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BLUETTI EP900 + 2 x B500 – Home Battery Backup System
Reliable, Modular Power for Your Home
The BLUETTI EP900 paired with the 2 x B500 expansion battery delivers a scalable energy storage solution designed to provide clean, reliable, and cost-effective power for your home. Perfect for reducing electricity costs, ensuring backup during outages, and maximizing energy efficiency, this system lets you store solar power for on-demand use and even sell excess energy back to the grid.
Key Features:
Energy Independence at Your Fingertips: Harness and store solar energy or utility power to run essential appliances whenever needed. Avoid high electricity bills, prepare for outages, and gain the freedom of on-demand energy for your household.
High-Capacity & Powerful Output: The EP900 provides 10–20kWh of capacity per unit and a 9,000W inverter capable of powering both 120V and 240V devices. Pair two units for up to 18kW output—enough to run your entire home seamlessly.
100% Modular & Expandable: The modular design lets you expand capacity as your energy needs grow. Connect multiple B500 batteries to achieve up to 19.8kWh per EP900 (39.6kWh with two units) for a fully customized energy solution.
Heavy-Duty Performance: With high-wattage inverter output, the EP900 can handle demanding appliances such as power tools, air conditioners, and home workshops without compromise.
Safe, Reliable & Long-Lasting: Equipped with advanced LiFePO4 batteries and a state-of-the-art Battery Management System (BMS), the EP900 + B500 ensures optimal safety, longevity, and consistent performance. Backed by a 10-year warranty and optional certified installation, it offers peace of mind for years to come.
Why Choose BLUETTI EP900 + 2x B500?
Flexible Home Energy: Adaptable for both daily use and emergency backup.
Expandable & Scalable: Increase storage as your household energy needs grow.
High-Power Output: Perfect for running multiple high-demand appliances simultaneously.
PV system installed on battery side; no residual current detection
BLUETTI B500 Battery Pack
Specification
Details
Battery Type
Lithium Iron Phosphate (LiFePO₄)
Rated Capacity
4,960Wh
Usable Capacity
4,464Wh
Depth of Discharge (DoD)
90%
Protection Grade
IP65
Noise Level
< 25 dB
Operating Temperature – Charging
32°F–104°F (0°C–40°C)
Operating Temperature – Grid-Connected
-4°F–104°F (-20°C–40°C)
Operating Temperature – Discharging
-4°F–104°F (-20°C–40°C)
Storage Temperature
-4°F–104°F (-20°C–40°C), ≥1 charge/month32°F–95°F (0°C–35°C), ≥1 charge every 6 months
Working Humidity
5%–95%
Working Altitude
< 2,000 m
Short-Circuit Protection
Yes
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.