Special Offers
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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
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Vendor: SunGold Power
SunGold Power 48V 100Ah Server Rack LiFePO₄ Lithium Battery – 5.12kWh
The SunGold Power SG48100P 48V 100Ah Server Rack Battery is a reliable 5.12kWh LiFePO₄ storage module designed for residential, small commercial, and industrial energy storage systems. Its modular rack-mount design allows easy installation and parallel expansion...Regular price $1,150.00Regular price $1,150.00 -
Vendor: SunGold Power
SunGold Power 48V 100Ah Server Rack Lithium Battery with Self-Heating – 5.12kWh
The SunGold Power SGH48100T 48V 100Ah Server Rack Lithium Battery is a compact, high-performance 5.12kWh LiFePO₄ storage module built for residential, commercial, and industrial energy storage systems. Designed with an automatic self-heating function, it ensures reliable...Sale price $1,150.00Regular price $1,350.00Sale price $1,150.00Regular price $1,350.00 -
Vendor: SunGold Power
SunGold Power 5.12kWh Powerwall LiFePO₄ Lithium Battery – 51.2V 100Ah
The SunGold Power 5.12kWh Powerwall LiFePO₄ Battery (SG48100M) is a compact, high-performance residential energy storage solution. With 51.2V 100Ah capacity (5.12kWh), it’s designed for solar storage, home backup, and commercial ESS applications. Built with LiFePO₄ chemistry...Sale price $1,190.00Regular price $1,290.00Sale price $1,190.00Regular price $1,290.00 -
Vendor: SunGold Power
SunGold Power Powerwall X 51.2V 200Ah Lithium Battery – Wall-Mounted Home Energy Storage
The SunGold Power Powerwall X 51.2V 200Ah Lithium Battery is a reliable wall-mounted home energy storage solution. With 10.24kWh of usable capacity, it stores excess solar energy during the day and provides continuous power during the...Sale price $2,150.00Regular price $2,399.00Sale price $2,150.00Regular price $2,399.00 -
Vendor: Dakota Lithium
Dakota Lithium DL+ 12V 640Ah LiFePO4 Dual Purpose Battery With CAN Bus
The Dakota Lithium DL+ 12V 640Ah LiFePO4 Dual Purpose Battery is the most powerful and compact energy solution Dakota Lithium has ever built. With an incredible 640Ah of capacity and nearly 7.7kWh of usable energy, this...Regular price $4,830.00Regular price $4,830.00 -
Vendor: Dakota Lithium
Dakota Lithium 48V 100Ah LiFePO4 Deep Cycle Battery Set
Upgrade to reliable, long-lasting power with the Dakota Lithium 48V 100Ah LiFePO4 Deep Cycle Battery Set. Built for high-demand 48V applications, this package includes four DL 100Ah batteries wired in series to deliver consistent energy for...Regular price $3,236.00Regular price $3,236.00
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.