BLUETTI B4810 LiFePO₄ 100 Ah Battery – 51.2 V

Name: BLUETTI B4810 LiFePO₄ 100 Ah Battery – 51.2 V
Brand: Bluetti
SKU: B4810
Price: 1871.99 USD
Availability: InStock

$1,871.99 - $1,871.99

$1,871.99

$1,871.99 - $1,871.99

$1,871.99

+ Free Shipping

#1 Authorized Distributor

We are an authorized distributor for all Bluetti products.

Lowest Price Guarantee

See a cheaper price? Let us know and we'll match it!

No Sales Tax

Enjoy no taxes on all orders.

Free shipping on all orders

Enjoy free domestic shipping. Click here to learn more

Talk to a Real Person

Any questions? Call (855) 434-2703 or message us on our live chat below.

BLUETTI B4810 48V LiFePO₄ Battery | Modular, Cold-Weather Ready, Expandable Energy Storage

Reliable, Scalable Power for Any Environment

The BLUETTI B4810 is a 48V (51.2V nominal), 100Ah lithium iron phosphate (LiFePO₄) battery designed for home energy storage, RV house systems, and marine applications (non-propulsion). Built for durability, safety, and long life, the B4810 features IP65 protection, integrated smart BMS, built-in self-heating for cold climates, and scalable parallel expansion—making it ideal for residential, mobile, and off-grid energy setups.

Key Features:

High-Cycle LiFePO₄ Chemistry: Rated for up to 6,000 cycles at 70% capacity (0.5C, 25°C), providing years of reliable energy storage with minimal capacity loss.
All-Weather Operation: Built-in self-heating allows safe charging even in extreme cold (down to −20°C / −4°F), ensuring consistent performance year-round.
Modular & Expandable: Connect up to 24 B4810 batteries in parallel, with eDock interface support for more than 8 units, for fully customizable energy systems.
Rugged IP65 Enclosure: Dust-tight and water-resistant, designed for demanding residential, RV, and marine installations.
Smart Battery Management System (BMS): Comprehensive protection for over/under-voltage, over-current, short circuits, and temperature monitoring. LED status indicators provide at-a-glance system health.
Parallel Communication & Self-Heating: LINK IN/OUT COM ports and eDock interface enable multi-battery coordination. Integrated heaters maintain optimal temperature for cold-weather charging, while pressure vents ensure safe internal operation.
Lightweight & Easy to Install: Smaller, lighter, and more convenient than traditional lead-acid batteries, making installation, movement, and system integration simpler.
App Monitoring: Track battery level, voltage, temperature, and State of Charge easily via the BLUETTI app with Bluetooth connectivity.
Flexible Power Applications: Ideal for home ESS paired with inverters/chargers, RV house systems, off-grid cabins, boats, trolling motors, and weekend adventures.

Why Choose the BLUETTI B4810?

Cold-Weather Ready: Self-heating ensures reliable charging even in freezing temperatures.
Long-Lasting & Efficient: LiFePO₄ chemistry delivers high cycle life and stable performance over thousands of cycles.
Scalable Energy Storage: Modular design allows custom configurations from a single battery to large multi-unit setups.
Safe & Durable: Advanced BMS, rugged IP65 construction, and thermal management provide peace of mind in any scenario.
Fast Recharge & Smart Monitoring: Charges quicker than lead-acid batteries, with app-based tracking for convenience.

Applications:

Home Energy Storage & Backup Power
RV & Van Life House Power
Marine & Non-Propulsion Systems
Off-Grid Cabins & Outdoor Living
Mobile Worksites & Weekend Adventures

What’s Included:

1 × BLUETTI B4810 48V LiFePO₄ Battery
1 x Ethernet Cable
2 x M8x20 Bolt (for locking cables)
8 x M5x10 Bolt
12 x M8x20 Bolt
2 x M8x30 Bolt
2 x M8x1.4 Flat Washer
2 x M8 Spring Washer
2 x M12x12 Headless Bolt
2 x M8 Nut
4 x Mounting Bracket
8 x ST8 Wood Screw
1 x User Manual & Warranty Documentation

