battery suitable for applications where a standard portable power station may not provide enough stored energy, including:
Instead of purchasing a completely new high-capacity system, users can add expansion batteries according to their actual energy requirements.
The B2000 uses LiFePO4 battery technology and supports more than 3500 cycles to 80% of its original capacity.
This provides a durable energy storage solution for users who frequently charge and discharge their batteries.
LiFePO4 technology is widely used in energy storage applications where long cycle life, stable operation, and reliable battery performance are important considerations.
For B2B customers, long cycle performance can also provide greater long-term value for users who depend on their energy storage system regularly.
The B2000 is designed to expand the available energy capacity of compatible portable power systems.
When connected with a compatible BP2000 Pro system, up to seven B2000 expansion batteries can be connected, allowing total energy storage to reach 16,384Wh.
This creates a scalable energy storage platform that can grow with changing power requirements.
For customers who initially need portable backup power but may require more capacity later, expandable storage provides a flexible upgrade path.
A single B2000 can provide additional energy for everyday portable applications. Multiple units can be combined to create a much larger energy storage system.
This scalability makes the product suitable for different customer requirements, from:
For distributors, an expandable battery platform also creates opportunities to serve customers with different energy capacity requirements without offering completely different battery systems.
The B2000 is designed to work as an expansion battery for compatible portable power stations, including BP2000E, BP2000 Pro, and BP3000 models listed on the original product page.
This compatibility allows customers to build a larger energy storage system around an existing portable power platform.
For B2B energy solution providers, compatibility with multiple systems can make the expansion battery a useful addition to a portable energy product portfolio.
The B2000 is not limited to energy expansion. It also provides its own output interfaces for powering compatible electronic devices.
The system includes a 100W USB-C PD port, a 12W USB-A port, and a 12V/10A car outlet.
This allows the battery to provide direct power for devices such as:
The integrated output ports increase the versatility of the product and make it useful even when it is not connected to a larger portable power station. Convenient Portable Energy Storage
With a net weight of approximately 18.6kg and dimensions of approximately 47.4 × 29.5 × 24.15cm, the B2000 provides substantial energy storage while maintaining a portable form factor.
It can be transported and positioned in different environments according to the user’s requirements.
The battery can be used in:
This makes it a practical option for users who need additional energy capacity without installing a permanent battery storage system.
The B2000 supports up to 200W AC input for charging the battery.
This provides a convenient charging option when conventional grid electricity is available.
Users can recharge the battery before outdoor activities or restore stored energy after use, helping keep the expansion battery ready for the next application.
The B2000 also supports up to 200W solar input through an integrated MPPT controller.
The solar input supports 12–48V/10A through one XT60 port.
This allows the expansion battery to work with compatible solar panels and provides an additional renewable energy source for outdoor and off-grid applications.
Solar charging can be particularly useful for customers who spend extended periods away from grid electricity.
The B2000 supports car charging at 12V/8A and 24V/10A.
This provides an additional charging option for road trips, RV applications, and remote activities.
Users can recharge the battery through a compatible vehicle when wall power or solar energy is not readily available.
The combination of AC, solar, and car charging gives users several ways to replenish the battery.
This flexibility allows the product to adapt to different environments, whether it is being used at home, on the road, or in an off-grid location.
The product page also specifies that the B2000 has one charging inlet, so AC and solar charging cannot be used simultaneously.
The B2000 integrates a Battery Management System and MPPT controller to manage battery operation and solar charging.
The management system helps monitor operating conditions and supports stable battery performance during charging and discharging.
This provides an additional layer of control for everyday energy storage applications.
Battery safety is an important consideration for residential and portable energy products.
The B2000 is designed with battery management functions to help maintain stable operation during normal use.
The system is rated for an operating temperature range of 0°C to 40°C and a storage temperature range of -10°C to 40°C.
These specifications make it suitable for a variety of indoor and outdoor energy storage environments.
The B2000 can provide additional stored energy for compatible home backup systems.
When connected to a compatible portable power station, the expansion battery can increase the total available energy and extend backup duration.
This is particularly useful during longer power outages when a standard portable power station may not provide sufficient capacity.
Outdoor users often need more energy than a compact portable power station can provide.
The B2000 can add 2048Wh of storage while also providing direct outputs for compatible electronic devices.
Its solar and vehicle charging options further increase its usefulness for camping and RV applications.
For users living or working away from traditional electrical infrastructure, expandable battery storage can provide greater energy independence.
