Overview

Introducing the upgraded EG4-LL (Lifetime Lithium) Lithium Iron Phosphate battery, now available in 25.6V (24V) and 5.12kWh with a 100A internal BMS, while retaining the advanced features of the acclaimed EG4-LL Battery. It remains fully compatible with the previous EG4-LL model.

This battery is built with 16 UL-listed prismatic 3.2V cells and is rigorously tested for 7,000 deep discharge cycles at 80% DoD, guaranteeing over 15 years of reliable daily use. It operates with 99% efficiency, making it a robust energy storage solution.

It includes an LCD screen for easy access to key battery data and supports selectable closed-loop inverter communications with brands such as Schneider, Solark, Victron, Growatt, and EG4, ensuring smooth integration and straightforward setup.

EG4 Lifetime Lithium, Best In Class Solar Rack Battery

• 7000 deep charge & discharge cycles rated / Designed for a 15-year life with 80% depth of discharge daily, extendable up to 20 years
  
• Tier One, A+ Cell Composition, 99% Efficiency LiFePo4 16-Cell Pack
  
• #1 Energy Density Server Rack Battery Form Factor
  
• Selectable closed-loop inverter communications including Schneider, Solark, Victron, Growatt, and EG4!
  
• Dual Onboard automatic fire arrestors for failsafe operation in high-risk environments/ Protection against rare hardware failure on high voltage solar charge controllers
  
• Parallel up to 16 batteries / Get the most power possible! Up to 81.9kWh while maintaining BMS communications!
  
• Have existing V1 EG4-LL Batteries? Enable expanded communication for existing V1 EG4-LL Battery Banks by using a new V2 EG4-LL Battery as your master battery. This feature will be available with a firmware upgrade that will be released soon.

Performance Components

• Reliable Integrated EG4 Smart BMS for Voltage, Current, Temperature, and Health Management
• Hassle-Free Battery Bank Expansion Capability
• Voltage Protection for Cells & Modules
• Short Circuit Protection >250A with <0.1mS Response Time
• Temperature Protection
• Operating Power Consumption Less than 25mA

Advanced Configurability

• On-board LCD Screen
  
• PC Monitoring Software
  
• Lifetime firmware updates

Reliability & Safety Testing

• Dual On-board Fire Arrestors
  
• Environmentally Friendly & Lead-Free
  
• Design Optimized and Tested by EG4's R&D Solar Laboratory. In-House & Texas Based
  
• 10-Year Warranty Supported and serviced out of Texas

What's Included

• (1) EG4-LL battery module
  
• (1) Battery Parallel Cable
  
• (1) Battery to PC USB Cable
  
• (1) Positive & (1) Negative Power Cable
  
• (2) M8-1.25 Terminal Bolts

Specifications and Manuals

Click Here for Specifications Sheet

Manual

Warranty

10-Year Warranty

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Warranty Registration and Validity

Your warranty must be registered within the first year of purchase or you must provide proof of purchase from Solar Guys Pro, an EG4 authorized distributor, for it to remain valid. Failure to register or provide proof of purchase may result in an invalidated warranty. This limited warranty applies to the original purchaser and is transferable one time only if the product remains in the original installation location. All parts exchanges are covered during the warranty period, but replacement shipping charges may apply outside the continental US.

Warranty Exclusions: EG4 Electronics is not obligated under this limited warranty for products subjected to the following conditions (including but not limited to):

1) Damages incurred during installation, reinstallation, or removal
2) Poor workmanship by an individual, installer, or firm
3) Damages from mishandling or inappropriate environmental exposure
4) Damages from improper maintenance or operating outside specified conditions
5) Tampering, altering, or disassembly of the product
6) Using the product in unintended applications
7) Damages from lightning, fire, flood, earthquake, riots, or acts of God
8) Products with altered, defaced, or removed serial numbers
9) Unauthorized firmware updates, upgrades, or patches
10) Damages from voltage or current spikes due to open-loop lithium battery communications

EG4 product warranty is a limited warranty – EG4’s liability in the event of a product defect is limited to repair or replacement under the terms of this warranty. EG4 is not responsible for any additional or indirect damages arising from the product malfunction. This includes incidental or consequential damages, such as loss of revenue, profits, or time. EG4 is not liable for any direct or indirect loss of life, bodily injury, illness, or death arising from misuse or mishandling of the product, whether caused by negligence or otherwise.

Return Policy

For returns, please contact us at: 571-350-0146 or email us at: info@solarguyspro.com. To view our return policy, please go: HERE

Warranty Claims Procedure

To initiate a warranty claim, contact our customer service team via phone at 571-350-0146 or email at info@solarguyspro.com to request an RMA. Warranty claims can also be initiated through the official EG4 website (https://eg4electronics.com/warranty).

Contact Information:
- Email: info@solarguyspro.com
- Phone: +1571-350-0146

Warranty Periods

- Inverters:
  - 10 years on 18kPV
  - 3 years (5 years extended warranty with EG4 batteries) on 3k, 6k, 6.5k, and 8k
- Batteries:
  - 10 years on LL
  - 5 years on LifePower (10 years extended when used with 18kPV)
  - 5 years on waterproof
  - 5 years on indoor wall mount
  - 10 years on outdoor wall mount
- Mini Split Air Conditioning:
   - 5 years on EG4 Hybrid AC/DC 12K BTU Mini Split
   - 5 years on EG4 Hybrid AC/DC 24K BTU Mini Split
   - 5 years on EG4 9K AC Mini Split
   - 5 years on EG4 12K AC Mini Split