The BigBattery 24V 4x HUSKY 2 Kit delivers a powerful 20.48kWh LiFePO₄ solution, engineered for exceptional reliability and efficiency in RVs, camper vans, and commercial vehicle applications.
As BigBattery’s most energy-dense 24V option, the HUSKY 2 combines Tier 1 LFP cells with broad operating parameters and a wide temperature range to provide durable, versatile lithium power storage. This kit features advanced safety and performance-enhancing technologies including an IP65-rated rugged casing, an advanced BMS with auto cell balancing, and a self-heating function that guarantees dependable power in all weather conditions.
Key Features:
Battery Capacity:20.48kWh (4 × 5.12kWh modules)
Voltage: 24V, designed for 48V system compatibility
Chemistry: LiFePO₄ (Lithium Iron Phosphate)
Communication:Full CANBus & RS485 protocols for comprehensive system monitoring
Monitoring: 350A external battery capacity meter included
Charger:IP65-rated 24V 30A charger (28.8V DC) with ring terminals
BMS:Advanced battery management system with auto cell balancing and self-heating
Enclosure:Durable, vibration-resistant, and weatherproof (IP65)
Designed For 24V Applications:
Lead acid replacement
Intense heat & cold environments
Class A, B, & C RVs
Camper vans & commercial vehicles
Food trucks & emergency backup systems
Compact storage spaces
Vibration resistant environments
Benefits:
High-capacity lithium power for extended run times and heavy-duty use
Reliable performance in extreme temperatures thanks to self-heating function
Plug-and-play design with included cables and components for fast installation
Real-time battery status monitoring with external capacity meter
Maintenance-free, rugged, and long-lasting lithium battery technology
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.
Buying 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