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Solar Lithium Batteries

The battery is the most expensive and longest-lived component in an energy storage system, and it is the one worth over-specifying. Every battery in this category is lithium iron phosphate — LiFePO4 — which is the chemistry that dominates stationary storage because it tolerates thousands of cycles and does not carry the thermal runaway risk of NMC.

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LG - 16H Prime Battery - 16kWh - 400V - High Voltage - Front, angled right view LG 16H Prime Battery
LG - 16H Prime Battery - 16kWh - 400V - High Voltage - Front, angled left view LG 16H Prime Battery
$7,500.00
$7,500.00 - $7,500.00
$7,500.00
$2,150.00
$2,150.00 - $2,150.00
$2,150.00

LG - 16H Prime Battery - 16kWh - 400V - High Voltage

LG

The LG RESU16H Prime is a 16kWh high-voltage battery built on a 400V architecture — a different design philosophy from the 48V systems that dominat...

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$7,500.00
$7,500.00 - $7,500.00
$7,500.00
$2,150.00
$2,150.00 - $2,150.00
$2,150.00
Canadian Solar - EP Cube Battery Module - Angled view Canadian Solar EP Cube Battery Module, showing easy stacking connection points
Canadian Solar - EP Cube Battery Module - Front view of Canadian Solar EP Cube Battery Module, showing easy stacking connection points
$1,149.99 - $1,149.99
$1,149.99
$1,149.99 - $1,149.99
$1,149.99

Canadian Solar - EP Cube Battery Module

Canadian Solar

The Canadian Solar - EP Cube Battery Module is a lithium battery from Canadian Solar — 9.9kWh; 19.9kWh.Why It MattersDepth of discharge is where na...

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$1,149.99 - $1,149.99
$1,149.99
$1,149.99 - $1,149.99
$1,149.99
EG4 LifePower4 V2 Lithium Battery | 48V 100AH | Server Rack Battery
EG4 LifePower4 V2 Lithium Battery | 48V 100AH | Server Rack Battery Sold out
$1,470.99 - $1,470.99
$1,470.99
$1,470.99 - $1,470.99
$1,470.99

EG4 LifePower4 V2 Lithium Battery | 48V 100AH | Server Rack Battery

EG4 Electronics
Out of stock

The EG4 LifePower4 V2 Lithium Battery | 48V 100AH | Server Rack Battery is a solar battery from EG4 Electronics, stocked by Urban Supply for solar ...

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$1,470.99 - $1,470.99
$1,470.99
$1,470.99 - $1,470.99
$1,470.99
Sold out
Green Vista Living ECO-WORTHY 20.48KWh/30.72KWh Home Backup Power With 48V 100Ah LiFePO4 And... Bathroom Vanity - Side View
Green Vista Living ECO-WORTHY 20.48KWh/30.72KWh Home Backup Power With 48V 100Ah LiFePO4 And 10000W 48V... Bathroom Vanity
$5,199.99 - $8,499.99
$5,199.99 - $8,499.99
$5,199.99
$4,819.99 - $7,799.99
$4,819.99 - $7,799.99
$4,819.99

ECO-WORTHY 20.48KWh/30.72KWh Home Backup Power With 48V 100Ah LiFePO4 And 10000W 48V Off-Grid Inverter

ECO-WORTHY
In stock

Eco-Worthy 20.48kWh / 30.72kWh Home Backup Power System | 48V 100Ah LiFePO₄ Batteries + 10kW Off-Grid Inverter The Eco-Worthy Home Backup Power Sys...

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$5,199.99 - $8,499.99
$5,199.99 - $8,499.99
$5,199.99
$4,819.99 - $7,799.99
$4,819.99 - $7,799.99
$4,819.99
Briggs & Stratton SimpliPHI 6.6 Battery Controller - Front view of the SimpliPHI 6.6 kWh battery showing a smooth rectangular face with four small indicator slots centered near the top and a single circular port below them.
Briggs & Stratton SimpliPHI 6.6 Battery Controller - Front view of the SimpliPHI 6.6 battery showing a smooth gray face with centered status indicators and a single lower connection port.
$686.99 - $686.99
$686.99
$686.99 - $686.99
$686.99

Briggs & Stratton SimpliPHI 6.6 Battery Controller

Briggs & Stratton

The Briggs & Stratton SimpliPHI 6.6 Battery Controller is a lithium battery from Briggs & Stratton — Required Up to 3; Batteries per Contro...

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$686.99 - $686.99
$686.99
$686.99 - $686.99
$686.99
OutBack Power - EnergyCell 5 Battery - 48V 100AH - Outback Power EnergyCell 5 stack in a gray enclosure with side-mounted breaker
OutBack Power - EnergyCell 5 Battery - 48V 100AH - Outback Power EnergyCell 5 lithium battery in a gray enclosure with side-mounted breaker
Sold out
$1,300.00
$1,300.00 - $1,300.00
$1,300.00
$1,100.00
$1,100.00 - $1,100.00
$1,100.00

OutBack Power - EnergyCell 5 Battery - 48V 100AH

OutBack
Out of stock

The OutBack Power - EnergyCell 5 Battery - 48V 100AH is a lithium battery from OutBack — Battery Chemistry LiFePO4; Nominal Voltage 51.2V.Why It Ma...

