Batteries

Energy When You Need It

Understanding Battery Technology

Few people can grasp just how many new battery companies and battery chemistries are vying to take us to the next level of energy storage! Solar Plus has installed all types of batteries from the most affordable lead-acid batteries to high-end lithium iron phosphate batteries.

How does your battery chemistry affect the cost and longevity of your battery? The electric car industry has brought about a boom and economy of scale for the production of lithium-ion batteries. Lithium-ion and lithium iron phosphate are now the norm for Solar Plus storage microgrid.

Early solar installations almost always used flooded lead-acid or sealed lead-acid batteries like those found in your car. These batteries, while inexpensive, seldom lasted more than five years. The “memory” on a lead-acid battery limited its use to 50% of its capacity and to stretch the battery life most off-grid users would try to use only the top 20% of capacity. So although the lead-acid battery is affordable, it needs to be replaced often.

Evolution from Lithium Ion to Lithium Iron

The shift from Lithium Ion to Lithium Iron batteries has begun as battery technology moves towards batteries that do not require rare minerals.

Lithium Ion

Higher Energy Density

Needs Active Cooling

No Recycling

Cobalt Toxicity

Flammable

Lithium Iron

Last Longer

Does Not Need Cooling

More Recyclable

Iron Replaces Cobalt

Non-Flammable

Batteries for Commercial Projects

Sol-Ark

High-Capacity & High Voltage

Outdoor & Indoor Batteries

Up to 6 battery cabinets per inverter

Mega Ark

500kW+ Turnkey Containerized Solutions

Pre-Engineered - Designed with precise equipment selection to maximize efficiency, reliability, and lifespan

Factory Tested - Factory-built solution integrates comprehensive safety features

Plug-and-Play - Includes all batteries, power conversion, coupling transformer, safety features, cooling, and protection and controls

Integrated air conditioner for temperature control

Built-in dual fire

Suppression including cabinet and packs

Monitor and Manage Your Energy from Anywhere

Maximize energy performance of every circuit with smart load management

Automate business backup

Optimize demand response with Peak Shaving

Analyze how much energy was made, used, stored and sold back to the grid

Check the health of the battery

Remote commissioning and settings adjustment

Batteries for Residential Projects

Simpliphi

Simpliphi PHI-3.8-48-M 3.8kWh 48 Volt Lithium Ferro Phosphate Battery

The Simpliphi is our favorite battery of all the new lithium chemistries! This very stable non-toxic Lithium Iron Phosphate battery, with a ten-year or 10,000 cycle warranty, is completely scalable in parallel at the most common voltage (48Volts DC) of most residential off grid and hybrid inverters.

The virtual lack of battery memory means customers can come back year after year to add more storage and/or PV as their loads increase.

The Simpliphi battery offers a very high charge and discharge rate without any thermal issues. It comes standard with an exterior switch and internal charge protection.

Because of the lithium chemistry, the battery features the ability to use the entire range of voltage so that all of the battery capacity is available on the load. In combination with the Sol-Ark 8K series inverter this chemistry is a winner.

EG4

EG4-LL Lithium Battery

A different configuration, a true rack battery.

Closed loop communication.

A convenient module scale of 5.2 kW hours

10-year warranty

EG4 Lithium battery 51.2V (48V) 5.12kWh with 100AH internal BMS. Composed of (16) UL listed prismatic 3.2V cells in series which have been tested at 7,000 deep discharge cycles to 80% DoD - fully charge and discharge this battery daily for over 15 years without issue. Reliable and rigorously tested, with a 99% operating efficiency.

Included:
(1) 1 foot RS485 Communication Cable and (1) Set of Parallel Cables per battery (shipped separately)
(1) RS485 USB Battery Comm Cable PER (6) BATTERIES (shipped separately)

Features:

Tier One, A+ Cell Composition
99% Efficiency LiFePo4 16-Cell Pack
Max Energy Density
Flexible Racking Options
Environmentally Friendly & Lead-Free
Stress-Free Battery Bank Expansion Capacity
Longer Lasting; 10-20 year Design Life
Reliable Built-In BMS, Voltage, Current, Temp. and Health Management
Entire Battery UL Listed (UL 1973 BBFX2.MH65889).

Homegrid Energy

Stack’d Series

Latest Lithium Iron Phosphate technology

With the highest output and capacity range available, the Stack’d Series battery is the right solution for residential and small commercial storage projects.

.Output: up to 14.4 kW continuous

Surge: up to 24 kW (10 sec)

Capacity: up to 38.4 kWh per Stack (576 kWh total)