The B2000 can be combined with compatible portable power equipment and solar panels to create a flexible energy storage system.
This makes it suitable for:
For B2B buyers, an expansion battery can complement portable power stations by providing customers with a simple way to increase energy storage.
The B2000 can be positioned as an additional battery for customers who already own compatible power stations or as part of a larger portable energy package.
Its 2048Wh capacity, LiFePO4 battery, multiple charging options, and direct output ports give distributors several application scenarios to target.
The ability to connect multiple B2000 units provides a scalable solution for customers with increasing energy requirements.
With up to seven B2000 units connected to a compatible BP2000 Pro system, total capacity can reach 16,384Wh.
This allows the same product platform to address both portable and larger backup energy requirements.
As a professional energy storage supplier, VoltCrave Power focuses on providing flexible battery and portable energy solutions for distributors, wholesalers, retailers, and project partners.
The B2000 expansion battery combines 2048Wh LiFePO4 energy storage, more than 3500 life cycles, multiple charging options, and integrated output ports in a portable battery platform.
Its expandable architecture makes it suitable for home backup, camping, RV travel, emergency energy, and off-grid applications.
Energy requirements can change over time. An expandable battery allows customers to increase their stored energy without replacing their existing portable power system.
The B2000 provides a practical solution for customers who need additional capacity today and may require even more energy storage in the future.
VoltCrave Power provides scalable portable energy solutions designed to help global B2B partners expand their product portfolios and deliver flexible battery storage options for changing energy needs.
| Parameter | Specification |
|---|---|
| Model | B2000 |
| Capacity | 2048Wh (51.2V, 40Ah) |
| Battery Type | LiFePO4 (Lithium Iron Phosphate) |
| Life Cycles | 3,500+ cycles to 80% original capacity |
| Management System | MPPT Controller, BMS |
| Inverter Type | Pure Sine Wave |
| USB-C Port | 1 × PD 100W |
| USB-A Port | 1 × 12W (5V/2.4A) |
| 12V DC Outlet | 1 × 12V/10A Car Outlet |
| Solar Input | Max. 200W (MPPT), 12–48V/10A, 1 × XT60 Port |
| Car Input | 12V/8A, 24V/10A |
| AC Input | 200W |
| Net Weight | 41 lbs (18.6 kg) |
| Dimensions (L × W × H) | 18.7 × 11.65 × 9.5 in (47.4 × 29.5 × 24.15 cm) |
| Operating Temperature | 32°F–104°F (0°C–40°C) |
| Storage Temperature | 14°F–104°F (-10°C–40°C) |
| Certifications | CE, FCC, PSE, UN38.3, EMC, LVD, RoHS, MSDS |
| Regional Compliance | Europe: CE; U.S.: FCC |
| Warranty | 1+2 Years (Subscribed) |
No download files have been uploaded yet.
MANUFACTURING
End-to-end custom lithium battery manufacturing — from cell selection and BMS programming to enclosure design, branding, and global certification
Custom LiFePO4 battery enclosure dimensions, colors, terminal layouts, and connector types. Tailor voltage (12V / 24V / 48V) and capacity to your target market requirements.
Full OEM battery branding: laser-engraved logos, custom label nameplates, silk-screened enclosures, and exclusive retail packaging. Your brand, our lithium battery technology.
We assist distributors with CE, UL 1973, IEC 62619, UN38.3, and RoHS compliance for lithium battery imports. Complete technical documentation, MSDS, and test reports included for customs clearance.
CERTIFICATIONS
All VoltCrave lithium iron phosphate batteries are certified to international safety, transport, and environmental standards — ready for import and distribution worldwide
RELATED
Browse our full range of portable power stations, wall-mounted home batteries, RV energy systems, industrial power solutions, and more
4kW and 6.2kW hybrid solar inverter with MPPT charging, pure sine wave output, 24V/48V battery options and up to 120A charging current.
Learn More
8.6kW and 11kW 48V hybrid solar inverter with dual MPPT, dual AC output, 150A charging, pure sine wave output and parallel operation.
Learn More
4kW and 6.2kW hybrid solar inverter with dual AC output, MPPT charging, touch screen, pure sine wave output and 24V/48V battery options.
Learn MoreVoltCrave is actively recruiting exclusive distributors and OEM partners for our wall-mounted home energy storage battery series. Competitive factory-direct pricing, dedicated account management, and full marketing support for your region.
Our engineers will contact you within 24 hours
