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: Dakota Lithium
Dakota Lithium 72V 55Ah Deep Cycle LiFePO4 Single Battery
The Dakota Lithium 72V 55Ah Deep Cycle Battery is a lightweight, high-performance power solution designed for 72V golf carts, electric vehicles, and outboard motors. Built with advanced Lithium Iron Phosphate (LiFePO4) technology, it delivers 3X the...Regular price From $2,160.00Regular price From $2,160.00 -
Vendor: Dakota Lithium
Dakota Lithium PS2400 Portable Power Station
The Dakota Lithium PS2400 Portable Power Station delivers reliable backup power for home, travel, and work. Built with a 2060Wh LiFePO4 battery and a 2400W pure sine wave inverter (4800W peak), this all-in-one unit powers multiple...Regular price From $2,399.00Regular price From $2,399.00 -
Vendor: Dakota Lithium
Dakota Lithium 48V 135Ah Dual Purpose Golf Cart Battery Set – 4 x 12V DL+ LiFePO4 Batteries
Upgrade your golf cart with the Dakota Lithium 48V Golf Cart Battery Set, featuring four DL+ 12V deep cycle and starting batteries wired in series. Designed with advanced LiFePO4 technology, this set delivers twice the run...Regular price From $3,996.00Regular price From $3,996.00 -
Vendor: Dakota Lithium
Dakota Lithium DL+ 12V 135Ah 1000CCA Dual-Purpose LiFePO4 Battery
The Dakota Lithium DL+ 12V 135Ah Dual-Purpose Battery delivers unmatched power, reliability, and versatility in a lightweight design. Built with advanced LiFePO4 technology, it combines 135 Amp Hours of deep cycle capacity with 1,000 Cold Cranking...Regular price From $1,220.00Regular price From $1,220.00 -
Vendor: Rich Solar
Rich Solar ALPHA 3 LITE | 12V 300Ah LiFePO4 Lithium Battery | 4,000+ Cycles | Off-Grid, RV, Marine, Cabin Power
 Power your off-grid lifestyle with the Rich Solar ALPHA 3 LITE 12V 300Ah LiFePO4 Lithium Battery — engineered for unmatched durability, reliability, and performance. Designed with cutting-edge battery management technology, the ALPHA 3 LITE delivers 4,000+...Regular price $1,199.99Regular price $1,199.99 -
Vendor: Rich Solar
Rich Solar ALPHA 3 | 12V 300Ah LiFePO4 Lithium Battery with Bluetooth & Heating | 5,000+ Cycles for RV, Off-Grid & Solar
Power Your Adventures with the Rich Solar ALPHA 3 The Rich Solar ALPHA 3 12V 300Ah LiFePO4 Lithium Battery is built for serious off-grid living, RV travel, and renewable energy systems. Engineered with 5,000+ deep charge...Regular price $1,499.99Regular price $1,499.99
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.