Specifications

Category	Specification
Battery Info
Model	B4810
Battery Capacity	5,120 Wh (51.2 V, 100 Ah)
Battery Type	LiFePO₄ (Lithium Iron Phosphate)
Cycle Life	6,000 cycles @ 70% capacity
Charging & Discharging
Charge Current	50 A Recommended, 100 A Max
Discharge Current	100 A Max
Peak Discharge Current	200 A @ 30 s
Cell Temperature Protection	Charging: < −1 °C or > 61 °C (<30 °F or >142 °F) Discharging: < −21 °C or > 61 °C (<−5.8 °F or >142 °F)
General
Weight	≈101.4 lbs / 46 kg
IP Rating	IP65
Operating Temperature	Charging & Discharging: −20 °C to 55 °C (−4 °F to 131 °F)
Storage Temperature	Up to 1 month: −20 °C to 40 °C (−4 °F to 104 °F) Up to 6 months: −20 °C to 25 °C (−4 °F to 77 °F)
Dimensions (L × W × H)	23.94 × 14.96 × 5.71 in (608 × 380 × 145 mm)
Max. Expansion (Parallel & Series)	122.88 kWh (24P), 51.2 V, 2,400 Ah
Certifications	MSDS, UN38.3, FCC, CE, RoHS, UL
Warranty	5 Years

Shopping Guide

Power Storage & Inverter

Item / Appliance	Typical Power (W)	Usage Time (hrs)	Total Energy Needed (Wh)	Battery Size Needed (Ah) (12V System)	Inverter Size Needed (W)
LED Light Bulb (10W)	10W	5 hrs	50 Wh	4.2 Ah	100W
Phone Charging	5–10W	2 hrs	10–20 Wh	0.8–1.7 Ah	100W
Laptop Charging	50–100W	3 hrs	150–300 Wh	12.5–25 Ah	200W
Ceiling Fan	75W	6 hrs	450 Wh	37.5 Ah	150W
LED TV (32")	60W	4 hrs	240 Wh	20 Ah	150–200W
Refrigerator (Mini)	100W (avg)	8 hrs	800 Wh	66.6 Ah	300–500W
Water Pump (1HP)	750W	1 hr	750 Wh	62.5 Ah	1000W
Microwave Oven	1000W	0.5 hr	500 Wh	41.6 Ah	1200–1500W
Electric Kettle	1500W	0.3 hr	450 Wh	37.5 Ah	2000W

Key Formulas

Purpose	Formula	Example
Energy Consumption (Wh)	`Watts × Hours`	60W × 4 hrs = 240 Wh
Battery Capacity (Ah)	`Watt-hours ÷ System Voltage (V)`	240 Wh ÷ 12V = 20 Ah
Inverter Size (W)	`Total Watts × 1.25 (for safety margin)`	300W × 1.25 = 375W → Use 400W inverter
Total Load Power (W)	`Sum of all appliance watts to be used at once`	Light (10W) + Fan (75W) = 85W
Runtime (hrs) of Battery	`(Battery Ah × Voltage) ÷ Total Load (W)`	(100Ah × 12V) ÷ 240W = 5 hrs

How To Choose The Right Products

Need / Application	Recommended Battery	Inverter Size	Notes
Basic lighting + phone charging	50Ah – 100Ah (12V)	100W–200W	For small backup setups
Home office (laptop, fan, TV)	150Ah – 200Ah (12V or 24V)	500W – 1000W	For moderate usage with 4–6 hours of backup
Home backup (fridge, lights)	200Ah+ (24V or 48V recommended)	1000W – 1500W	Ideal for longer backups or heavier loads
Business / shop power backup	300Ah+ (48V system)	2000W – 3000W	Suitable for commercial setups or extended power outages

Why Shop With Us

Why Shop With Ecogrid Supply?

Authorized & Trusted Dealer: We’re fully authorized for every brand we carry, so you get genuine products with full manufacturer warranties.
Fast, Reliable Shipping: All items ship from our U.S. warehouses with quick and dependable freight options to keep your project on track.
30-Day Hassle-Free Returns: Change your mind? No worries — enjoy a simple 30-day return process for peace of mind.
Real Human Support, 7 Days a Week: Reach us by phone, email, or live chat — no bots, no overseas call centers, just real people who know off-grid power systems.
Expert Energy Guidance: Our solar and backup energy specialists are ready to help you with design, planning, product questions, and installation tips.
USA-Based Service: Our team proudly operates here in the United States, providing local, knowledgeable, and friendly support.
Secure Payments: Shop confidently with our encrypted, secure checkout to protect your personal and payment information.
Built for Energy Independence: Whether you’re powering a cabin, prepping for emergencies, or going off-grid, our products are selected for performance, reliability, and sustainable operation.