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$1,300.00
$1,300.00 - $1,300.00
$1,300.00
$1,100.00
$1,100.00 - $1,100.00
$1,100.00
Sold out
LG enblock S - Battery Control Unit - Battery Control Unit Tilted to the left.
LG enblock S - Battery Control Unit - Battery Control Unit Front facing
$1,129.00 - $1,129.00
$1,129.00
$1,129.00 - $1,129.00
$1,129.00

LG enblock S - Battery Control Unit

LG

The LG enblock S - Battery Control Unit is a lithium battery from LG — Installation Wall-mounted or floor-standing; Rating Indoor/Outdoor.Why It Ma...

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$1,129.00 - $1,129.00
$1,129.00
$1,129.00 - $1,129.00
$1,129.00
LG enblock S - Battery Module - Side facing of LG enblock S Batttery Module
LG enblock S - Battery Module - Front facing of LG enblock S Batttery Module
$786.00 - $786.00
$786.00
$786.00 - $786.00
$786.00

LG enblock S - Battery Module

LG

The LG enblock S - Battery Module is a lithium battery from LG — Installation Location Indoor; Outdoor Communication Interface RS485.Why It Matters...

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$786.00 - $786.00
$786.00
$786.00 - $786.00
$786.00
Enphase IQ Battery 5P Lifting Handles - IQ5P handles facing forward
$350.00
$350.00 - $350.00
$350.00
$230.00
$230.00 - $230.00
$230.00

Enphase IQ Battery 5P Lifting Handles

Enphase Energy

The Enphase IQ Battery 5P Lifting Handles is a lithium battery from Enphase Energy, stocked by Urban Supply for solar and storage builds.Why It Mat...

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$350.00
$350.00 - $350.00
$350.00
$230.00
$230.00 - $230.00
$230.00
BigBattery - 48V HUSKY 2 INV Lithium Battery - Front view of the BigBattery 48V HUSKY 2 LiFePO4 battery with included accessories, including terminal cables, mounting brackets, screws, and protective caps.
BigBattery - 48V HUSKY 2 INV Lithium Battery - Angled view of the BigBattery 48V HUSKY 2 LiFePO4 battery, featuring a black enclosure with integrated handles, connection ports, and labeled specifications.
$1,706.99 - $1,706.99
$1,706.99
$1,706.99 - $1,706.99
$1,706.99

BigBattery - 48V HUSKY 2 INV Lithium Battery

BigBattery

The HUSKY 2 INV is BigBattery's inverter-ready variant — the same 5.12kWh LiFePO4 chemistry as the standard HUSKY 2, configured for stationary sola...

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$1,706.99 - $1,706.99
$1,706.99
$1,706.99 - $1,706.99
$1,706.99
BigBattery - 48V HUSKY 2 - LiFePO4 Lithium Battery 5.12kWh - For RVs, Camper Vans & Commercial Vehicles - Top side view of BigBattery 48V HUSKY 2 with terminals and side handle shown
BigBattery - 48V HUSKY 2 - LiFePO4 Lithium Battery 5.12kWh - For RVs, Camper Vans & Commercial Vehicles - Front of BigBattery 48V HUSKY 2 with label displayed
$1,850.00 - $1,850.00
$1,850.00
$1,850.00 - $1,850.00
$1,850.00

BigBattery - 48V HUSKY 2 - LiFePO4 Lithium Battery 5.12kWh - For RVs, Camper Vans & Commercial Vehicles

BigBattery

The BigBattery 48V HUSKY 2 is a 5.12kWh / 100Ah LiFePO4 pack built for vehicles rather than wall mounts — golf carts, LSVs, UTVs, Class A/B/C RVs, ...

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$1,850.00 - $1,850.00
$1,850.00
$1,850.00 - $1,850.00
$1,850.00
BigBattery - 48V EAGLE 2 - LiFePO4 Lithium Battery 1.63kWh - For Golf Carts, Utility Vehicles, RVs & Camper Vans - Top view of BigBattery 48V EAGLE 2
BigBattery - 48V EAGLE 2 - LiFePO4 Lithium Battery 1.63kWh - For Golf Carts, Utility Vehicles, RVs & Camper Vans - Front view of BigBattery 48V EAGLE 2
Sold out
$740.00 - $740.00
$740.00
$740.00 - $740.00
$740.00

BigBattery - 48V EAGLE 2 - LiFePO4 Lithium Battery 1.63kWh - For Golf Carts, Utility Vehicles, RVs & Camper Vans

BigBattery
Out of stock

The BigBattery - 48V EAGLE 2 - LiFePO4 Lithium Battery 1.63kWh - For Golf Carts, Utility Vehicles, RVs & Camper Vans is a lithium battery from ...

