Special Offers
-
Vendor: AquaCal
AquaCal TropiCal T100 Inverter Pool Heat Pump – 108,000 BTU (Heat & Cool) | Includes 2 Year Labor, 7 Year Parts & Lifetime Titanium Warranty
Regular price $4,148.00 -
Vendor: AquaCal
AquaCal HeatWave SuperQuiet SQ160R – 128k BTU Pool Heat Pump (Heat & Cool) | Includes 2 Year Labor & 7 Year Parts Warranty
Regular price $5,081.00 -
Vendor: AquaCal
AquaCal TropiCal T135R Pool Heat Pump – 123,000 BTU (Heat & Cool) | Includes 2 Year Labor, 7 Year Parts & Lifetime Titanium Warranty
Regular price From $5,426.00 -
Vendor: AquaCal
AquaCal TropiCal T90 Pool Heat Pump – 90,000 BTU (Heat Only) | Includes 2 Year Labor, 7 Year Parts & Lifetime Titanium Warranty
Regular price From $4,148.00
-
Vendor: EG4
EG4 LL 12V 400Ah LiFePO4 Server Rack Battery - 5.12kWh, 200A BMS, LCD Display
The EG4 LL 12V 400Ah LiFePO4 Server Rack Battery delivers exceptional reliability and efficiency for energy storage systems, RVs, marine applications, and off-grid setups. Known as the "Lifetime Lithium" series, this model offers 5.12kWh of usable...Regular price $1,599.00Regular price $1,599.00 -
Vendor: EG4
EG4 WallMount Indoor 48V 100Ah LiFePO4 Battery - 5.12kWh, Compact Wall-Mount Design
Product Description: The EG4 WallMount Indoor 48V 100Ah LiFePO4 Battery offers a compact, efficient energy storage solution for homes, businesses, and off-grid applications. With a total capacity of 5.12kWh and a 100A maximum continuous charge/discharge rate,...Regular price $1,649.95Regular price $1,649.95 -
Vendor: EG4
EG4 LifePower4 24V 200Ah LiFePO4 Server Rack Battery - 5.12kWh, 99% Efficiency
The EG4 LifePower4 24V 200Ah LiFePO4 Server Rack Battery delivers reliable, long-lasting energy storage with exceptional efficiency and safety. Designed for residential, commercial, and off-grid systems, this unit combines high-grade lithium iron phosphate chemistry with advanced...Sale price $1,400.00Regular price $1,449.00Sale price $1,400.00Regular price $1,449.00 -
Vendor: EG4
EG4 PowerPro WallMount AllWeather 48V 280Ah 14.3kWh LiFePO4 Battery - Outdoor Rated, UL1973 & UL9540A
The EG4 PowerPro WallMount AllWeather 48V 280Ah 14.3kWh LiFePO4 Battery delivers reliable and scalable energy storage for both residential and commercial systems. Designed for outdoor durability, this all-weather lithium battery features an IP65-rated enclosure and a...Sale price $3,999.00Regular price $4,823.47Sale price $3,999.00Regular price $4,823.47 -
Vendor: EG4
EG4 WallMount Indoor 48V 280Ah 14.3kWh LiFePO4 Battery - 200A BMS, LCD Touchscreen
The EG4 WallMount Indoor 48V 280Ah 14.3kWh LiFePO4 Battery delivers dependable, high-capacity energy storage for residential and commercial applications. Built with lithium iron phosphate chemistry, it offers long-term reliability, safety, and compatibility with leading inverter systems....Sale price $3,299.00Regular price $4,352.88Sale price $3,299.00Regular price $4,352.88 -
Vendor: Bluetti
BLUETTI B80P Expansion Battery – 806Wh, LiFePO4, IP65 Rated
The BLUETTI B80P Expansion Battery is designed to increase the storage capacity of your BLUETTI power stations while also functioning as a standalone power source. With 806Wh of safe and long-lasting LiFePO4 battery cells, IP65 water...Regular price $499.00Regular price $499.00
Lithium Iron Phosphate (LiFePO4) Batteries for Solar, RV and Backup
LiFePO4 batteries deliver 3,000–6,000 charge cycles, use 100% of their rated capacity and weigh about half as much as lead-acid—which is why they have become the standard for off-grid solar, RVs, boats and home battery backup. Blue Sky Yard carries deep-cycle lithium batteries from Dakota Lithium, Rich Solar, EG4 and SunGold Power in 12V, 24V and 48V, including server-rack batteries that stack into 30 kWh+ banks.
Match the battery to the system
- 12V 100–300Ah – RVs, vans, trolling motors, small cabins.
- 24V – Mid-size cabins and workshops running 24V inverters.
- 48V rack & wall batteries (5–15 kWh each) – Whole-home solar with EG4, SunGold and similar 48V inverters; closed-loop communication keeps charging accurate.
Check the battery's continuous discharge rating against your inverter, and confirm low-temperature charging protection if the battery lives in an unheated space. Need help building a bank? Call (888) 835-6051.