Reviewed by David L.
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I recommend this product
Age Range
65+
New battery
Works great
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| Quality |
Rated 5 out of 5
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|---|---|
| Easy to Use |
Rated 5 out of 5
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BigBattery · Batteries
SKU: F-NXUS-48150-G1
BigBattery NEXUS 14.3kWh 48V LiFePO4 Battery
Unlock reliable, high-capacity off-grid power with the BigBattery 48V 15kWh NEXUS—one of the most affordable, scalable LiFePO₄ battery systems on the market.
- Regular price
- $2,845.00
- Sale price
- $2,845.00
- Regular price
-
$3,999.00
Orders processed in 24–48 hours
30-day returns
Lifetime support by phone, chat & email
Full manufacturer warranty
Questions before you buy?
Call 877-242-2792 and we’ll work it out with you. Mon–Thu 10am–5:30pm, Fri 10am–1pm EST.
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Ships from the USA
Warehouses in CA, TX and NY
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Specifications
The details.
Unlock reliable, high-capacity off-grid power with the BigBattery 48V 15kWh NEXUS—one of the most affordable, scalable LiFePO₄ battery systems on the market. Designed for seamless integration, rugged performance, and long-term reliability, NEXUS is the ideal choice for residential, commercial, and off-grid solar setups.
Whether you're building a backup energy system or powering a remote cabin, the NEXUS delivers peace of mind with smart features like a built-in heater, fire suppression system, and advanced BMS for real-time protection and monitoring.
Key Features & Benefits:
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15kWh Capacity – Delivers uninterrupted, high-demand power for off-grid and hybrid solar systems.
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Expandable to 225kWh – Connect up to 15 units in parallel for massive energy storage.
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Advanced LiFePO₄ Chemistry – Safe, long-lasting cells rated for 4,000+ cycles at 80% DoD.
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DIY-Friendly Setup – Floor-standing design with plug-and-play terminals and harnesses.
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All-Climate Operation – Integrated heater and thermal management system support -4°F to 113°F.
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Quadruple BMS Protection – Built-in smart Battery Management System with real-time alerts.
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Emergency-Ready – Fire suppression system ensures added safety in any application.
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Inverter-Compatible – Works with EG4, Sol-Ark, Victron, Solis, LUX, and more.
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Indoor/Outdoor Ready – Rugged, compact design for homes, garages, sheds, or cabins.
Perfect For:
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Residential solar energy storage
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Off-grid cabins and homesteads
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Emergency backup power (EPS)
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Commercial and industrial energy systems
Take control of your power with scalable, maintenance-free lithium storage you can trust—backed by Shop Solar’s legendary support.
User Manual / Documents:
- SKU#
- F-NXUS-48150-G1
- Battery Specifications
- NEXUS 15KWh
- System Voltage
- 48V
- Nominal Voltage
- 51.2V
- Chemistry
- LiFePO4
- Usable Energy (kWh)
- 15kWh
- Ah Capacity
- 300Ah
- Cell Configuration
- 16S1P
- Max Continuous Discharge Current
- 140A
- Max Continuous Power
- 7.6kW
- Max Discharge Peak Current
- 270A(1s)
- Max Charge Current
- 140A
- Charging Voltage Range
- 53.5V-57.6V
- Operating Voltage Range
- 48V-57.6V
- Max Charge Voltage
- 57.9V
- Suggested Low Voltage Cutoff
- 50.8V
- Charge Temp Range
- 32°F to 113°F
- Discharge Temp Range
- -4°F to 113°F
- Optimal Discharge Temp
- 59 °F to 95°F
- Storage Temp Range (SoC >50%)
- (1 month: -4°F ~ 113°F | 3 months: -4°F ~ 95°F | 6 months: -4°F ~ 77°F)
- Humidity Range
- 10%-95% (No Condensation)
- Weight (lbs)
- ~315 lbs
- Dimensions (WxHxD)
- 19.7 x 27.5 x 15.7 in (500×700×400 mm)
- Altitude Limit
- <2000m
- Max Connections
- 15 in parallel (up to 225kWh)
- Communications
- RS485 / RJ45 / CAN
- Protection Rating
- IP54
- Installation
- Indoor Floor-standing
- Warranty
- 12-Year Limited Warranty