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$740.00 - $740.00
$740.00
$740.00 - $740.00
$740.00
Sold out
BigBattery - 24V HUSKY 2 - LiFePO4 Lithium Battery 5.12kWh - For RVs, Camper Vans & Commercial Vehicles - Rear view of BigBattery 24V HUSKY 2 depicted with top removed and internal parts showing
BigBattery - 24V HUSKY 2 - LiFePO4 Lithium Battery 5.12kWh - For RVs, Camper Vans & Commercial Vehicles - Angled view of BigBattery 24V HUSKY 2 showing terminals on top of battery
Sold out
$1,450.00 - $1,450.00
$1,450.00
$1,450.00 - $1,450.00
$1,450.00

BigBattery - 24V HUSKY 2 - LiFePO4 Lithium Battery 5.12kWh - For RVs, Camper Vans & Commercial Vehicles

BigBattery
Out of stock

The BigBattery - 24V HUSKY 2 - LiFePO4 Lithium Battery 5.12kWh - For RVs, Camper Vans & Commercial Vehicles is a lithium battery from BigBatter...

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$1,450.00 - $1,450.00
$1,450.00
$1,450.00 - $1,450.00
$1,450.00
Sold out
BigBattery - 24V EAGLE 2 - LiFePO4 Lithium Battery 1.63kWh - For Boats & Motorcycles - Top view of BigBattery 24V EAGLE 2
BigBattery - 24V EAGLE 2 - LiFePO4 Lithium Battery 1.63kWh - For Boats & Motorcycles - Front view of BigBattery 24V EAGLE 2 with carrying strap
$650.00 - $650.00
$650.00
$650.00 - $650.00
$650.00

BigBattery - 24V EAGLE 2 - LiFePO4 Lithium Battery 1.63kWh - For Boats & Motorcycles

BigBattery

The BigBattery - 24V EAGLE 2 - LiFePO4 Lithium Battery 1.63kWh - For Boats & Motorcycles is a lithium battery from BigBattery — Voltage 24V; En...

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$650.00 - $650.00
$650.00
$650.00 - $650.00
$650.00
BigBattery - HUSKY 2 - 12V - 400Ah - 5.12kWh - LiFePO4 Battery - BigBattery 12V Husky 2 Battery included components
BigBattery - HUSKY 2 - 12V - 400Ah - 5.12kWh - LiFePO4 Battery - BigBattery 12V Husky 2 Battery Angled View
$1,790.00 - $1,790.00
$1,790.00
$1,790.00 - $1,790.00
$1,790.00

BigBattery - HUSKY 2 - 12V - 400Ah - 5.12kWh - LiFePO4 Battery

BigBattery

The BigBattery - HUSKY 2 - 12V - 400Ah - 5.12kWh - LiFePO4 Battery is a lithium battery from BigBattery — Voltage 12V; Capacity 400Ah.Why It Matter...

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$1,790.00 - $1,790.00
$1,790.00
$1,790.00 - $1,790.00
$1,790.00
Anker - SOLIX BP3000 Expansion Battery 3072Wh LFP - For SOLIX F3000 - Two stacked Anker SOLIX BP1000 battery modules for scalable power capacity
Anker - SOLIX BP3000 Expansion Battery 3072Wh LFP - For SOLIX F3000 - Anker SOLIX BP3000 expansion battery module for portable power stations
$1,399.00 - $1,399.00
$1,399.00
$1,399.00 - $1,399.00
$1,399.00

Anker - SOLIX BP3000 Expansion Battery 3072Wh LFP - For SOLIX F3000

Anker

The Anker - SOLIX BP3000 Expansion Battery 3072Wh LFP - For SOLIX F3000 is a lithium battery from Anker — Capacity 3072Wh per unit; Max Expansion U...

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$1,399.00 - $1,399.00
$1,399.00
$1,399.00 - $1,399.00
$1,399.00

How to Choose

Decide capacity from daily energy use, not from what looks affordable. Work out the kilowatt-hours you need to carry from sundown to sunrise, add margin for a cloudy day, then round up — every buyer we talk to a year later wishes they had bought more capacity, and adding modules later means mixing pack ages. Then check closed-loop communication with your inverter: a CAN or RS485 link that reports true state of charge is what separates a system that manages itself from one you babysit with a voltmeter.

Key Specifications Explained

  • Chemistry: LiFePO4 — typically 6,000+ cycles at 80% depth of discharge
  • Module size: Roughly 5kWh per server-rack module at 48V/100Ah
  • Bank sizes: 10kWh to 30kWh typical for residential backup and off-grid
  • Communication: CAN or RS485 closed-loop with the inverter BMS
  • Installation: Indoor rack, or an outdoor-rated enclosure — bare modules are not weatherproof

Brands We Carry

BigBattery, Pytes, EG4 Electronics, LG, Victron Energy, Wiren, OutBack Power, Enphase Energy and Canadian Solar.

Frequently Asked Questions

How many kWh do I need?

For essential loads overnight, 10-15kWh. For whole-home resilience or full off-grid, 20-30kWh. Size on your critical loads, not total household consumption.

Can I mix brands in one bank?

No. Different BMS logic and cell batches charge unevenly. Keep one brand, and ideally one purchase batch, per bank.

Do these work outdoors?

Only in an outdoor-rated enclosure such as the Pytes V-BOX. Cold also reduces charge acceptance — most LiFePO4 will not charge below freezing without heating.

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