Boost your backup power with the BLUETTI B210P Expansion Battery—a rugged, high-capacity energy solution built for outdoor adventures, RV life, and emergency preparedness. Compatible with the AC200L and AC240P power stations, this 2,150Wh battery not only expands your existing system, but also functions as a standalone power source with multiple ports.
Whether you're camping off-grid or riding out a blackout, the IP65-rated, weather-resistant build and long-lasting LiFePO₄ battery cells (3,000+ cycles) ensure reliable power when and where you need it.
Key Features:
IP65 Water & Dust Resistance: Built tough to withstand rain, dirt, and rugged conditions—perfect for outdoor and mobile setups.
2,150Wh LiFePO₄ Battery (10+ Year Lifespan): High-capacity battery with industry-leading safety, efficiency, and longevity—delivers over 3,000 cycles to 80%.
Standalone Power Source:Charge smartphones, mini-fridges, and more directly from built-in USB-A, USB-C, and 12V car port outputs.
Seamlessly Expands AC200L & AC240P Power Stations:Connects easily to your BLUETTI power station (extra cable required) to dramatically extend energy storage.
What’s Included:
1 × Bluetti B210P Expansion Battery
1 × Battery Expansion Cable
1 × Solar Charging Cable
1 × User Manual
1 × Warranty Card
Specifications
Battery Information
Capacity
2,150Wh
IP Rating
IP65
Type
LiFePO4 (Lithium Iron Phosphate)
Life Cycles
3000+
Shelf-life
Recharge to 80% Every 3-6 Months
Management System
MPPT Controller, BMS, etc.
Output Specifications
USB-A
1 x 18W Max.
USB-C
1x 100W Max.
Cigarette Lighter Port
1 x 12V/10A
Input Specifications
AC Charging
4.7 Hours with 470W Max. (T500 AC adapter required)
Solar Charging
4.5 Hours with 500W Max.
12V/24V Car Outlet(100W/200W)
12V 20 Hours24V 7.3 Hours
General Specifications
Pass-Through Charging
Yes
Noise Level
40dB
Weight
27.9kg / 61.5lbs
Dimensions (L × W × D)
416.6 × 282.4 × 269.5mm/16.4 × 11.1 × 10.6in
Warranty
6 Years
Certifications
UL2743, UKCA, TELEC, RCM, FCC ID, CE, PSE, NTC
Operating Temperature
-4℉-104℉ (-20℃-40℃)
Storage Temperature
14℉-113℉ (-10℃-45℃)
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.